DE2437349A1 - Wax removal from mould of lost wax casting machine - by irradiation after introduction of matl. with high loss factor - Google Patents
Wax removal from mould of lost wax casting machine - by irradiation after introduction of matl. with high loss factorInfo
- Publication number
- DE2437349A1 DE2437349A1 DE19742437349 DE2437349A DE2437349A1 DE 2437349 A1 DE2437349 A1 DE 2437349A1 DE 19742437349 DE19742437349 DE 19742437349 DE 2437349 A DE2437349 A DE 2437349A DE 2437349 A1 DE2437349 A1 DE 2437349A1
- Authority
- DE
- Germany
- Prior art keywords
- wax
- mould
- casting machine
- loss factor
- high loss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005495 investment casting Methods 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/043—Removing the consumable pattern
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The wax is molten and removed from the precision mould of a lost wax casting machine by introducing into the structure of the mould a material with a high loss factor (over 1, 0) in the frequency range from 300 to 30,000 MNz (900-2500 MHz). The preferred material is graphite or carbon in the form of a coating. The mould is then irradiated by microwaves of this range until the wax has become liquefied. This is less expensive than using solvents and releases no toxic fumes. It is easier to operate and to include in a flow line production than wet steam heating in an autoclave. The wax is molten on the surface before thermal elongation can crack the ceramic shell. The process is automatic and continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742437349 DE2437349C2 (en) | 1974-08-02 | Method for lost wax from a precision casting mold and device for carrying out the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742437349 DE2437349C2 (en) | 1974-08-02 | Method for lost wax from a precision casting mold and device for carrying out the method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2437349A1 true DE2437349A1 (en) | 1975-07-24 |
| DE2437349B1 DE2437349B1 (en) | 1975-07-24 |
| DE2437349C2 DE2437349C2 (en) | 1976-03-04 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| DE2437349B1 (en) | 1975-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |