Anticorrosion painting process for valve applied in sea water desalination treatment
A coating process and valve technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of poor anti-corrosion coating and poor coating process, and achieve good coating quality and meticulous process steps , the effect of firm adhesion
Active Publication Date: 2014-06-04
浙江坤博精工科技股份有限公司
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Problems solved by technology
[0004] The primary requirement for valves used for seawater desalination is that the valves have good anti-corrosion performance and can withstand the corrosion of seawater during work. At present, the anti-corrosion coating of this kind of valves is relatively poor, and the process of coating is not good.
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[0032] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0033] Such as figure 1 As shown, valve workpieces include castings and steel plates. This anti-corrosion coating process includes the following steps:
[0034] Step 1. Pretreatment before painting: Grinding, fine shot blasting, blowing off surface dust on castings, chamfering, deburring, fine shot blasting, cleaning oil stains on steel parts, grinding the finished surface rough with grinding wheels, Blow off surface dust;
[0035] Step 2. Primer: Prime the casting within 1 to 3 hours after fine shot blasting, and prime the steel plate within 1 to 3 hours after grinding with the grinding wheel, and mix the primer with curing agent and thinner Cooperate with stirring, and paint castings and steel plates within 1 to 3 hour...
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The invention provides an anticorrosion painting process for a valve applied in a sea water desalination treatment, which belongs to the technical field of a painting process. The anticorrosion painting process solves the problems of poorer quality of painting on the valve and the like existing in the prior art. The anticorrosion painting process comprises the following steps of: firstly, pre-treating before painting; secondly, painting primer; thirdly, repeatedly painting primer; fourthly, detecting the painting quality of the primer; fifthly, painting intermediate coat; sixthly, repeatedly painting intermediate coat; seventhly, detecting the painting quality of the intermediate coat; eighthly, painting finish coat; ninthly, repeatedly painting finish coat; and tenthly, detecting the painting quality of the finish coat. The anticorrosion painting process has fine steps and a better painting quality, the painting is more uniform and has a firm attachment. According to the anticorrosion process, the pretreatment of multiple steps for a workpiece is carried out before painting, and the painting quality is increased.
Description
technical field [0001] The invention belongs to the technical field of coating technology, and relates to an anti-corrosion coating technology for valves used in seawater desalination treatment. Background technique [0002] Seawater desalination is the use of seawater desalination to produce fresh water. It is an open-source incremental technology to realize the utilization of water resources. It can increase the total amount of fresh water without being affected by time, space and climate. The water quality is good and the price is becoming more and more reasonable. It can ensure stable water supply such as drinking water for coastal residents and supplementary water for industrial boilers. The process of obtaining fresh water from sea water is called desalination. Currently used seawater desalination methods include seawater freezing method, electrodialysis method, distillation method, and reverse osmosis method. At present, the reverse osmosis method using reverse osmos...
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IPC IPC(8): B05D1/38
Inventor 厉全明吕建初罗鑫磊
Owner 浙江坤博精工科技股份有限公司