Gluing process of polypropylene plastic and iron plate

Abstract

The invention discloses a gluing process of polypropylene plastic and an iron plate. The process is characterized by comprising the following steps of (1) selection of an adhesive, wherein polyurethane glue 101 is adopted for gluing and repairing; (2) surface treatment of polypropylene; (3) surface treatment of the iron plate, wherein a phi 3 drill is adopted for forming three holes in the front surface of the iron plate at equal intervals, and the iron plate is soaked in a hydrochloric acid solution with the mass fraction of 5-8% for 5-8 min, then taken out for flushing by flowing water and dried; (4) gluing, wherein the polyurethane glue 101 is uniformly adjusted and prepared into a first group and a second group according to a mass ratio of 100:30, a glued surface of the iron plate is coated with a layer of glue and then dried, the glue is poured into a groove since a polypropylene component is in a groove shape, then the iron plate is put into the groove for gluing, the glue is added into the groove to make the liquid level flush with the iron plate and also injected into the iron plate holes at the same time, a 30-50 N force is applied for pressing, curing is carried out at the room temperature of 60-80 DEG C for 20-24 h, and then the polypropylene plastic is successfully glued with the iron plate. The process is reasonable in working procedures and low in cost, matching of each parameter is reasonable and coordinated, time consumption is small, and the operation is simple.

Description

technical field [0001] The invention relates to a bonding process of polypropylene plastics and iron plates. Background technique [0002] The bonded parts of polypropylene and iron plate were cracked due to the impact and needed to be bonded again. However, the existing maintenance plan for polypropylene plastic and iron plate has unreasonable process arrangement, numerous processes and long time, which can no longer meet the requirements. Needs to be improved for better performance. Contents of the invention [0003] The main purpose of the present invention is to provide a bonding process of polypropylene plastic and iron plate with reasonable process, simple operation, short time and low manufacturing cost. [0004] In order to achieve the above object, the invention provides a bonding process of polypropylene plastic and iron plate, which is characterized in that it includes the following requirements: [0005] (1) Adhesive selection: use polyurethane 101 glue for b...

AI Technical Summary

Problems solved by technology

[0002] The bonded parts of polypropylene and iron plate were cracked due to the impact and needed to be bonded again. However, the existing maintenance plan for polypropylene plastic and iron plate has unreasonable process arrangement, numerous processes and long time, which can no longer meet the requirements. Needs to be improved for better performance