KR19980020005A - Welding method of hard fusion synthetic resin - Google Patents

Abstract

A method of fusion bonding a resin in which a bonding portion of a resin article to be bonded is heated and melted to fuse both thereof, wherein a substance for destroying the fusion fusion factor is added to the above-mentioned heat melting portion. At the same time as or after this step, the resin articles are heated to destroy the fusion factor on the surface of the coated resin before the final resin articles are cooled.

Description

[Name of invention]

Welding method of hard fusion synthetic resin

1 is a cross-sectional view showing one embodiment in which the fusion method of the present invention is applied to an EF seam.

2 is a cross-sectional view showing another embodiment in which the fusion method of the present invention is applied to an EF seam.

Fig. 3 is an explanatory diagram of a resin capillary tube in one means of adding a substance that destroys a poor fusion factor in the fusion method of the present invention.

4 is a cross-sectional view of the resin capillary tube incorporated into an EF seam, showing a state before passing a current.

Fig. 5 is a sectional view showing the state of the capillary tube through the current in the example as well.

6 is a perspective view showing an example of the linear heating element in the fusion method of the present invention.

7 is a cross-sectional view showing another embodiment in which the fusion method of the present invention is applied to an EF seam.

Explanation of symbols on the main parts of the drawing

(2) ---------------------------------- heating element,

(3) ---------------------------------- conductive line,

(4) -------------------------------- coated resin,

(6) ---------------------------------- gas pipe,

(10) --------------------------------- capillary,

(12) ----------------------------------- Potion,

(A, B) ---------------------------- EF seams.

Detailed description of the invention

[Objective of the invention]

The present invention relates to a method for fusion of synthetic resin that is difficult to be fused.

[Technical Field to which the Invention belongs and Conventional Technology in the Field]

Conventionally, there existed the joining method of resin which melt | dissolves by arrange | positioning an electric wire between the joining surfaces of a synthetic resin product, heat-melting resin through an electric current through this electric wire. However, the crosslinked resin has a high molecular weight, a part having a three-dimensional structure, and the ultrahigh molecular resin has a very high molecular weight, and therefore, it is difficult to fuse the resin to the desired strength within a limited time. . Therefore, in order to fuse the above-mentioned fusion-resistant resins (hereinafter, referred to as poorly fusion resins), a technique for forming and fusing a hardly fusion resin and a resin which can be relatively easily fused in a two-layer structure has been known. have.

[Technical Challenges to Invent]

However, the above-described prior art uses a special mold at the time of manufacture, which makes the mold expensive, and the molding speed and the molding temperature must be strictly controlled. Therefore, the production efficiency is limited and the manufacturing price becomes expensive. In addition, there was a problem that the mechanical strength and chemical resistance of the product, heat resistance, weather resistance and the like is lowered.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for fusion of a hard fusion resin for fusion of a hard fusion resin to a desired strength within a limited time and for lowering the manufacturing price and improving the quality of a resin product bonded by fusion. It is in doing it.

On the other hand, as refractory resins, for example, crosslinked resins such as crosslinked polyethylene, crosslinked chlorinated polyethylenes, crosslinked fluorinated polyethylenes, fluorine resins, such as fluorine resins, polyarylides, such as polyimide, epoxy resins, such as bakelite, etc. And ultra high molecular weight resins such as urethane resins, maleic acid resins, melamine resins, and glass fish resins, such as alkyd resins such as phenol resins such as phenol resins, guanamine resins and xylene resins, and alkyd resins.

The fusion method of the hardly fused resin of the present invention for achieving the above object is that when the resin is heated and melted and fused, the resin is rigid because the resin has an aromatic group and a ring structure in the molecule, and the molecular weight is large. Fusion may be inhibited, and a substance that destroys fusion fusion factors (hereinafter, fusion fusion factor destruction substances) that is likely to have fusion inhibition, such as hydrogen bonds or fusion inhibition, may be added to the molten resin. Under heating, the fusion factor of the fusion-resistant resin, which is a fusion target, is destroyed by chemical reaction such as hydrolysis, alcoholic decomposition, amine decomposition, transesterification, oxidation, radical reaction, and the like to lower the molecular weight. The fusion of the fusion is promoted to realize fusion with the desired strength.

As a method of destroying the fusion factor, there are a method of cleaving crosslinking and intermolecular bonds between polymers, and a method of cleaving polymer linkage of a fusion fusion resin.

In addition, the substance shown below is mainly used as a poor fusion factor destruction substance.

Hydroxides (salts) such as sodium hydroxide, potassium hydroxide, aluminum hydroxide, barium hydroxide, hydroxide hydroxide,

Sulfates such as sulfuric acid, zinc sulfate, aluminum sulfate, ammonium sulfate, sodium sulfate, hydroxylamine sulfate,

Hydrochloric acid and hydrochloride, such as ammonium chloride, guanidine chloride

Acetates such as acetic acid and manganese acetate, lead acetate, cobalt acetate,

Carboxylic acid oil and a salt thereof represented by R- (COOH) n, (R = H, Cl-C18, n = 1-4),

Sulfonic acids and salts thereof represented by R- (SO3H) n, (R = H, Cl-C18, n = 14),

Phosphoric acid and its salts,

Acidic phosphoric acid esters and salts thereof, heavy acid and salts thereof,

Pyridines and salts thereof, pyridinium zirmat, 4-dimethylaminopyridines, pyridines including 4-phylizinopyridines and salts thereof, brine, emulsions, microencapsulated water,

Amines, urea, guaniazine, represented by R- (NH2) n, (R = H, C1-Cl8, n = 1-4)

Alcohol amines such as (HO) mR- (NH2) n, (R = H, Cl-1C18, m = l-4, n = 1-4) and salts thereof, R- (OH) n, (R = Alcohols such as H, C1-1C18, n = 1-6),

Ammonium Perchlorate, Carries Perchlorate, Perchlorate Containing Lithium Perchlorate, Bismuth Acetate, Berium Acetate, Potassium Acetate, Calcium Acetate, Aluminum Acetate, Ammonium Acetate, Cobalt Acetate, Sodium Acetate, Iron Acetate, Lead Acetate, Nickel Acetate Acetic acid, such as anizin, ammonium acetate, and salts thereof

Nitro compounds, such as nitro compounds, R- (NO2) n, (R = H, Cl-C18, n = 1-4), nitroparaffins, nitrolog serine, picric acid,

p-quinone geokisim, p, p'-gibenzoylquinone geokisim, quinones,

Alkylperacetic acid and salts thereof represented by R- (COOOH) n, (R = H, C1-C18, n = 1-4),

Peracetic acid and salts thereof, hydrogen peroxide (water),

Organic peroxides, such as ketone pelloxide, hydro peloxide, etc., zialkyl fel oxide, etc., ziacyl fel oxide, etc., peloxy ester, etc., peloxy carbonate, etc., peloxy monocarbonate, etc. Etc.

2,5-dimethyl-2,5-bis (t-butylperoxy) hexane,

2,5-dimethyl-2,5-bis (t-butylperoxy) hexyne-3,

Dicumyl Peroxide,

Di-t-butyl peroxide,

t-butyl hydroperoxide,

t-butyl trimethyl silly peroxide,

Back is good.

The number of -0-0- bonds in the peroxide may be one or several in the molecule, and the peloxides may be combined.

The alkyl group portion of the organic oxide may have a ring structure or branched structure, and a double bond, triple bond, aromatic group, halogen group, ester group, phosphate ester group, phosphite ester group, ether group, thioether group, amino group, nitro Functional groups such as groups, nitroso groups, hydroxyl groups, thiol groups, sulfone groups, sulfin groups, carboxyl groups, acyl groups, oxime groups, amide groups, imide groups, cyano groups, isocyano groups, guanizyl groups, and epoxy groups, and oval elements It may be included, but preferably, the decomposed substance has an odorless substance or a vapor pressure that does not transpire enough to detect odor at a temperature at which the decomposed substance is fused so that no odor is generated when the peroxide decomposes during fusion. Or a decomposed substance is a hypermolecule. For example, methyl group, ethyl group, propyl group and its isomers, butyl group and its isomers, penyl group and its isomers, hexyl group and its isomers, cyclohexyl group, hexyl group, trimethylcyclohexyl group and its isomers, and cycles Aliphatic hydrocarbons such as roddecyl group, aromatic hydrocarbons such as phenyl group, tamil group, and naphthyl group; polyalkyl feloxides, polystyrene peloxides, polyacryl peloxides, polymethacryl peloxides, acyl peroxide polymers; Copolymers and blends of units are preferred.

Peroxides may be individual or may be present in plural. In addition, other additives, for example, cyanurates such as ethylene glycol dimethacrylate, trimethyl propane trimethacrylate, triaryl cyanurate, triaryl isocyanurate, sulfur, quinone geokisim and the like , Guanizine, N-N ', ilphenylembismarimide, ring, hydroquinones, imidazoles, benzothiazols, chikeramusalites, amines, thioureas, zinc oxide, epoxy compounds You may squeeze the combination together.

It is better to be compatible with the carriers of the broken fusion resin and the fusion factor destructive material and the decomposition products of the fusion factor destructive material.

Benzol Peroxide, Zinc Peroxide, Calcium Peroxide, Barium Peroxide, Sodium Peroxoate, etc. Oxolate, Ferric Manganese, etc. Manganese Acid, Sodium Peroxide, etc. Houmate, Potassium Persulfate, Ammonium Persulfate, Sodium Persulfate, Sulfate, Polypyridinium Polymer oxidants such as chlorite,

Dioxides such as manganese dioxide and lead dioxide,

Keromic anhydride, keromates, bikerates,

Tetraoxides and salts thereof, such as osmium tetroxide and ruthenium tetraoxide,

Pentoxides and salts thereof, such as vanadium pentoxide,

Phosphoric acid esters, phosphorous acid esters, thiophosphoric acid esters, alkyldithides represented by R1, R2, R3-PO4, (R1 = H, C1-C18, R2 = H, C1-Cl8, R3 = H, C1-C18) Phosphoric Acid,

Esters represented by R1- (COO-R2) n, (R1 = C1-C18, R2 = C1-C18, n = 14).

Esters shown by (R1-COO) n, R2 (R1 = H, C1-C18, R2 = H, C1-C18, n = 1-4).

Acid amides shown by R1-(CONH-R2) n, (R1 = H, C1-C18, R2 = H, Cl = Cl8, n = 1-4).

Acid amides shown by (R1-CONH) n-R2, (R1 = H, C1-C18, R2 = H, C1-C18, n = 1-4).

Imides shown as (R1-CO-N (R3) -CO-R2), (R1 = H, C1-C18, R2 = H, C1-C18, R3 = H, C1-C18).

Other R1, R2-C (CN) -N = NC (CN) -R3, R4, (R1 = H, C1-C18, R2 = H, Cl-C18, R3 = H, C1-18, R4 = H, It is also possible to use a compound such as C1-Cl8), azobisisobutynylyl, azozincarbonamide, ethylene carbonate, anmonium seedlings, borax, red phosphorus, sulfur, adhesives, and the like.

As the counter ions of the salts, barium, lithium, ammonium, sodium, aluminum, cobalt, manganese, iron, nickel, guaniazine, zinc, potassium, calcium, keromium, cadmium, platinum, hydrogen (proton), magnesium, titanium, Vanadium, copper, hydroxylamine, etc. may be used. The alkyl group moiety shown in R of the above substance may have a ring structure or a branched structure, and a double bond, triple bond, aromatic group, halogen group, phosphate ester group, phosphite ester group, ether group, thioether group, amino group, nitro Functional groups such as groups, nitroso groups, hydroxyl groups, thiol groups, sulfone groups, sulfin groups, carboxyl groups, acyl groups, oxime groups, amide groups, imide groups, cyano groups, isocyano groups, guanizyl groups, and epoxy groups, and oval elements It is okay to include. Alkyl group R1, R2 having -N = N- bond in the composite may be the same group as other groups R3, R4, and the ring structure alone is fine. Moreover, as a method of adding the above-mentioned poor fusion factor destructive substance to the molten resin, there is a method shown below. First, the poor fusion factor destructive substance is applied to the surface of the melted melt before welding. Secondly, a tape or tube body containing a poorly fused factor destructive substance in a tape body or a tube body or being attached or attached to the tape body or tube body is provided in advance on the surface of the melted melt before welding. Thirdly, the poorly fusion factor destructive material is filled in the molten resin at the time of being fused or melted to the molten melted surface in advance before fusion, using the charger.

Fourthly, the poorly fusion factor destructive substance is contained or enclosed in the coated resin of the heating element for heating and melting the poorly soluble resin.

Fifth, a poorly fusion factor destructive substance is applied to the outer surface of the heating element for heating and melting the poorly fused resin.

When applying the fusion factor destructive substance, the fusion factor destructive substance may be diluted and suspended with water, hydrocarbons, alcohols, esters, ethers, silicone oil, silicone grease and the like.

Sixth, a tape or tube body is provided on the outer surface of the heating element for heating and melting the hardly fused resin, wherein the tape body or tube body is formed by containing or encapsulating or adhering the poorly soluble factor destructive substance to the tape or tube body.

The said 1st-6th method is selectively used by the kind of molded article joined by fusion | melting. Incidentally, the inclusion or encapsulation of the tape or tube body of the poorly fused factor destructive substance in the molding resin or the coating resin of the heating element may be directly added or microencapsulated when the resin is melted, and a space in the resin may be added. In the direct encapsulation after preparation, microencapsulation may also be encapsulated.

Further, a fusion-molded resin containing a peroxide is disposed between the joining surfaces of the synthetic resin product, and the fusion-bonded resin and the refractory fusion synthetic resin are heated and melted by melting.

When a fusion factor destructive substance is added to the molten resin, the substance undergoes a chemical reaction such as hydrolysis, alcoholic decomposition, amine decomposition, transesterification, oxidation, radical reaction, etc. It is possible to accelerate the fusion of the object to be welded and to achieve fusion with the desired strength by breaking down by lowering the molecular weight.

In addition, when the fusion-bonded synthetic resin and the fusion-containing synthetic resin containing peroxide are heated and melted, the peroxide decomposes and radicals are generated to draw hydrogen of the to-be-bonded resin, thereby lowering the molecular weight. This decay results in fusion and can be fused. In addition, since the molten resins can be chemically bonded to each other, strong fusion can be achieved. Further, by using the synthetic resin for fusion as a resin containing an unsaturated bond, the unsaturated groups are polymerized to form a crosslinked resin, so that stronger fusion is possible.

Composition and Action of the Invention

(Example 1)

The following materials are mixed to provide a resin composite for coating ('part' = part by weight).

100 parts of polyethylene

2 parts water (hard fusion factor destruction material)

Butanol 2 parts (hard fusion factor destructive substance)

Butylamine, 2 parts (hard fusion factor destroying substance)

0.5 parts of 2,5-dimethyl-2,5-bis (t-butylperoxy) hexane

4-dimethylaminopyridine 0.5 part (hard fusion factor destroying substance)

Sodium perborate 0.5 parts (hard fusion factor destructive substance)

Triarylcyanurate 0.5 part (hard fusion factor destroying substance)

The resin with the above-mentioned compound is coated on a heating wire (nickel wire) in a predetermined length with a predetermined length, sandwiched between refractory resins such as crosslinked polyethylene, and the heat generating wire is made to pass a current to fuse the refractory resin. This substantial diagram is shown in FIG. In Fig. 1, one receiving portion of the crosslinked polyethylene EF (erectulofuzon) seam A is conveyed, and the heating element 2 is transferred to the inner surface of the receiving portion l. The heating element 2 is formed by forming a conductive wire 3, such as a nickel wire, in a sleeve shape bent in a coil shape by bending a coated wire coated with the resin coating 4 containing the above-mentioned poorly fused factor destruction material. It protrudes to the outer side of a seam from the cross section of the place 1 which receives the terminal pin 5 provided in both ends of 3).

The EF seam (A) is molded (injection molding) by press-fitting a molten resin (polyethylene) to which a crosslinking agent is added to the center of the mold on which the sleeve-like heating element 2 is mounted. On the other hand, for example, the gas pipe 6 to be joined to the inlet 1 of the EF seam A is molded (extruded) by extruding a molten resin to which a crosslinking agent is added from a die. Then, one end of the gas pipe 6 is inserted into the inlet 1 of the EF seam A, and a predetermined amount of current is allowed to flow through the terminal 5 to the conductive wire 3 of the heating element 2 for a predetermined time. Thus, the crosslinked resin of the coated resin 4 containing the encapsulated fusion factor destructive substance of the conductive wire 3 of the heating element 2 and the gas pipe 6 on the inside and the outside thereof, and the hard fusion-resistant water of the EF seam A The sheet is heated and melted in the range of a weak point line, and the sheets are brought into contact with each other to be fused.

In addition, as another method of adding a fusion factor destructive substance to the molten resin of the EF seam (A) and the gas pipe (6), the fusion factor to the outer surface (outer peripheral surface and inner peripheral surface) of the heating element (2) formed on the sleeve There is also a method of forming a coating layer of a destructive material. Further, a tape body (adhesive tape or the like) having a tape base formed of the same material as the coated resin 4 of the conductive wire 3 is bent and attached to the outer surface (outer peripheral surface and inner peripheral surface) of the heating element 2, Another method is to bend the outer peripheral surface of the end of the gas pipe 6 before the welding operation. Instead of containing or encapsulating the fusion factor destructive substance in the tape substrate, a coating layer of the fusion fusion factor destructive substance may be formed on the surface opposite to the adhesive surface of the tape substrate. There is also a method of applying a poorly fusion factor destructive substance to the inner surface of the EF seam A (inner circumferential surface of the heating element) or the outer surface of the end portion of the gas pipe 6 or both thereof before the fusion operation. In addition, the heating element 2 of the gas pipe 6 and the EF seam A may be filled in the molten resin during the fusion operation during the fusion operation, or during the fusion operation, outside the EF seam A using a syringe or the like. There is a method to charge between). On the other hand, there is no problem because the hole in the EF seam with the needle can be blocked by the molten resin. In particular, in the case of EF seam A, holes for indicators for visually confirming melting and fusion of resins are usually provided. There is a number. On the other hand, as shown in FIG. 2, in the case of the EF seam B completely transferred to the inner surface of the seam in the coiled state in the state where the conductive wire 3 is peeled off, the inner surface of the EF seam B or the outer surface of the gas pipe 6 or the like. It is difficult to fusion by applying a fusion factor destructive material on both sides, or by using the above-mentioned syringe which is bent and attached to the outer peripheral surface of the end of gas pipe 6 or the inner peripheral surface of EF seam (B) or both. Printable destructive substances can be added to the melt on the inner surface of the EF seam (B) and on the outer surface of the gas pipe (6).

(Example 2)

3 to 5 show another embodiment, and as shown in FIG. 3, 2,5 dimethyl-2,5 bis (t-butyl) hexane 12 (hereinafter referred to as a potion) is placed in the resin capillary 10. It is enclosed and the neck 13 is attached by heat fusion to form a capsule chain. In the case of FIG. 4, the capillary 10 with the neck is bent like the coated nichrome wire 14, and in the case of FIG. 4, the capillary 10 is inserted into the inlet 15 of the seam C which is made of a hardly fused resin (FIG. A picture of the fused resin tube (17) is inserted).

In such a case, the nichrome wire becomes hot at the time of fusion, and decomposition and boiling of the potion 12 occurs, and the capillary 10 expands as shown in FIG. 5 to connect the seam C, the tube 17, and the heating heating cord ( 14) The gaps between them can be prevented, so that the liquid and vapor of the potion 12 and its decomposition product can be spread evenly on the coalescing surface when the capillary 10 ruptures due to heat. In addition, by attaching the neck 13 to the capillary tube 10, even if many places are torn at the time of preservation and construction of the seam C, the risk of liquid leakage or non-fusion can be prevented, resulting in more safety. Is increased.

(Example 3)

100 parts of 2,5-dimethyl-2,5-bis (t-butylperoxy) hexane (hard fusion factor destroying substance)

Guanizine Part 5 (Hard-Factor Destructive Substances)

Kinonji Oki Shikinon (Part 5)

Is inserted into the seam using zeolite (porous ore) or the like.

(Example 4)

100 parts of hydrocarbon grease and silicone grease

20 parts of 2,5-dimethyl-2,5 bis (t-butylperoxy) hexane (hard fusion factor destroying substance)

Trimethylpropane trimethacrylate 1 part (hard fusion factor destructive substance)

Is mixed and applied to nichrome coating in the seam.

(Example 5)

2,5-dimethyl 1-2,5 bis (t-butylperoxy) hexane (EPT-diluted product sheet) was coated on a heating wire (nickel wire) of a predetermined length, and a current was applied to the heating wire by sandwiching it between the refractory resins. Through the crosslinking resin is fused.

(Example 6)

In this embodiment, peroxide is contained in the resin between the bonded synthetic resins, that is, the electric wire covering resin, that is, the synthetic resin for fusion, and fused by causing the chemical reaction at the time of fusion by using the coated resin. The wire coating resin is an unsaturated bond, in particular a double bond, a resin containing a double bond having an aryl position, an acryl group, a methacryl group, for example, butadiene resin, styrene butadiene rubber, butadiene rubber, isoprene rubber, EPM, EPDM , Nitrile butadiene rubber, chlorofuren rubber, butyl rubber, polyethylene rubber, polyisobutylene, coumarone resin, unsaturated polyester resin, frans resin, petroleum resin, cyclopentagene petroleum resin, polyhydroxypolyolefin, maleic acid By heating and melting a resin, a pmaric acid resin, a polyalcohol methacrylate, etc. in air or in oxygen, peroxides, such as a pyoxide and a hydropeloxide, are produced in resin. On the other hand, when peroxides, such as pyoxide and hydropeloxide, are required in the amount of resin already contained, the heating and melting may not be performed in air or oxygen. Moreover, you may irradiate an ultraviolet-ray as needed, and you may add peroxide, such as a pyoxide and a hydropel oxide. An unsaturated group may be in the main chain or side chain of resin, or may mix the compound containing an unsaturated group in resin, for example, an oleic acid ester, a stearic acid ester, a lauric acid ester, a polyethyleneglycol acrylic acid diester unit, etc.

In order to stabilize the hydropeloxide, trialkylamines, methacrylic acid and metal salts thereof, in particular nickel complexes, 2-methacryloirochycisylacetic phosphate and metal salts thereof, in particular nickel complexes, di-2-meta, in the resin You may contain a chlorolooxycycisylacetic phosphate and its metal salt, especially a nickel complex.

As described above, a wire coating resin containing peroxide is prepared by heating and oxidizing a synthetic resin containing an unsaturated bond in air or oxygen. As shown in FIG. 6, the wire-shaped heat generating material 2 can be manufactured by covering the wire coating resin 4 with an extruder from above the insulating layer 3b of the conductive wire 3. And as shown in FIG. 7, when the pipe | tube 6 and the joint D are joined, the electrically conductive wire 3 of the heat generating body 2 is heated to 200-300 degreeC by a controller (not shown), The temperature is maintained for 10 seconds to heat-melt the resin around the conductive wire 3, that is, the wire coating resin and its bonded resin. At this time, chemical bonds are generated by radical reactions such as hydrogen release reaction and recombination reaction between the peroxide and the synthetic resin in which the unsaturated bond is controlled by the radical control in the wire coating resin. Then, the conductive wire 3 of the heating element 2 is heated and heated to 300 to 350 ° C. by the controller, and maintained at that temperature for several tens of seconds to polymerize the unsaturated bond in the molten resin to cause a crosslinking reaction. It can be combined with high welding strength. Fusion is also performed in the chemical reaction between the poorly fused bonded resin by the peroxide in the wire coating resin, and the inclusion of the unsaturated bond in the wire coating resin facilitates the formation of peroxides, and the chemical bonding at the time of fusion. In order to stably perform the crosslinking reaction and increase the fusion strength, it is effective to include unsaturated bonds in the wire coating resin like peroxide.

In addition, when the wire coating resin itself is oxidized (peroxide-containing operation), because the peroxide is contained in the resin, the amount of peroxide is blown, and a chemical reaction (radical reaction, hydrogen drawing reaction) is performed to chemically bond with the bonded synthetic resin. , Polymerization reaction, maximum bonding reaction, etc.) can be easily generated, and stronger fusion can be obtained, and the above effect cannot be expected by oxidation of only the wire coating resin surface. In the case of mass production at a time, mass production is very difficult when the surface of the resin is oxidized. Therefore, it is effective to include peroxides in the resin by oxidizing the wire coating resin itself.

In addition, since the resin and the peroxide are chemically bonded at the time of fusion, the resulting by-products do not flow out to the outside, or when the peroxide is hydropyoxide, it does not go out to the water. It is not necessary to pay attention to the effects of living things on the human body.

[Effects of the Invention]

In the present invention, since a substance that destroys the poorly fused factor is added to the molten resin, the hardly fused resin can be appropriately fused with the desired strength in a limited time.

In addition, since even poorly fusion-elastic water can be fused, the manufacturing cost of the molded article to be joined by fusion can be reduced and the quality can be improved. In addition, a molded article that cannot be joined by fusion can be joined.

Claims (9)

In the method of fusion of a resin in which the bonded portions of the resin articles to be bonded are melted by heating and melting, the surface portions are melted in order to achieve the bonding effect, and the above-mentioned hot melt portions which finally allow cooling of the resin article are allowed. A method for fusion of a poorly fused resin, characterized by adding a substance that destroys the poorly fused factor. In the method of fusion of a resin in which a bonded portion of a resin article to be bonded is melted by heating and melting, the resin surface to be melt-bonded to melt the surface portion and finally allow cooling of the resin article for the effect of bonding. A method for fusion of a hard fusion resin, characterized in that to apply a substance that destroys the fusion factor in advance. In the method of fusion of a resin in which a bonded portion of a resin article to be bonded is melted by heating and melting, the surface portion is melted for the effect of bonding, and the pre-fusion factor that finally permits cooling of the resin article is destroyed in advance. A method of fusion bonding of a refractory resin, characterized in that a tape containing a substance or a tube containing the substance is installed on a resin surface to be melt-bonded. In the method of fusion of a resin in which a bonded portion of a resin article to be bonded is melted by heating and melting, a charger is used in advance before melting, in which a surface portion is melted to finally allow cooling of the resin article for the effect of bonding. A method for fusion of a hard fusion resin, characterized in that the resin surface to be bonded to the outside to bond the material that destroys the fusion factor. In the method of fusion of a resin in which a bonded portion of a resin article to be bonded is melted by heating and melting, a charger is used at the time of fusion, in which the surface portion is melted and finally permits cooling of the resin article for the effect of bonding. The external fusion method of the fusion-resistant resin, characterized in that to fill the molten resin portion of the material to destroy the fusion factor. In the fusion method of a resin in which a heat generating element is interposed between a joint portion of a resin article to be joined, and the joint portion is heated and melted by heat generation of the heat generator, the surface portion is melted in order to have an effect of joining. The heating element which finally permits cooling of the heating element is composed of at least a heating core wire and a coating resin for coating the heating element, and a substance for destroying the poor fusion factor is added to the coating resin. . In the fusion method of a resin in which a heat generating element is interposed between a joint portion of a resin article to be bonded, and the joint portion is heated and melted by heat generation of the heat generator, the surface portion is melted in order to achieve the effect of bonding. The heating element, which finally permits cooling, is constituted of at least a heating core wire and a coating resin covering the coating resin, and the surface of the coating resin is coated with a substance that destroys the fusion factor. Fusion method. In the fusion method of a resin in which a heat generating element is interposed between a joint portion of a resin article to be bonded, and the joint portion is heated and melted by heat generation of the heat generator, the surface portion is melted in order to achieve the effect of bonding. The heating element, which finally permits cooling, is composed of at least a heating core and a coating resin covering the same, and the tape or the tube containing the material containing the substance which destroys the fusion factor on the surface of the coating resin. A fusion method of hard fusion resin, characterized in that the installation. A method of fusion of a synthetic resin product in which a bonded portion of a synthetic resin article to be bonded is melted by fusing together, in which a surface portion is melted for the effect of bonding, and finally cooling of the resin article is completed to complete the bonding. And dissolving the two synthetic resin products by dissolving the fusion synthetic resin containing peroxide between the synthetic resin products and heat-melting the fusion-synthetic resin to the joint portion of these synthetic resin products. Fusion method.