1. 24 kinds of materials commonly used in machinery and mold processing 45 - high-quality carbon structural steel, which is the most commonly used medium carbon quenched and tempered steel Main features: The most commonly used medium carbon quenched and tempered steel, with good comprehensive mechanical properties, low hardenability, and easy cracks when water quenching. Small parts should be quenched and tempered, and large parts should be normalized.
Aluminum plate is one of the commonly used mold aluminum plates, belonging to aluminum-magnesium-silicon alloy, adding silicon elements to the alloy can make the aluminum alloy have better castability and corrosion resistance, aluminum-magnesium-silicon three elements according to a certain proportion of the formation of the alloy has better performance, is one of the main materials for manufacturing high-end precision molds.
3. Selection of deep-drawing die materials: Alloy cast iron composition: C3%, Si6%, Cr4%, Mo4%, and the friction surface is flame quenched. The alloy cast iron is of the same composition, only the friction surface flame quenched to <420HB punch material, except for the alloy cast iron, it is best to plate chrome.
4. You can use nak80 for the main material, and use 45 steel materials for inclined tops, inserts, sliders, mold bases, etc., and the mold base can not be used with such good materials.
5. Seek a list of commonly used machining material names and properties of plastic mold steel 2010-03-011 on my personal experience, say a few commonly used it, I hope it will be useful to you: 45 - high-quality carbon structural steel, is the most commonly used medium carbon quenched and tempered steel.
1. There are more than 300 records of aluminum formwork used in the United States, and the more turnover, the better the economy. Wide range of applications Aluminum alloy building formwork is suitable for the use of walls, columns, beams, horizontal floors, stairs, window sills, floating boards and other positions.
2. Disadvantages of aluminum mold: it needs to be customized, it is not suitable for complex and changeable structures, and it is cost-effective for high-rise buildingsIf it is used in the middle and low layers, the comprehensive cost is higher;During the construction process, there will be a lot of noise. The material is bulky and difficult to handle.
3. The cost increases, and the one-time project investment is large. Even if it is leased, the cost is very high. After deformation, it cannot be repaired, and it is inconvenient to repair, and generally small deformation will cause large objects to be harmed. Employees must have relative construction technology, otherwise the efficiency is not high, and the actual effect is poor.
4. Compared with steel molds, aluminum alloy molds have the following advantages: Because the thermal conductivity of aluminum is 4 to 5 times better than that of steel, the cooling effect of aluminum alloy molds itself is naturally better than that of steel molds, which makes the location and quantity of cooling pipelines of aluminum alloy molds relatively less important than steel molds.
5. Disadvantages: Margin, the oblique head and tail of the product account for 12%-15% of the whole batching, so the material utilization rate is low Compared with the rolling process production, the production efficiency is low Forward extrusion, the blank and the inner hole wall of the extrusion cylinder have friction, that is, the energy consumption is more, and the quality of the product is affected at the same time.
6. Disadvantages: High initial cost: Compared with traditional wooden formwork, the initial cost of aluminum alloy formwork is higher. The coating is easily damaged: the surface coating of the aluminum alloy template is easily damaged, and it is necessary to pay attention to protection during use.
The processing of aluminum alloy formwork is difficult and requires professional equipment and technical support.