Horizontal Injection Moulding Machine HJF118 Ton / Plastic Modeling Machine

It is also known to most people that the shrinkage of injection parts is easy to occur when the melt temperature is too high. If the temperature is lowered appropriately by 10-20 C, the shrinkage problem will be improved.

However, if the shrinkage occurs in a relatively thick part of the injection part, then the melt temperature is too low, such as close to the lower limit of the melt temperature, which is not conducive to solving the shrinkage problem, or even more serious, the thicker the injection part is, the more obvious the situation is.

The reason is similar to the die temperature too low, the melt gel condensates too fast, and the temperature difference between the shrinkage water level and the nozzle can not be formed, so the feeding channel of the shrinkage water level will be blocked prematurely, and the solution of the problem will become more difficult. It can also be seen that the faster the melt condensation speed, the more unfavorable to solve the shrinkage problem, PC material is a very fast condensation raw material, so its shrinkage problem can be said to be a big problem of injection moulding.

In addition, too low melt temperature is also not conducive to increase the overall shrinkage, leading to an increase in the amount of concentrated shrinkage, thus aggravating the shrinkage problem.

Therefore, when adjusting the machine to solve the difficult shrinkage problem, it is very important to check whether the melt temperature is too low. In addition to looking at the thermometer, it is more intuitive to check the melt temperature and fluidity by air injection.

NINGBO HAIJIANG MACHINERY MANUFACTURING CO.,LTD., situated in Ningbo Yinzhou Investment & Innovation Center, coversa land of more than 50,000M2.It was established in 1992 and now employs a staff of more than 500 people. with CE and ISO9001

Haijiang Company is a hihg-tech enterprise specialized in manufacturing injection molding machine that mainly covers dozens of speci?cations with injection shot of 45-2,0000g and mold clamping force of 400-15,000KN. Based on the marrow of the trade gained and through years' accumulation, the company has made constant innovation to ensure the machine quality.Parts built into the machines of defferent mold locking forces are all processed under specialized management. HJF series injection molding machines are developed by Haijiang Company on the basis of a collection of the advantages assimilated from all world famous brand machines with optimized design realized by CAD/CAM/CAPP where technical problems such as noise of the entire machine and low energy dissipation are removed and thus the design quality of products is secured. The company adopts advanced equipment and technology and applies scientific management. Besides, it has introduced high-precision full automatic CNC machines fitted with imported electric and hydraulic parts, which have tremendously improved the accuracy and steadiness of the whole machine. Its present products such as HJK and KJF series and widely applied in the electronic, automobile and civil industries.
In order to participate in competition in the world market,the company has clustered a group of high quality technical and managerial personnel with innovative spirit by means of optimized combination fo personnel. The company faces the society and users by acting on the principle of pursuit for ?rst class and sincere service. We will appreciate friends from all circles who have given their concern and support to Haijiang machines with first class products and first class after service.