Tubing

The gradual improvement of domestic sheet machine manufacturing level improves the increase of domestic enterprises producing plastic sheets and the diversification of sheet varieties, and also improves the prosperity of thermoforming packaging industry. The development of China's sheet machine industry, there are generally the following aspects of the trend of change:

First, a single "separate single-screw extruder" configuration "vertical three-roller" sheet production line tends to be saturated with most of the domestic thermoforming enterprises have this type of sheet production line, which for the enterprises to occupy the market in the first place, accumulation of funds, technological development set up a It has made great achievements for the enterprises to occupy the market in advance, accumulate capital and develop technology. It can basically meet the production requirements of the sheet, but the sheet produced by it, especially the production of HIPS sheet can not produce satisfactory gloss, low grade. This sheet machine technology has been quite mature, easy to assemble, easy to buy parts, simple configuration, simple operation, cheap, low maintenance costs, has become more popular models. Fierce competition, has forced some manufacturers of sheet metal machine to other products. Such as the main energy has been put into the "development of aluminum-plastic composite panels"; to better sheet production line.

There are some manufacturers from the sheet machine production to the sheet processing, plastic sheet equipment, plastic absorbing industry. With this sheet machine can be processed PP, HIPS, PE egg tray sheet, packaging sheet for blister molding and so on. If the calender roller is replaced by air knife, it can produce thinner sheet for plastic absorbing.

However, at present, most of this equipment is not equipped with this device, which brings many inconveniences to the production enterprises, and to a certain extent restricts the development of enterprises in the field of sheet and molding products.