Professional caster manufacturers

Castor galvanized what method?

by:Dajin caster     2020-04-24
- - - - - - Adjust the foot - 【 Industrial casters 】 Universal wheel, adjust the foot manufacturer is well known, for castor galvanized is known to all is a layer of zinc on the surface of castor alloy plating and beauty, as well as the rust prevention is mainly the function of a surface treatment technology. But for castor galvanized also there are many kinds of methods, all kinds of galvanized method USES is not the same place. The following universal wheel is to introduce several methods of castor galvanized for everyone. 1, cyanide zinc plating as cyano ( CN) Is a highly toxic, so the environmental protection of castor hardware parts used in galvanized cyanide puts forward strict limits, constantly promote reduce cyanide and replace cyanide castor hardware part of the development of the electric system of zinc plating solution. Requires the use of low cyanide ( Micro cyanide) Castor hardware part of the plating solution. Adopting this process castor hardware part after plating products of good quality and especially the color plating after passivation colour can keep very well. 2, zincate galvanized zinc acid salt galvanized is evolved by cyanide zinc plating process, the current domestic formed two factions: (respectively 1) Wuhan material to protect the 'DPE' series ( 2) Radio and television of the 'DE' series of both belong to alkaline zincate galvanized additive; The PH of 12. 5 ~ 13. Coating for cylindrical lattice structure using this technology, good corrosion resistance, suitable for color galvanized. Typical formula: NaOH - - - - - - - 110~120g/l; 氧化锌, - - - - - - 11~12g/l; 94 - - - - - - - 5~7g/l。 For the product code is 'DPE - 94 Ⅱ 'and the combination of ethanol amine. Note: after the product out of the groove - > wash - > light ( Nitric acid + hydrochloric acid) — > wash - > passivation - > wash - > wash - > very hot dry - > drying - > aging treatment ( Oven within 80 ~ 90 oc) 。 3, chloride zinc chloride zinc plating technology application in castor hardware parts electroplating industry more extensive proportion is as high as 40%. After passivation ( Blue white) Zinc can generation chromium ( Equivalent to that of chrome plating) , especially after plus water soluble varnish, it is hard to recognize the layman is galvanized or chrome plated. This process is suitable for white passivation ( Blue white, silver) 。 When customer has no special requirements, it is best to choose silvery white passivation ( Colour and lustre is maintained relatively stable) 。 Typical formula: KCl - - - - - - - 180~220g/l; ZnCl - - - - - - - 65~75g/l; H3BO3- - - - - - - 25~30g/l( Buffer) ; The PH value of 5 ~ 5. 5; 以下 87 - - - - - - - 15~20g/l( Brightener) 。 4, sulfate zinc sulfate zinc plating for continuous plating ( Wire, strip, simple, rough large parts and components) Low cost. Typical formula: ZnSO4 - - - - - - - 300~500g/l; H3BO3- - - - - - - 25~30g/l; PH: 4. 5 ~ 5. 5; Sulfur, zinc - - - - - - - 15~20g/l( Brightener) 。 版权:www。 castercn。 Com to sum up, a variety of galvanized method in various fields effect is also different, so the choose and buy castor when considering the use environment of different choice of castor galvanized method is not the same. About castor galvanized still have what not understand place can consult technical personnel of the universal wheel.
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