Traditional, High - speed and Precision Injection molding

 As we all know, injection molding production is pursuing "high quality, efficiency, low consumption", that is, the pursuit of profit maximization. However, the development of things needs a process, rather than overnight, the development of injection molding, and in different stages of development, the focus is different. 

Traditional injection molding

The initial traditional injection molding is a priority to guarantee the normal period, the quality can be appropriately relaxed, not to mention the good rate of production and production efficiency. At that time, the technical master reflected in that others can not adjust qualified samples sample mold, as long as you can call out (no matter you spent one or a day a night or three days or two nights), you are a "cow" person, you are the hero. In view of this, leading to the high adverse rate of product products, many rely on human processing (water cutting inlet, batch cutting, pressing edge, smelting device correction deformation, etc. ), long production cycle, quality cannot be guaranteed, long - term vicious cycle of rework. Although now the traditional injection molding has been greatly improved, the man-machine ratio and labor intensity are still very high. 

High-speed injection molding

High-speed injection molding relative to traditional injection molding, reduce the human-machine ratio, reduce labor intensity, with mechanical automation to replace most actions of people, reflect "quantity"; this process, high requirements for mechanical automation and assembly line operation. Qualified technical masters, not only to see if you can debug the OK model but also to consider the stability and operability of production. If you do not reach the set expectations, your model is "beautiful", it is just a model for viewing, and you cannot become the "guide" of mass production. 

Precision injection molding

Precision injection molding is developed on the basis of high-speed injection molding, is specialized in the production of high value-added products, refers to an injection molding method difficult to meet the requirements of conventional injection molding machine and conventional injection molding process. Reflect "quality" to gain credibility, to "quantity" to gain profit. The precision of precision plastic parts includes size precision, shape precision, and surface precision, corresponding to size tolerance, shape tolerance, and surface roughness respectively, where size precision is an important quality index of manufacturing and use of plastic parts. 

There are many factors affecting the quality and size precision of precision injection molding products, such as material selection, mold design and processing, precision injection molding machine, molding technology, the level of molding personnel and production management, etc. 

Specific requirements are: 

( 1) The size accuracy is high and small tolerance, i. e. high precision size boundary; 

(2) product weight repetition accuracy is high, requiring day, month, year size stability; 

(3) mold is good, rigid material, size accuracy, smoothness of the type cavity and positioning accuracy between templates are high; 

(4) replaces replace conventional syringe; 

(5)The adopts the precision injection molding process; 

( 6) Select materials suitable for precision injection molding. 

reference from https://www.quora.com/Why-is-precision-injection-molding-difficult