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构成注塑模具焦化的缘由有哪些?

来历:beat365官网:http://es2c.com 日期:2020-12-18 宣布人:liqiang 阅读次数:
在注塑模具加工的时辰不免会让注塑产物变色焦化呈现斑点等环境,构成该题目的普通缘由是塑料或增加的紫外线接收剂,防静电剂等在料筒内过热分化,或在料筒内逗留时辰太长而分化,焦化,再伴同熔料注入型腔构成。上面山东模具建造厂家给大师具体的先容一下,但愿对大师有所赞助!
In the process of injection moulding, it is unavoidable to cause discoloration and coking of injection moulding products, such as black spots, etc. The common cause of this problem is that plastic or added ultraviolet absorbent, antistatic agent, etc. decompose in the barrel by overheating, or stay in the barrel for too long to decompose, coking, and then form with the injection cavity of melt. Next Shandong mold manufacturers to give you a detailed introduction, I hope to help you!
一,机台方面:
Firstly, on the machine side:
1.因为加热节制体系失控,致使料筒过热构成分化变黑。
1. Because the heating control system runs out of control, the cylinder overheating causes decomposition and blackening.
2.因为螺杆或料筒的缺点使熔料卡入而囤积,承受长时辰牢固加热构成分化,应查抄过胶头套件是不是磨损或外面是不是有金属异物。
2. Because of the defect of screw or barrel, the melt is trapped and stored, and decomposed by long time fixed heating, it should be checked whether the rubber head sleeve is worn or whether there are metal foreign bodies in it.
3.某些塑料如ABS在料筒内遭到高热而交联焦化,在几近保持本来颗粒外形景象下,难以熔融,被螺杆压破裂后夹带进入制件。
3. Some plastics, such as ABS, are heated and cross-linked in the barrel. It is difficult to melt when the original particle shape is almost maintained. They are crushed by screw and then entrained into the workpiece.
济南注塑模具加工
二,模具方面:
Second, in the aspect of die and mould:
1.模具排气不顺,易烧焦,或浇注体系的尺寸太小,剪切过于利害构成焦化。
1. Mold exhaust is not smooth, easy to scorch, or the size of the casting system is too small, too severe shear causes coking.
2.模内有不恰当的油类光滑剂,脱模剂。
2. There are inappropriate oil lubricants and release agents in the mould.
三,注塑模具塑料方面:塑料挥发物过量,湿渡过大,杂质过量,再生料过量,受净化。
Third, the injection mould plastics: too much volatile plastics, too much humidity, too many impurities, too much recycled materials, polluted.
四,加工方面:
4. Processing:
1.压力过大,速渡太高,背压过大,转速过快城市使料温分化。
1. Excessive pressure, excessive speed, excessive back pressure and excessive speed will decompose the material temperature.
2.应按期洁净料筒,断根比塑料耐烦还差的增加剂。
2. The barrel should be cleaned regularly to remove additives worse than plastic resistance.
以上的内容便是由山东模具建造厂家为大师先容的相干内容了,若是您有更多的定见和设法,接待在线留言:beat365官网:http://es2c.com咱们后续会有专人与您对接!
If you have more comments and ideas, please leave a message online: http://es2c.com, we will have someone to connect with you later!

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