CN103881352A - Machining method of automobile headlight material - Google Patents
Machining method of automobile headlight material Download PDFInfo
- Publication number
- CN103881352A CN103881352A CN201410118020.9A CN201410118020A CN103881352A CN 103881352 A CN103881352 A CN 103881352A CN 201410118020 A CN201410118020 A CN 201410118020A CN 103881352 A CN103881352 A CN 103881352A
- Authority
- CN
- China
- Prior art keywords
- polycarbonate
- working method
- polyethylene terephthalate
- automobile headlamp
- machining method
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003754 machining Methods 0.000 title abstract 2
- 239000004417 polycarbonate Substances 0.000 claims abstract description 17
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 8
- -1 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010061 rubber shaping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to a machining method of an automobile headlight material. The method comprises the following steps: drying polycarbonate for 3 to 4 hours at 100 DEG C to 200 DEG C and then melting at 260 DEG C to 340 DEG C; and adding polyethylene glycol terephthalate into the molten polycarbonate. The obtained material is high in transparency, stable in chemical property and good in surface hardness.
Description
Technical field
The present invention has the working method about a kind of material, particularly as the working method of automobile headlamp material.
Background technology
Along with the change of technical development and people's idea, in automobile component, there are many non-metallic components.Be wherein plastics part as the leading material of non-metallic component, it is easy to process, easy for installation, uses lightly, therefore more and more obtains the favor of automobile industry, and using plastics part is its inevitable requirement of development of automobile from now on.
Plastics part manufacturing processed, first will carry out as required plastic rubber shaping, be processed into all kinds of plastic cement work in-process or parts, and injection moulding is one of main forming method of plastic cement part.Injection moulding must just can complete by the molding devices such as injection moulding machine and injection mold.
As typical nonmetal parts part in automobile, be an important moulding through the automobile headlamp of injection moulding.
Owing to should thering is good transparence as automobile headlamp after processing, to ensure the maximum illumination of light, also should ensure higher temperature tolerance simultaneously, opposing is because degenerating and distortion the inside after long-term irradiation, also have important performance index to be, it should have certain degree of hardness, resists certain tiny collision and wearing and tearing when as headlight.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of working method of automobile headlamp material, it comprises:
Step 1: polycarbonate is dried to 3 ~ 4 hours at 100 DEG C ~ 200 DEG C;
Step 2: described polycarbonate is melted at 260 ~ 340 DEG C;
Step 3: add polyethylene terephthalate in the polycarbonate of described fusing.
Injectable plastic material in the present invention contains polyethylene terephthalate, it typically is the main component of beverage bottle, its hygienic safety is reliable, and there is good transparency and appearance characteristics, but its physical property and chemical stability a little less than, by adopting polycarbonate not only to improve flame retardant resistance and chemical stability, also there is wear-resisting and hardness preferably simultaneously.The two hot-melt object is convenient to make automobile headlamp part.
Embodiment
The invention provides the working method of automobile headlamp injectable plastic material, through the part of this material injection moulding by the headlight being applied in automotive industry, and there is good transparence, to ensure the maximum illumination of light, also should ensure higher temperature tolerance, opposing is degenerated and distortion because of the inside after long-term irradiation, also has important performance index to be simultaneously, this material should have certain degree of hardness, resists certain tiny collision and wearing and tearing when as headlight.
The working method that for this reason the invention provides a kind of automobile headlamp material, it comprises:
Step 1: polycarbonate is dried to 3 ~ 4 hours at 100 DEG C ~ 200 DEG C;
As preferably, in described step 1, the humidity of described polycarbonate is 0.02%.
Step 2: described polycarbonate is melted at 260 ~ 340 DEG C;
Step 3: add polyethylene terephthalate in the polycarbonate of described fusing.
Injectable plastic material in the present invention contains polycarbonate (PC), it is a kind of engineering materials, therefore have good resistance to impact shock and thermostability, but flow characteristics is poor, transparency also cannot reach the standard of modern driving simultaneously, therefore cannot independently make car light.
And polyethylene terephthalate (PET) wherein it typically is the main component of beverage bottle, its hygienic safety is reliable, and has good transparency and appearance characteristics, but its physical property and chemical stability a little less than.
After the two combination, by adopting polycarbonate not only to improve flame retardant resistance and chemical stability, also there is wear-resisting and hardness preferably simultaneously.The two hot-melt object is convenient to make automobile headlamp part.And the mol ratio of the two is 1:0.2 ~ 1:0.4 also provides molecule number magnitude guarantee for the combination of the two.
As the preferred embodiments of the present invention, before described step 3, described polyethylene terephthalate is dried 4 hours at 120 ~ 165 DEG C.Dried PET is conducive to form noncrystal, improves the transparency of car light.
As another preferred embodiment of the present invention, described automobile headlamp material is injection molding under 10 ~ 15Mpa.Injection moulding by elevated pressures improves mobility, is convenient to the formation of noncrystal, enhances the transparency.
Should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, should be appreciated that non-limiting embodiments describes as just example.The protection domain of the essence that the application will require is more embodied in the scope that independent claim provide, with and dependent claims.
Claims (5)
1. a working method for automobile headlamp material, it comprises:
Step 1: polycarbonate is dried to 3 ~ 4 hours at 100 DEG C ~ 200 DEG C;
Step 2: described polycarbonate is melted at 260 ~ 340 DEG C;
Step 3: add polyethylene terephthalate in the polycarbonate of described fusing.
2. working method as claimed in claim 1, is characterized in that: in described step 1, the humidity of described polycarbonate is 0.02%.
3. working method as claimed in claim 1, is characterized in that: the mol ratio of described polycarbonate and described polyethylene terephthalate is 1:0.2 ~ 1:0.4.
4. injectable plastic material as claimed in claim 1, is characterized in that: before described step 3, described polyethylene terephthalate is dried 4 hours at 120 ~ 165 DEG C.
5. working method as claimed in claim 1, is characterized in that: described automobile headlamp material is injection molding under 10 ~ 15Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118020.9A CN103881352A (en) | 2014-03-27 | 2014-03-27 | Machining method of automobile headlight material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118020.9A CN103881352A (en) | 2014-03-27 | 2014-03-27 | Machining method of automobile headlight material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103881352A true CN103881352A (en) | 2014-06-25 |
Family
ID=50950500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118020.9A Pending CN103881352A (en) | 2014-03-27 | 2014-03-27 | Machining method of automobile headlight material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103881352A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619157A (en) * | 2009-07-28 | 2010-01-06 | 福建省石狮市通达电器有限公司 | Injection molding material for injection molding in mold and preparation method thereof |
| CN102101839A (en) * | 2009-12-21 | 2011-06-22 | 拜尔材料科学股份公司 | Polycarbonate with improved thermal and mechanical properties and reduced thermal expansion coefficient |
-
2014
- 2014-03-27 CN CN201410118020.9A patent/CN103881352A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619157A (en) * | 2009-07-28 | 2010-01-06 | 福建省石狮市通达电器有限公司 | Injection molding material for injection molding in mold and preparation method thereof |
| CN102101839A (en) * | 2009-12-21 | 2011-06-22 | 拜尔材料科学股份公司 | Polycarbonate with improved thermal and mechanical properties and reduced thermal expansion coefficient |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |