Recently, a customer asked us if we didn't use it for a long time Electroplating equipment , what we need to do. We think this question is very representative, so let our electroplating equipment design engineer make a special answer for your reference.
There are now two types of electroplating equipment for nine plastics. One is a manufacturer of ordinary plastic electroplating equipment. This technology is applicable to ordinary plastics. It retains the advantages of plastics, but has poor dimensional accuracy and is difficult to coarsen. In China, it was once thought that plastic was not suitable for electroplating, that is, this kind of plastic. In fact, even ordinary plastics can be successfully electroplated as long as the key points of the process are mastered. The other is electroplating grade plastics. The improved plastic was specially designed for electroplating in the 1970s and 1980s, but there is no such plastic in China. At that time, the so-called modified polypropylene was not modified by electroplating and could not be electroplated into electroplating grade plastic. The improved method is to add inorganic filler into the plastic. According to the different properties of filler, the shrinkage, adhesion, coarsening rate and appearance quality are improved.
If the electroplating equipment needs to be used for a long time due to some reasons, some maintenance work should be done to avoid idle electroplating equipment and shorten the service life of electroplating equipment. The main tasks are as follows:
1。 Clean the workshop, try to be free of water and dust, and ensure that the workshop environment is clean and dry;
2。 All motors are protected with fresh paper.
3。 All bearings are filled with grease to prevent rust.
4。 All rubber wheel bearings on the crane are filled with grease to prevent rust.
5。 The lifting belt of the crane shall be tightly wrapped with fresh-keeping paper to prevent the aging car from spraying oil. All parts of the juvenile parts shall be protected with fresh-keeping paper.
6。 All drugs in the pipeline shall be cleaned.
7。 Filter shall be used to clean persimmon solution.
8。 Remove the filter element and thoroughly clean it.
9。 The solenoid valve, pressure valve and flowmeter in the pipeline shall be wrapped with fresh paper.
10。 Remove all heaters from the water tank and thoroughly clean them.
Generally speaking, when the shape of the filler is amorphous, the smoother the surface is. The particle size of filler should preferably be in the range of 0.55 ^ 111. The added scale also varies from 105 ^ 40 ^. Therefore, the roughening process of electroplating equipment also needs different changes. Most of them are temperature, time and roughening liquid composition.
9 Precautions for Electroplating and Polishing Operation of Electroplating Equipment
① Extract the wheel to be polished and check whether the wheel appearance identification is consistent with its defects (pitting, pinhole, missing plating, insufficient brightness, inexhaustible wax removal, blistering, peeling, sanding, edge burning, poor displacement, bruise, sanding, roughness, deformation, etc.).
② The process shall be divided according to the flow chart, and the flow line operation (referring to copper billet) is shown in the flow line operation table
③ When grinding, cloth drilling wheel or angle grinder is polishing, the wheel should be placed stably. It is forbidden to press the power line on the wheel to prevent electric shock accidents.
④ For grinding, select the sand piece with the specified specification first, stick it firmly, grasp the wheel with one hand, rotate the wheel with one hand, grasp the grinder with the other hand, and grind back and forth freely without excessive force until there is no coating appearance defect.
⑤ For the cloth drilling wheel, both hands are required to hold the air mill tightly, and the wax is evenly applied to make it slightly contact the working face. High speed polishing is required, and no heavy pressure is allowed; The price of electroplating equipment shall be based on the shape and size of the polished part, and the cloth wheel heads with different sizes and tapers shall be selected; The cloth drilling wheel is mainly at the angle between the spoke and the rim (other tools cannot polish or grind in place, which cannot reach the electroplating standard before nickel) and the upper part of the PCD hole (bolt hole).
⑥ When polishing the angle grinder, both hands should hold the angle grinder tightly, and wax should be evenly applied. After polishing, the polishing data should leave the wheel surface, rotate the wheel with one hand to the part to be polished, and then both hands should hold the angle grinder tightly to polish the part to be polished. The polishing machine shall not be overloaded. It is not allowed to press the polishing abrasive vigorously for polishing. Instead, it is allowed to wax evenly, place the polishing abrasive lightly against the part to be polished, and move back and forth easily.
Electroplating equipment PP modified plastic is the abbreviation of polypropylene. This is a new type of plastic that was developed in the 1960s as a high molecular polymer (with a relative molecular weight of more than 83) after cracking oil and natural gas to produce propylene and then polymerizing with catalyst. Its main characteristics are that its relative density is small, only 0.90.91; Good heat resistance, can be used above 1001, 1501 will not deform with or without external force; Good drug resistance; High frequency electrical performance is excellent; Water absorption is also very low. Therefore, it has a wide range of industrial applications. It can be made into various containers, as well as container lining, coating, mechanical parts, flanges, auto parts, etc. The disadvantages are high shrinkage rate, easy shrinkage depression at the wall thickness, high brittleness at low temperature, etc.
