It opens up a wide range of newapplications for the plastic industry, especially for large surfaceparts such as automobile bars, consumer electronic control panels,and automotive exterior parts. RocTool has developed a moreflexible thermal conductive forming system, which has anon-conductive wood structure or "cage" outside the steelmould.
Now the mould basically needsheat treatment to increase the hardness and service life of themould. Before heat treatment, preliminary processing of thetemplate should be carried out: drilling guide hole, return hole(dynamic die), cavity hole, screw hole, gate sleeve hole (dynamicdie) cooling water hole, milling runner and cavity, and some dieshould also be milling inclined guide box.
However, due to the inherent goodfluidity of plastics and the difficulty of controlling its size,the manufacturing process of injection moulding parts is moredifficult than other industries. Especially in the details,slightly neglected, the phenomena of pore, chromatic aberration andflying edge are easy to occur in injection moulding. Seriously, theproducts are discarded directly. These common problems in theprocess of injection moulding directly test the injection mouldingengineers'ability to process the products. Details are in place tocontrol.
The re of dimensionaccuracy of injection parts is not high. Generally, it is based onthe standard of assembling. The re of appearance ofinjection parts is relatively high. If necessary, the secondprocessing (such as oil injection) may be used to improve theappearance defects. Injection Mould Opening teaches you how toprevent damage to the current common precision die template withcr12, Cr12MoV and some die steel, Cr12 hardness can not be toohigh, often cracked at HRC60 degrees, the commonly used hardness ofthe template is generally about HRC55 degrees.
清油已逐渐被清漆取代，用量日益。目前市场的清油已经很少使用，主要以清漆为主，因为清漆相比清油，施工方便，流平性好，而且持久性更强。成膜物质还包括部分不挥发的活性稀释剂，它是使涂料牢固附着于被涂物面上形成连续薄膜的主要物质，是构成涂料的基础，决定着涂料的基本特性。
2、助剂如消泡剂，流平剂等，还有一些特殊的功能助剂，如底材润湿剂等。这些助剂一般不能成膜，但对基料形成涂膜的过程与耐久性起着相当重要的作用。3、颜料一般分两种，一种为着色颜料，常见的钛，铬黄等，还有种为体质颜料，也就是常说的填料，如碳钙，滑石粉。
4、溶剂包括烃类溶剂（矿物油精、煤油、汽油、、甲、等）、醇类、醚类、类和酯类物质。溶剂和水的主要作用在于使成膜基料分散而形成液体。它有助于施工和改善涂膜的某些性能。根据涂料中使用的主要成膜物质可将涂必须谨慎原料配制过程。
水泥是由石灰质（如石灰石、由圣、泥灰质石灰石等）和粘土质（如粘土、泥灰质粘土等）原料
