跳至主要内容

The advantages for Hot Runner Mold

 The hot runner mold refers to a mold that uses a heating device to keep the melt in the flow passage from solidifying at all times. Because it is shorter than the traditional mold shot cycle and saves raw materials, hot runner molds are widely used in various industrialized countries and regions in the world today.

Shorten cycle
The molding cycle is shortened. Because there is no restriction on the cooling time of the sprue system, the parts can be ejected in time after curing. Many thin-walled parts produced with hot runner molds have a molding cycle of less than 5 seconds.


Save material
In the pure hot runner mold, there is no cold runner, so there is no production material. This is especially significant for applications where plastics are expensive. In fact, the major hot runner manufacturers in the world have experienced rapid development in the world when oil and plastic materials are expensive. Because hot runner technology is an effective way to reduce material costs.


Reduce waste
Reduce waste and improve product quality. During the hot runner mold forming process, the plastic melt temperature is accurately controlled in the runner system. Plastics can flow into the cavities in a more uniform state, resulting in consistent quality parts. The hot runner molding parts have good gate quality, low residual stress after demolding, and small deformation of parts. Therefore, many high quality products on the market are produced by hot runner molds. 
Production automation


Reduce waste and improve product quality. During the hot runner mold forming process, the plastic melt temperature is accurately controlled in the runner system. Plastics can flow into the cavities in a more uniform state, resulting in consistent quality parts. The hot runner molding parts have good gate quality, low residual stress after demolding, and small deformation of parts. Therefore, many high quality products on the market are produced by hot runner molds.

Production automation
Eliminating subsequent processes is conducive to production automation. There is no need to trim the gate and recycle the processed cold runner. It's conducive to production automation. Many foreign manufacturers have combined hot runners with automation to significantly increase production efficiency. Many advanced plastic molding processes have been developed based on hot runner technology.

标签：

评论

发表评论

此博客中的热门博文

Short Shot Injection Molding

Insufficient injection is also called short shot. Short shot is the phenomenon of partly incomplete at the end of the material flow, or a part of the cavity filled with dissatisfaction, especially the thin wall area or the end area of the the runner when injection molding.   When the melt is cooled down without filling the mold cavity, or the melt does not fill completely after running into the cavity, it is called the short shot injection molding. The main reason for short shot is that the flow resistance is too large, which makes the melt unable to continue to flow. The factors which impact the melt flow length including:  * wall thickness of parts, * mold temperature,  * injection pressure,  * melt temperature and material composition.  If these factors are not handled properly, they will result in short shot. ​ Green Vitality Industry Co., Ltd offers high quality  plastic injection molding services  to meet the injection molding needs of any custom...
发表评论
阅读全文

What is 'Catch hook and thin-wall' of plastic mold products?

What is 'Catch hook and thin-wall' of  plastic mold products ?​ 1. The Catch hook The catch surface and the amount of catch hook are the important basis for the test data during assembe.  Once made any tiny mistake about these numbers, It would become a huge mistake of the product. Therefore, during mould design, We needs to pay special attentin to the catch hook assembly and testing. 2. The thin-wall What is the big problem about thin wall? The binding point is particularly easy to press and brittle, Then could't pass the test. It will be difficult to assemble in the next step, The product will be uneven filling, shrink, and easy broken.
发表评论
阅读全文

What is the difference between TPU extrusion and injection molding?

Extrusion, also known as   extrusion molding   or extrusion, is also called extrusion in rubber processing. It refers to a processing method in which the material passes through the action between the barrel and the screw of the extruder, is plasticized while being pushed forward by the screw, and continuously passes through the machine head to make various cross-section products or semi-products. Injection molding is a method of producing shapes for industrial products. Products are usually injection molded from rubber and plastic. Injection molding can also be divided into injection molding and die casting. Injection molding machine, referred to as injection machine or injection molding machine, is the main molding equipment for making thermoplastic or thermosetting materials into plastic products of various shapes by using plastic molding die. Injection molding is realized by injection molding machine and mold.
发表评论
阅读全文