What materials are commonly used for mold blanks? Answer: 45 # steel is commonly used for mold blanks.What is the difference between working in CAD drawing model space and layout space? Answer: Model space is the space for graphic entities, while layout space is the space for drawing layouts.3. What is polishing? What are the commonly used polishing methods? Answer: The action of improving the surface smoothness of the mold core is called polishing. The commonly used polishing methods include mechanical polishing; There is chemical polishing; There is electrolytic polishing; Ultrasonic polishing is available; Fluid polishing; There are methods such as magnetic grinding and polishing.What is the function of water transportation? Answer: The function of transporting water is to control the temperature of the mold core.5. What is a mold? Answer: In industrial production, various press machines and specialized tools mounted on the press machines are used to produce parts or products of the desired shape from metal or non-metal materials through pressure. These specialized tools are collectively referred to as molds.6. Classification of molds? Answer: Molds can generally be divided into plastic molds and non plastic molds. Non plastic molds include casting molds, forging molds, stamping molds, die-casting molds, etc. Plastic molds are divided into injection molding molds, blow molding molds, compression molding molds, transfer molding molds, extrusion molding molds, thermoforming molds, rotary molding molds, etc. according to different production processes and products. According to the different casting system types, molds can be divided into three categories: large spout molds, fine spout molds, and hot runner molds.What is reverse engineering? Answer: Reverse engineering is the process of using a high-speed 3D laser scanner to accurately and rapidly scan existing samples or models, obtaining their 3D contour data. With the help of reverse engineering software, the reconstructed surfaces are subjected to online accuracy analysis and evaluation of the construction effect. Finally, IGES or STL data is generated, which can be used for rapid prototyping or CNC machining.What is an exhaust duct? What is the function of the air distribution trough? Answer: The groove on the worn or scraped surface of the mold used for exhaust is called the exhaust groove. The main functions of the exhaust groove are twofold: firstly, to eliminate the air inside the mold cavity when injecting molten materials; The second is to eliminate various gases generated during the heating process of the material.What is a pouring system? Answer: The plastic flow channel from the injection nozzle to the mold cavity is called the pouring system. The pouring system includes a main channel, a diversion channel, a sprue, and a cold material well.10. The advantages and disadvantages of hot lips. Answer: Advantages: 1 No water mouth material, no need for post-processing, making the entire molding process fully automated, saving work time, and improving work efficiency. 2. Low pressure loss. 3. The repeated use of nozzle materials will degrade the performance of plastics, while the use of hot runner systems without nozzle materials can reduce the loss of raw materials and thus lower product costs. 4. The hot nozzle adopts standardized and serialized design, equipped with various selectable nozzle heads, and has good interchangeability.
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