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Faucet production process

Date:2016-08-12

Faucet production process consists of four parts,casting,mechanical processing,surface treatment,and assembly.

1.Casting process

Casting process


2.Machining

get the brass casting after annealing, using CNC numerically-controlled machine tool and other machine tool to process the brass casting,to make it’s dimensional,accuracy,and position meet drawing requirements.

machining

Proceed polish,take outrags,rough surface and potholes on surface,make the product surface have no obvious sand holes and hole defect after completion of machining. Grinding polishing processing, after polishing,use high-speed rotating wheel to grinding workpiece surfaces, make it smooth and bright, increase the brightness of product surface.

polishing


3.Surface treatment.

Surface treatment technology mainly include PVD (Physical Vapor Deposition), ORB (Oil Rubber Bronze),electroplating plating etc., most widely used is electrochromism.Electroplate can enhance corrosion resistance of faucet, increasing hardness, prevent abrasion, surface beauty. Most common is hexavalent chromium electroplating,now green trivalent chromium plating is rising. Electroplating can be divided into three layers,first layer acid copper plating,second nickel plating and three chrome plated. International standard of faucet electroplating thickness is 8 microns, the best can reach 12 micron.


Plating surface treatment can be used 24 hours acetic acid salt spray test to judge quality, and can use layer thickness meter to authenticate each metal coating thickness.Usually if coating thickness can reach standard,salt spray test can pass. Electroplating is big pollution and big energy consumption,general faucet factory have to send faucets to professional electroplating factory to plating, thereby increasing production time and difficulty of control.

electroplate

For direct drinking water faucet, need lead washing treatment after plating processing,get rid of the lead on faucet surface. After secondary water washing,chemical degreasing, de-lead by alkaline and acid, make our products conform to the American NSF61,lead content under 8 ‰, make product more conducive to human health. (2015 AB1953 regulation is more strict).

lead washing treatmen

4.Accessories process

For the shaft,screw nut,screw etc., which used for faucets, need to forge and press from copper bar into copper pieces, and then Processing thread according to the need by machining technician,commonly known as tapping.

taping


5.Assembly

After faucet castings pass the test after plating, then into the assembly process. Assembly is the processing that contect faucet components according to certain order and technology,become a complete set of faucet products, and realize the function of product design process reliably.

assembly


Need to proceed water testing and pressure testing in assembly,on 1.6 + / - 0.05 Mpa to test 60 + / - 5 seconds,to ensure no leakage,after pass testing,send to assembly line to install cap,handles,hot and cold water mark,finally install accessory parts,wipe and packing.

testing


6.finished product inspection

After faucets into the warehouse storage, FQC will take sampling inspection,inspection item including:casting surface bright and clean,screw thread surface, appearance quality, assembly in place without loose, signs is complete, sealing test pass, faucet sealing performance test, etc. After the product inspection had pass,a faucet can leave the factory.



ALL in ALL


1.Each products are subject to stringent water tightness and air tightness test to ensure no leakage. Pressure test with the highest standards of domestic 1.6 MPA

2.   The production process:

(1)  Dissolution of copper ingots→casting cast product after the clean-up→Machining→Test→Test→Test→polishing→polishing→Test→Test→assembly→plating→→packaging→factory inspection;

(2)  Brass rod→Machining→test→Welding→test→test→abrasive polishing Electroplating→test→test→test→assembly→→factory packaging.

3.   Every employees undergo strict training. Imported from Germany in the production of advanced testing equipment inspection ,as you create the perfect inside and outside taps.

4.   Life of long-term surface treatment :plating tap international industry standard is 8 microns , and the standard surface plating of 10 microns , with a durable wear-resistant, anti-scratch and other functions , plating the surface smooth as a mirror


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