Introduction to the main production process of single-wall corrugated pipe production lineIntroduction to the main production process of single-wall corrugated pipe production line
1. Hot press forming process
The main steps of the hot pressing process are as follows:
Raw material preparation → mixing and heating → extrusion molding → cooling → demoulding
The main process is extrusion molding using hot-melt raw materials of thermoplastics to be extruded and then cooled for molding. The main equipment is an extruder and a die. The detailed process flow is as follows:
Plastic sheet production process, plastic sheet production line hot press forming process
2. Blister molding process
The general technological process of blister forming: sheet-heating-forming-demoulding-edge removal-finished product
Blister molding is mainly used in the plastic packaging industry. The material requirements for blister molding:
1. Blister molding can only produce products with relatively uniform wall thickness, and cannot produce plastic products with very different wall thicknesses.
2. The wall thickness of blister molding is generally within the range of 1 to 2mm or thinner (the most commonly used thickness of blister packaging for small packages is 0.15 to 0.25mm)
3. The stretch of blister molded products is subject to certain restrictions. The diameter and depth ratio of blister molded plastic containers is generally not more than 1, and in extreme cases it must not exceed 1.5. 4. The dimensional accuracy of blister molding is poor, and its relative error is average In more than one percent.