Do you know what factors affect the machining speed of spark forming in plastic mold factory? Today, I'd like to talk about the factors affecting the machining speed of spark forming.

Influencing factors of EDM speed in Guangdong plastic mould factory

1. Polarity effect the phenomenon that the positive cathode is different and the corrosion amount of materials is different is called polarity effect.

(1) Positive electrode processing: when using short pulse processing, the electron bombardment is greater than the ion, the corrosion of the positive electrode is large, and the workpiece is affected by the positive electrode. Short pulse is smaller than 40 microseconds, with high surface quality and low efficiency. It is used for finishing.

(2) Cathode processing: when using wide pulse processing, the cathode production is greater than the cathode, and the workpiece needs to be connected to the cathode. The long pulse is larger than 300 microseconds, with low surface quality and high efficiency. It is used for rough machining.

2. Pulse parameters the greater the pulse amount, the more heat transferred to the workpiece, and the greater the corrosion amount. The total erosion amount of positive electrode (or cathode) in unit time is q = QTF = kwft. Measures: increase the average discharge current, reduce the pulse interval, increase the pulse frequency, and reasonably select the working parameters.

3. With the increase of pulse width, the sugar production increases, but the pulse width is too short, the heat is too concentrated, the proportion of metal gasification increases, the energy of each part of gasification heat is consumed, and the sugar production decreases. The pulse width is too long, the heat loss through conduction is too high, and the amount of corrosion is reduced.

4. The higher the melting point, boiling point, specific heat capacity, melting heat and gasification heat of the material, the less food in the early stage and the greater the difficulty of processing. The higher the thermal conductivity, the faster the heat conduction loss, so as to reduce the amount of self corrosion.

What is the polishing technology of Guangdong plastic mould

With the increasingly wide application of plastic products, such as daily chemical products, beverage packaging containers, etc., the necessity of appearance often requires the surface of plastic mold cavity to achieve specular luster. The production of optical lens, CD and other molds has high requirements for surface roughness, so the requirements for gloss are also high. Gloss can not only improve the beauty of the workpiece, but also improve the corrosion resistance and wear resistance of the material surface, but also provide other advantages of the mold, including easy hair loss plastic products and reducing the production and injection cycle. Therefore, gloss is a very important process in the manufacturing process of plastic mold.

What is the mechanical polishing of plastic molds in Guangdong

Plastic molding machine polishing is a polishing method to remove the bumps completed by processing and plastic deformation on the material surface, so as to obtain a smooth surface. This method is commonly used in polishing technology.

Machine polishing is a polishing method to remove the bumps completed by cutting and plastic deformation on the material surface and obtain a smooth surface. Generally, oilstone rod, wool wheel, sandpaper, etc. are mainly manual. Special parts can use rotating table and other auxiliary tools like the surface of rotating body. When the surface quality requirements are high, polishing method can be used. Grinding is to use special abrasive. In the abrasive fluid containing abrasive, the workpiece is firmly pressed on the machined surface for high-speed rotation. The surface roughness of 0.008m can be achieved by using this technology, which is efficient in various finishing methods. This method is often used in optical lens molds.