Unlock instant, AI-driven research and patent intelligence for your innovation.

Spraying protecting method before drawing and forming of automobile sheet metal part

A technology for automotive sheet metal parts and deep drawing. It is applied in coatings, rosin coatings, natural resin coatings, etc. It can solve the problems of easy scratches, surface scratches, surface polishing and finishing process bottlenecks, etc., to prevent Damaged, lubricating and protective effects are the best, and the effect of solving surface scratches

Inactive Publication Date: 2015-04-01
WUHU HUANQIU AUTO PARTS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiency that scratches are easily generated during the drawing and forming of automobile sheet metal parts in the prior art, and provide a spray protection method before drawing and forming of automobile sheet metal parts. By adopting the technical scheme of the present invention, It can fundamentally solve the problem of surface scratches in the stamping and deep drawing forming process of sheet metal parts, thereby solving the bottleneck problem of surface polishing and trimming process in the later production of parts, and improving the quality of stamping and deep drawing forming of sheet metal parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of spraying protection method of automobile sheet metal parts before deep-drawing forming of the present embodiment, its steps are:

[0052] Step 1. Prepare the coating agent for spraying

[0053] The coating agent is composed of lacquer raw materials and thinners, wherein: the mass ratio of lacquer raw materials and thinners is 100:2; specifically, the preparation process of the coating agent in this embodiment is as follows:

[0054] (1) Prepare the components of the diluent in parts by mass: 100 parts of gasoline, 23 parts of X-4 amino paint thinner, 11 parts of zinc dialkyldithiophosphate, 8 parts of diethylene glycol methyl ethyl ether, 5 parts of methyl isobutyl ketone, 7 parts of isopropanol, 8 parts of pyrrole, 7 parts of polyvinyl alcohol, 12 parts of diethylene glycol dimethyl ether, 12 parts of dichloroethane; and X-4 amino paint thinner Add to gasoline, stir and mix evenly to obtain mixture A;

[0055] (2), zinc dialkyldithiophosphate prepared in st...

Embodiment 2

[0064] A kind of spray protection method of automobile sheet metal parts before deep-drawing forming of this embodiment, its basic steps are the same as embodiment 1, and difference is:

[0065] Step 1: In the process of preparing the coating agent for spraying, the mass ratio of the paint material and the diluent is 100:1, wherein: the diluent is composed of the following components, and each component is composed of the following parts by mass: 100 parts of gasoline, 23 parts of X-4 amino paint thinner, 10 parts of zinc dialkyldithiophosphate, 7 parts of diethylene glycol methyl ethyl ether, 4 parts of methyl isobutyl ketone, 6 parts of isopropanol, 5 parts of pyrrole, polyethylene 5 parts of alcohol, 11 parts of diethylene glycol dimethyl ether, and 11 parts of dichloroethane. Prepare the components of the paint material in parts by mass: 100 parts of ester glue varnish, 30 parts of vaseline, and 80 parts of acrylic varnish.

Embodiment 3

[0067] A kind of spray protection method of automobile sheet metal parts before deep-drawing forming of this embodiment, its basic steps are the same as embodiment 1, and difference is:

[0068] Step 1: In the process of preparing the coating agent for spraying, the mass ratio of the paint material and the diluent is 100:3, wherein: the diluent is composed of the following components, and each component is composed of the following parts by mass: 100 parts of gasoline, 23 parts of X-4 amino paint thinner, 12 parts of zinc dialkyl dithiophosphate, 9 parts of diethylene glycol methyl ethyl ether, 7 parts of methyl isobutyl ketone, 8 parts of isopropanol, 9 parts of pyrrole, polyethylene 9 parts of alcohol, 13 parts of diethylene glycol dimethyl ether, and 13 parts of dichloroethane. Prepare the components of the paint material in parts by mass: 110 parts of ester glue varnish, 20 parts of vaseline, and 90 parts of acrylic varnish.

[0069] A kind of spray protection method of a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a spraying protecting method before drawing and forming of an automobile sheet metal part, and belongs to the technical field of machining of automobile sheet metal parts. The spraying protecting method comprises the following steps: firstly, preparing a coating agent for spraying, wherein the coating agent consists of a paint material and a diluent; secondly, performing pretreatment on the automobile sheet metal part, removing oil from the automobile sheet metal part before drawing and forming by adopting an organic solvent, and drying the automobile sheet metal part; thirdly, spraying the coating agent prepared in the first step on the surface of the automobile sheet metal part which is subjected to the pretreatment in the second step by using spraying equipment, and drying the sprayed automobile sheet metal part, wherein the spraying amount is that the coating agent is 8 to 9 microns after the coating agent is cured, the pressure of compressed air is 0.3 to 0.4 MPa when the coating agent is sprayed, and the spraying distance is 160 to 180 mm. According to the spraying protecting method, the coating agent is uniformly sprayed on the surface of the automobile sheet metal part after the automobile sheet metal part is subjected to the pretreatment, so that the spraying protecting method has important effects on preventing a workpiece from straining and cracking and preventing a mould from wearing when a thick workpiece is drawn or bent.

Description

technical field [0001] The invention relates to the technical field of automobile sheet metal processing, and more specifically relates to a spray protection method for automobile sheet metal parts before deep drawing. Background technique [0002] Sheet metal is a comprehensive cold processing process for metal sheets (usually below 6mm), including shearing, punching / cutting / compositing, folding, welding, riveting, splicing, forming (such as automobile body), etc. Its remarkable feature is that the thickness of the same part is consistent. Sheet metal processing is a key technology that sheet metal technicians need to master, and it is also an important process for forming sheet metal products. Sheet metal processing includes traditional cutting, punching, bending and forming methods and process parameters, as well as various cold stamping die structures and process parameters, various equipment working principles and operating methods, and new stamping technology. and ne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B05D5/00C09D193/04C09D193/00C09D133/00C09D7/00
Inventor 张天松
Owner WUHU HUANQIU AUTO PARTS