The secret of the faucet production process

Update:17 Jun 2020
Summary:

1. Faucet casting process: firstly on the active hot co […]

The secret of the faucet production process

1. Faucet casting process: firstly on the active hot core box core shooter, the output sand core is prepared for use, and the copper alloy is smelted (melting equipment resistance furnace). After the copper alloy reaches a certain melting state, chemical analysis and sampling of copper alloy test blocks are carried out , Sent to the laboratory for chemical titration analysis or spectroscopic analysis, after confirming that the chemical composition of the copper alloy meets the requirements, pouring is carried out (the casting equipment is a metal-type gravity casting machine), and after cooling and condensation, the mold is opened to discharge the finishing riser, and the resistance furnace After all the copper water is poured, the cooled casting blanks are self-inspected and sent to the sanding machine drum for ceramic sand finishing. The next step of heat treatment of casting blanks (stress annealing) is intended to eliminate internal stresses that occur during casting. Put the blank into the shot blasting machine to smooth it to the more aspiring casting blank, and ensure that the inner cavity is not attached with molding sand, metal shavings or other impurities. Then, the casting blanks are completely closed, and the air is tested in water to seal the shell and the tightness of the separator.

2. Faucet machining process: In order to meet the frequent assembly and disassembly and repetitive batch faucet processing, it is necessary to manufacture auxiliary tooling fixtures and mold cutting tools to prepare for various processing requirements. First select the jig tools and workpieces for mold adjustment and trial processing. After passing the first inspection, the products are officially produced in batches. During the process, the operator conducts self-inspection, the inspector patrols the inspection, and completes the inspection after completion. Only qualified products can flow to the next process Conduct a pressure test check. On the pressure testing machine, the sealing shell is fed with 0.6Mpa of air pressure, and the faucet shell is immersed in water to investigate whether the sealing function of each connection part of the shell and the cavity meets the requirements. All the qualified products are subjected to lead release treatment to eliminate trace lead elements in the surface quality of the inner cavity, so that the faucet products are more in line with the environmental protection goals of low toxicity and less harmful requirements.

3. Faucet polishing process: the first thing is to prepare polishing things, abrasives and abrasive belts, and do the job of adjusting the machine. Carry out rough grinding of the faucet to remove the rough surface and potholes of the faucet, and then use in-process grinding to grind the appearance and trim the outline; then three grindings are made to make the appearance more ambitious and the lines clear, Well-balanced structure.

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