Wuhan Handern Machinery Co., Ltd.

Wuhan Handern Machinery Co., Ltd.
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Orientation Technology in Blown Film: One of the important properties of polymer-based plastic materials is that while some of the plastic material is usually present in a relatively unordered configuration, it can be molded along the molecular chain Directional arrangement. Other forming methods (such as biaxial stretching) also allow the...

Flat extrusion blow molding blow molding process see below, the use of straight-type horizontal nose, head and auxiliary structure are relatively simple, the installation and operation of equipment are very convenient; but the extruder covers an area of ?? large. As the hot air flow up, cold air flow down, the upper half of the tube cooling than...

According to the film traction direction is different, the blown film can be divided into the production of flat extrusion on the lead blow molding, flat extrusion blow flat extrusion and vertical extrusion blow molding three, of which the former is the most common. Flat extrusion on the introduction of blow molding process is as follows. 1...

Plastic film generally refers to the thickness of 0.25 mm below the flat and soft plastic products. Soft flat materials with a thickness of more than 2.0 mm and hard flat materials with a thickness of more than 0.5 mm are called plastic sheets; soft flat materials with a thickness of 0.25-2.0 mm and rigid flat materials with a thickness of...

Co-extruded multi-layer sheet structure, head structure and production line: Extruder exit at a circular cross-section, the plate is rectangular cross-section, so the nose connector gradually transition from a conical rectangular flow channel; its role is to material Compress and deliver evenly to head. All three resins have their own flow control...

PC and PMMA sheet extrusion production technology: PC sheet extrusion process characteristics and process parameters PC is easy to absorb water, raw materials must be dry, moisture content less than 0.02% .Exhaust single screw extruder. PC is a high viscosity plastic extrusion must control the temperature of various parts; in the three-roll...

(1) ABS plate extrusion process characteristics ABS easy to absorb water, drying before molding, and the choice of exhaust single screw extruder. In order to prevent flash over of the exhaust section, the temperature of the charging section and the exhaust section should be properly raised. Sieve before the pressure sensor pressure is too high...

Sheet PP extrusion process features: Because PP hygroscopicity, therefore, raw materials do not need to dry. PP plate slow cooling, thermal expansion coefficient, therefore, lip opening can be smaller. Production of thick plate, if found in the calender roller air bubble close to the roller, the need to decompress several times deflated. Optional...

1. HDPE sheet extrusion process characteristics As HDPE shrinkage in the direction of material flow larger, and its larger crystallinity, the general use of a higher barrel temperature and lower die temperature. HDPE sheet calender should pay attention to prevent the roller temperature is too high and cause continuous, multi-layer roll of the...

Sheet quality and standards currently implemented GB 13520 / T-92. Sheet is divided into two major categories of decorative panels and industrial panels, decorative panels are divided into transparent, translucent and opaque three. Corrugated board is currently no national standard and departmental standards, only corporate standards. PVC-U sheet...