CN104984883A

CN104984883A - Spraying process for transmission gear

Info

Publication number: CN104984883A
Application number: CN201510343093.2A
Authority: CN
Inventors: 何拥军; 何嘉圣; 何嘉贤; 赖卫华
Original assignee: LIUZHOU JINMAO MACHINERY CO Ltd
Current assignee: LIUZHOU JINMAO MACHINERY CO Ltd
Priority date: 2015-06-19
Filing date: 2015-06-19
Publication date: 2015-10-21

Abstract

The invention provides a spraying process for transmission gear. The spraying process comprises: pre-treating, drying, applying body powder, curing, carrying out online grinding, spraying primer, carrying out flash-drying, electroplating sliver, carrying out flash-drying, spraying transparent protective paint, curing, carrying out finish turning, pre-treating, drying and applying transparent powder, wherein construction parameters for spraying primer and electroplating sliver are as follows: paint throughout of 80 CC, atomizing pressure of 2.5 bar, fan-shaped pressure of 2.5 bar, a gun distance of 180 mm and primer construction viscosity of 13 seconds; controlling thickness of the transparent protective paint to 10 microns, spraying the transparent protective paint by a rotating cup, wherein the construction parameters for spraying the transparent protective paint are as follows: throughout of 60 cc, sizing pressure of 2.5 bar, and turbine pressure of 2.5 bar. At present, the process is applied to production, and a paint film formed by the process is excellent in performance which can reach requirements of mechanical equipment manufacturers.

Description

Travelling gear spraying coating process

Technical field

The present invention relates to a kind of travelling gear spraying coating process, belong to field of mechanical technique.

Background technology

Electrosilvering paint is a kind of novel metal paint in recent years occurred, has high glossiness, brightness and stronger metal-like compared with common metal colored paint, can improve the crucial appearance part of plant equipment significantly.At present, electrosilvering technique has started to be applied in plant equipment, but because electrosilvering paint solid content is low, thickness is thin, causes its anti-ability of injuring poor, become technological difficulties of restriction plant equipment production technology.

Summary of the invention

In order to realize the production of finish turning silver-electroplating wheel, the invention provides a kind of travelling gear spraying coating process.

Technical scheme of the present invention is: technological process is: and pretreatment → oven dry → end powder → solidification → online polishing → priming paint → sudden strains of a muscle do → and electrosilvering → sudden strain of a muscle does → transparency protected paint → solidification → finish turning → pretreatment → oven dry → transparent powder; Priming paint and electrosilvering construction parameter are: tell paint amount 80CC, atomizing pressure 2.5bar, fan-shaped pressure 2.5bar, and rifle is apart from 180mm, and the working viscosity of priming paint is 13 seconds; The THICKNESS CONTROL of transparency protected paint is at 10 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 60cc, shaping pressure 2.5bar, turbine pressure 2.5bar, static pressure 35kv, rifle is apart from 180mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 10 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 60 μm, and construction parameter is: telling dust cloud flow is 3.0m ³/ h, tells powder pressure 0.7bar, and static pressure is 40KV, and rifle is apart from 180mm; Condition of cure is that workpiece temperature 177 DEG C keeps 15 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 3.5 minutes, dodges dry 11 minutes between electrosilvering and transparency protected paint.Priming paint and electrosilvering use the spraying of regular air rifle, and its construction parameter is: tell paint amount 80-150CC, atomizing pressure 2.5-3.5bar, fan-shaped pressure 2.5-3.5bar, and rifle is apart from 180-250mm, and the working viscosity of priming paint is 13-15 second; The THICKNESS CONTROL of transparency protected paint is at 15 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 120cc, shaping pressure 3.5bar, turbine pressure 3.5bar, static pressure 50kv, rifle is apart from 250mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 15 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 90 μm, and construction parameter is: telling dust cloud flow is 4.0m ³/ h, tells powder pressure 0.9bar, and static pressure is 60KV, and rifle is apart from 250mm, and condition of cure is that workpiece temperature 177 DEG C keeps 18 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 4 minutes, dodges dry 13 minutes between electrosilvering and transparency protected paint.

This technique is applied to production at present, and its paint film property is excellent, all can reach the requirement of plant equipment producer.

Detailed description of the invention

Pretreatment → oven dry → end powder → solidification → online polishing → priming paint → sudden strains of a muscle do → and electrosilvering → sudden strain of a muscle does → transparency protected paint → solidification → finish turning → pretreatment → oven dry → transparent powder; Priming paint and electrosilvering construction parameter are: tell paint amount 80CC, atomizing pressure 2.5bar, fan-shaped pressure 2.5bar, and rifle is apart from 180mm, and the working viscosity of priming paint is 13 seconds; The THICKNESS CONTROL of transparency protected paint is at 10 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 60cc, shaping pressure 2.5bar, turbine pressure 2.5bar, static pressure 35kv, rifle is apart from 180mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 10 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 60 μm, and construction parameter is: telling dust cloud flow is 3.0m ³/ h, tells powder pressure 0.7bar, and static pressure is 40KV, and rifle is apart from 180mm; Condition of cure is that workpiece temperature 177 DEG C keeps 15 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 3.5 minutes, dodges dry 11 minutes between electrosilvering and transparency protected paint.Priming paint and electrosilvering use the spraying of regular air rifle, and its construction parameter is: tell paint amount 80-150CC, atomizing pressure 2.5-3.5bar, fan-shaped pressure 2.5-3.5bar, and rifle is apart from 180-250mm, and the working viscosity of priming paint is 13-15 second; The THICKNESS CONTROL of transparency protected paint is at 15 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 120cc, shaping pressure 3.5bar, turbine pressure 3.5bar, static pressure 50kv, rifle is apart from 250mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 15 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 90 μm, and construction parameter is: telling dust cloud flow is 4.0m ³/ h, tells powder pressure 0.9bar, and static pressure is 60KV, and rifle is apart from 250mm, and condition of cure is that workpiece temperature 177 DEG C keeps 18 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 4 minutes, dodges dry 13 minutes between electrosilvering and transparency protected paint.

Claims

1. travelling gear spraying coating process, is characterized in that: technological process is: and pretreatment → oven dry → end powder → solidification → online polishing → priming paint → sudden strains of a muscle do → and electrosilvering → sudden strain of a muscle does → transparency protected paint → solidification → finish turning → pretreatment → oven dry → transparent powder; Priming paint and electrosilvering construction parameter are: tell paint amount 80CC, atomizing pressure 2.5bar, fan-shaped pressure 2.5bar, and rifle is apart from 180mm, and the working viscosity of priming paint is 13 seconds; The THICKNESS CONTROL of transparency protected paint is at 10 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 60cc, shaping pressure 2.5bar, turbine pressure 2.5bar, static pressure 35kv, rifle is apart from 180mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 10 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 60 μm, and construction parameter is: telling dust cloud flow is 3.0m ³/ h, tells powder pressure 0.7bar, and static pressure is 40KV, and rifle is apart from 180mm; Condition of cure is that workpiece temperature 177 DEG C keeps 15 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 3.5 minutes, dodges dry 11 minutes between electrosilvering and transparency protected paint.

2. according to travelling gear spraying coating process according to claim 1, it is characterized in that: priming paint and electrosilvering use the spraying of regular air rifle, its construction parameter is: tell paint amount 80-150CC, atomizing pressure 2.5-3.5bar, fan-shaped pressure 2.5-3.5bar, rifle is apart from 180-250mm, and the working viscosity of priming paint is 13-15 second; The THICKNESS CONTROL of transparency protected paint is at 15 μm, cup spraying is revolved in transparency protected paint employing, its construction parameter is: tell paint amount 120cc, shaping pressure 3.5bar, turbine pressure 3.5bar, static pressure 50kv, rifle is apart from 250mm, and the condition of cure of priming paint, electrosilvering and transparency protected paint is: workpiece temperature 150 DEG C keeps 15 minutes; Transparent powder is acrylic powder, and the THICKNESS CONTROL of coating is at 90 μm, and construction parameter is: telling dust cloud flow is 4.0m ³/ h, tells powder pressure 0.9bar, and static pressure is 60KV, and rifle is apart from 250mm, and condition of cure is that workpiece temperature 177 DEG C keeps 18 minutes; Three layers, priming paint, electrosilvering and transparency protected paint employing " wet shot wets " technique, between priming paint and electrosilvering, flash-off time is 4 minutes, dodges dry 13 minutes between electrosilvering and transparency protected paint.