CN104772841A - Method for preventing plastic die from scratching mould cavity - Google Patents
Method for preventing plastic die from scratching mould cavity Download PDFInfo
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- CN104772841A CN104772841A CN201510120417.6A CN201510120417A CN104772841A CN 104772841 A CN104772841 A CN 104772841A CN 201510120417 A CN201510120417 A CN 201510120417A CN 104772841 A CN104772841 A CN 104772841A
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- mould
- cavity
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- high temperature
- temperature box
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Abstract
The invention discloses a method for preventing a plastic die from scratching the mould cavity. The method is characterized in that according to the characteristics of cavity parts, a high-temperature box-type furnace is adopted, and the temperature of the high-temperature box-type furnace is set below the quenching and tempering temperatures of the cavity parts. The method has the following advantages: (1) the plastic is degraded at a high temperature and is converted into plastic powder, so the inner of the cavity will not be scratched by the plastic sheets; (2) the plastic is degraded into powder, so the plastic does not need to be knocked out fiercely, and the damage to the external shape of the cavity is avoided; (3) the temperature is set below the quenching and tempering temperatures of the cavity parts, thus the cavity will not be affected, while the plastic sheets are degraded into powder, and the method is simple and practicable.
Description
Technical field
The present invention relates to field of machining, particularly relate to when thermosetting, thermoplastic are at curing molding because of the abnormal processing method producing sticking to mould and feeding scuffing after avoiding mould of plastics for die cavity sticking to mould.
Background technology
Thermosetting, thermoplastic are widely used in injection moulding, injection-compression molding as in the application of LED product and integrated antenna package product.Intensive for die cavity, the little and mould of complexity of cavity, in process of production once there is sticking to mould, is exactly very fatal problem.General processing method takes copper pin, draw point to utilize to beat to be taken out the plastics of solidification, and in process, the careless slightly die cavity that just scratches affects product appearance, and the requirement of this little core to LED product and integrated antenna package product, thinning tendency is to running counter to.The cavity gap making small-sized microminiaturized product is very thin, and what have is even less than 0.1mm, once sticking to mould, often copper pin all cannot thrust, and mode is knocked in employing, and die cavity is scrapped substantially, loses very large.
Summary of the invention
It is to be solved by this invention that to be mould of plastics take the problem of inconvenience and a kind of processing method avoiding die cavity feeding to scratch of convenient operation that provides at die cavity sticking to mould.
The present invention is solved the problems of the technologies described above by following technological means: a kind of processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould, according to cavity parts characteristic, utilize high temperature box furnace, below the quenching and tempering temperature described high temperature box furnace being set in cavity parts, cavity parts generation tissue change can be prevented like this, hardness reduces, change in size.
As a further improvement on the present invention, the cavity parts producing sticking to mould is put into described high temperature box furnace and come into operation, impels plastic degradation, become loose powder.
As a further improvement on the present invention, close described high temperature box furnace, take out described cavity parts, utilize copper pin, plastics that copper sheet strikes off powdering, in conjunction with burnisher process die cavity to clean level.
Beneficial effect of the present invention: plastics cooling is become powdery with high temperature by (1), avoids the problem to the scratch of die cavity inside when taking out plastics relic; (2) plastics explanation is powdery, does not need, by the mode of knocking energetically, to avoid the infringement to die cavity outer shape during cleaning; (3), below the quenching and tempering temperature being set in cavity parts, die cavity can not be affected but plastics relic can be explained, simple.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below.
The embodiment of the present invention 1: a kind of processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould, for thermosetting plastics as phenolic resins, according to cavity parts characteristic, utilize high temperature box furnace, below quenching and tempering temperature high temperature box furnace being set in cavity parts namely 300 degrees Celsius, the cavity parts producing sticking to mould is put into high temperature box furnace and starts heating, phenolic resins is impelled to degrade, become loose powder, close high temperature box furnace, take out described cavity parts, utilize copper pin, copper sheet strikes off the plastics of powdering, finally use air gun process die cavity to clean level.
The embodiment of the present invention 2: a kind of processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould, for thermoplastic high density polyethylene (HDPE), according to cavity parts characteristic, utilize high temperature box furnace, below quenching and tempering temperature high temperature box furnace being set in cavity parts namely 135 degrees Celsius, the cavity parts producing sticking to mould is put into high temperature box furnace and starts heating, phenolic resins is impelled to degrade, become loose powder, close high temperature box furnace, take out described cavity parts, utilize copper pin, copper sheet strikes off the plastics of powdering, finally use air gun process die cavity to clean level.
The embodiment of the present invention 3: a kind of processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould, for thermoplastic low density polyethylene (LDPE), according to cavity parts characteristic, utilize high temperature box furnace, below quenching and tempering temperature high temperature box furnace being set in cavity parts namely 112 degrees Celsius, the cavity parts producing sticking to mould is put into high temperature box furnace and starts heating, phenolic resins is impelled to degrade, become loose powder, close high temperature box furnace, take out described cavity parts, utilize copper pin, copper sheet strikes off the plastics of powdering, finally use air gun process die cavity to clean level.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. the processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould, is characterized in that, according to cavity parts characteristic, utilize high temperature box furnace, below the quenching and tempering temperature described high temperature box furnace being set in cavity parts.
2. the processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould according to claim 1, is characterized in that, the cavity parts producing sticking to mould is put into described high temperature box furnace and come into operation, impels plastic degradation, become loose powder.
3. the processing method avoiding mould of plastics to scratch for feeding after die cavity sticking to mould according to claim 2, it is characterized in that, close described high temperature box furnace, take out described cavity parts, utilize copper pin, plastics that copper sheet strikes off powdering, in conjunction with burnisher process die cavity to clean level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120417.6A CN104772841A (en) | 2015-03-19 | 2015-03-19 | Method for preventing plastic die from scratching mould cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120417.6A CN104772841A (en) | 2015-03-19 | 2015-03-19 | Method for preventing plastic die from scratching mould cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104772841A true CN104772841A (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510120417.6A Pending CN104772841A (en) | 2015-03-19 | 2015-03-19 | Method for preventing plastic die from scratching mould cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104772841A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175580A (en) * | 2005-03-24 | 2008-05-07 | 奥弗奈尔·亨利·帕瑞 | Apparatus and method for thermally removing coatings and/or impurities |
-
2015
- 2015-03-19 CN CN201510120417.6A patent/CN104772841A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175580A (en) * | 2005-03-24 | 2008-05-07 | 奥弗奈尔·亨利·帕瑞 | Apparatus and method for thermally removing coatings and/or impurities |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150715 |
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| RJ01 | Rejection of invention patent application after publication |