Large three-way valve

In aluminum processing, the Large three-way valve wastewater treatment system includes an automatic acid addition system, an automatic alkali addition system, an automatic pH detection system, and an automatic discharge system for qualified wastewater. It should also be explained here that the sodium hydroxide used between the molds is solid caustic soda, which has a high cost.

Since there is no operation process to follow, the addition of caustic soda and the discharge of the bath are arbitrary, and sometimes it is caused by the bath. The phenomenon that the concentration is oversaturated and part of the caustic soda is not dissolved. This not only caused waste, but also increased environmental pollution.　　

After the completion of the new mold room, the alkali used for cleaning the mold was changed from flake caustic soda to the liquid caustic used in the oxidation production line, which not only reduced the cost, but also was convenient to operate, with accurate dosage and no waste.　　 The mold room is built outside the oxidation workshop near the water treatment area. There are two mold washing tanks in it, and the tank liquid is sodium hydroxide solution.

When the aluminum ions in the bath exceed the standard, they are discharged to the waste alkali storage tank in the basement or neutralized by air agitation. In the original design of extrusion production, there is no design process and operating procedures for mold cleaning. It is based on experience. Because there is no requirement for process parameters, a large amount of alkali waste and environmental pollution are caused.　　Building the profile mold room near the oxidation production line, and comprehensively treat the waste water and oxidation waste water produced by it, which saves money and is conducive to environmental protection. It is an effective treatment method.

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Infusion three-way valve

 Electroforming electrode The tool electrode used for EDM can be manufactured by the electroforming method. Tianjin Science and Technology Press, 1982 4 Xiao Jingrong et al. The section of the processing process 2 has a fixed slope and a large diameter of tens of microns and a hole depth of several millimeters. Nowadays, nickel sulfamate plating solution and rapid electroforming deposition process are generally used in China, and an appropriate amount of additive activator Infusion three-way valve is added to improve the degree of electroforming layer to 0.

The application of electroforming technology in the injection mold manufacturing of the National Nine Scientific and Technological Research Projects recently completed by the Fujian Light Industry Research Institute has produced high-quality mirror cores that meet the requirements of optical mirrors, and pressed optical plastic products. After filling the back of the copper shell with a solid material liner, it can be used as When using injection molds, sometimes in order to facilitate demolding, a silicone rubber mold can be used for transition.　　

The method of demolding depends on the material of the original mold. That is, the conductive original mold is used as the cathode, the metal used for electroforming is used as the anode, and the metal salt solution of the electroforming material is used as the electroforming liquid.1, a variety of injection molds with complex curved contours or fine dimensions, electrodes for EDM cavities, and other metal parts □ Electroforming mold cavities require complex shapes and high precision injection mold cavities, using traditional The processing method is very difficult. Plastic mold technical manual

. The height of the straight edge is small.Principle of Electroforming Electroforming uses the phenomenon of cathode deposition in the electrochemical process to perform forming processing. When the electroformed layer on the original mold reaches the required thickness, it is taken out, and the electroformed layer is separated from the original mold to obtain an electroformed part opposite to the original model. 13 new type 2 electroforming technology made up for the defects of conventional electroforming mold cavity. Commonly used metal materials for electroforming are copper, nickel, iron, and the corresponding electroforming solution has copper, 

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