Hot runner function

2012-02-21

This article will talk about hot runner function,hot runner advantege in injection mould moulding hot runner,Anole,famous hot runner for mould brand and hot runner supplier in china.

In injection molding process,hot runner used with mould,play an important role.For example,in the production of plastic injection ultra-thin parts (such as the cell phone battery cover),through the use of hot runner can easily produce high precision,high quality products;For the poor liquidity injection molding materials (such as LCP),through the use of hot runner can obviously improve the liquidity of raw materials,ensure injection production running smoothly;For some large injection molded parts,such as car bumper and door plank,TV shell,air conditioning hull,after,through the use of hot runner,make very difficult molding become relatively simple.

In many of cavity mould injection,lack of hot runner simply cannot be forming.That is hot runner is the best technology to ensure the flow balance.In many of the mould cavity injection,lack of hot runner simply cannot be forming.Hot runner is to ensure that the best technology flow balance.Because plastic in port in shear force,no matter how reasonable the geometry of the mould has balance,the products forming out of is difficult to consistent weight,especially concerned for many of the mould cavity is,if do not use hot runner,the products ouside forming out will be lighter than the inside.

To the plastic processing manufacture,as long as there is a certain batch injection production,using hot runner is economical.Because hot runner technology help enterprice deduce the waste material in injection moulding production.In most case,waste material can not used for recycle.Some times the waste material weight is equal to producets.If adop traditional injection type,it mean that the waste material is as manfg as the products.Valuing,use hot runner,can save 30% ~ 50% of raw materials.In addition,would help reduce the wear and tear of mould,extend the service life of mould.Generally speaking,hot runner service life is twice times longer than small gate mould.

Although the composition of hot runner is simple,but its every part plays a very important role.Usually,good quality,structural design and material requirements of hot runner are very high,that is the premise to ensure the quality of hot runner and hot runner function.

Written by Tina
service1003@anole-hot-runner.com

Kewords : Hot runner mould Hot runner supplier hot runner advantage hot runner function hot runner technology injection moulding hot runner

situations need to choose hot runner

2012-02-10

With the fasten development of mold,hot runner been used widely and widely.It is better to use hot runner in some sistuation,we make a brief descibtion.

situations need to choose hot runner as below:
1.In product heat sensitive situation
2.product big or in wall thin situation
3.in runnerl excessively long situation
4.in production output big situation
5.to product outward appearance or accuracy requirement high situation
Hot runner system's merit,hot runner advantage is far bigger than the disadvantage .
1st,product thin thickness, guaranteed that the melt can arrive fully, reduces the product distortion degree greatly, improves the product surface quality and the product uniformity greatly;
2nd,the hot runner internal pressure loss is small, the good melt fluidity,density easy even, avoids the injection molding distortion, as well as the size unstable and flaws and so on chromatic aberration;
3rd,completely or eliminates the majority of material(drainage opening material), does not need the artificial cutting drainage opening, does not need to crush again, enhances the material use factor, saves the energy, raised the production efficiency (common shrinkage, packing insufficiency, fusion mark, irregular color, edge, the warp phenomenon also to be possible to improve obviously or to eliminate);
4th,eliminated the additional heat which waste material brings, mold's coolling-off period is only the plastic cooling time, reduced the processing cycle;
5th,hot runner is automatic turnoff runner, improve runner outward appearance, enhanced the automated work degree;
6th,control melt plastic temperature accuracy, eliminated the material degeneration, guarantee pressure time to be more reasonable, reduces the product internal stress.
7th,reduces the injection molding pressure, advantageous in protects the mold, extension service life.