Automobile hard-plastic instrument board clearance surface difference guarantee technology

Abstract

The invention discloses an automobile hard-plastic instrument board clearance surface difference guarantee technology which comprises the following steps: (1) feeding; (2) pressing and forming an instrument board body; (3) welding a defrosting air flue for the instrument board body; (4) pressing and forming an instrument mask (5) preheating; (6) welding; (7) lowering temperature for cooling; and (8) installing. With adoption of the technology, the manufactured instrument board can ensure assembling clearance and product surface different as well as the artistic effect; in addition, the defrosting and defogging effect of the instrument board can be enhanced; the instrument board body is excellent in leakproofness and overall performance, high in strength and reliable in structure.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a process for ensuring clearance and surface difference of hard plastic instrument panels of automobiles. Background technique [0002] In recent years, more and more instrument covers in automobile instrument panels only adopt a simple plug-in method. Such an installation method will cause a gap surface difference between the instrument panel and the instrument cover, which is not conducive to the stability of the instrument panel. [0003] Secondly, the defrosting ability of the car is very important to the safety of the car. If the welding of the defrosting air duct and the instrument panel is not tight, it will cause air leakage, which will affect the defrosting and defogging effect, and then affect the driver's sight and cause driving hazards. ; and in order to improve the connection stability of the defrosting air duct and the instrument panel in the prior art, measures such as gl...

AI Technical Summary

Problems solved by technology

[0002] In recent years, more and more instrument covers in automobile instrument panels only adopt a simple plug-in method. This installation method will cause a gap between the instrument panel and the instrument cover, which is not conducive to the stability of the instrument panel.

[0003] Secondly, the defrosting ability of the car is very important to the safety of the car. If the welding of the defrosting air duct and the instrument panel is not tight, it will cause air leakage, which will affect the defrosting and defogging effect, and then affect the driver's sight and cause driving hazards. ; and in order to improve the connection stability of the defrosting air duct and the instrument panel in the prior art, measures such as glue are used to tightly bond the defrosting air duct to the instrument panel, so as to improve the airtightness of the connection between the two, but After the glue is used for a period of time, its performance will decline, and its effect will gradually disappear. Therefore, when its function disappears, the airtightness between the defrosting air duct and the instrument panel will be affected, so there is a risk factor