Carbide cutting machine blade introduction:
Commonly known as the cutting machine blade, also known as the cutting machine blade, cutting the knife. Because the shape is circular, it is also called a disc cutter. It is mainly used for cutting the lead legs of electronic circuit boards on the cutting machine.
Composition structure
The specifications of the cutting machine blade are mainly Φ250×Φ70×3.5 and Φ200×Φ70×3.5, which is also commonly known as 10 inch and 8 inch. Its main material is cemented carbide. The main component of cemented carbide is tungsten carbide, which is also called tungsten steel, so it is also called tungsten steel cutting machine blade. As a high hardness, high strength, wear and corrosion resistant material, cemented carbide is widely used in the cutting tool manufacturing industry. Due to the high brittleness of the cemented carbide, it is not possible to directly perform the cutting process, and it is difficult to form a whole-tool with a complicated shape. Therefore, the blades of different shapes are often formed, and are mounted on the cutter body or the mold body by welding, bonding, mechanical clamping, or the like. use.
Development and application
Along with the extensive development of the electronics industry, the market demand for printed circuit boards, the generation of cutting machine blades is also a development of cutting tools. There are two main types of board production: one is a soldering foot with a plug-in, and the other is a direct-formed patch. Due to the high-end production equipment required for the production of the patch form, the required investment is relatively high, and most of them still use the cutting machine blade cutting insert.
The soldering pins of the circuit board with plug-ins are also thick and soft, and the performance requirements of the cutting machine blades are different for different operation requirements. Of course, the cutting performance is also related to the cutting machine itself. Along with the continuous development of China's cemented carbide related materials, the market will have higher requirements for cutting machine blades to meet the objective needs of the development of the electronics industry.
Use and attention
Carbide has brittle characteristics, improper use or mishandling, which often causes accidental damage to the blade. In severe cases, it may cause dangerous accidents. For the correct and safe use of the cutting machine blade, the following precautions must be strictly observed (by Zhuzhou Sanxin Hard) Quality Alloy Production Co., Ltd.):
1. Hearing check: Before the blade is installed, use a finger to hook the blade to hang. Use a wooden hammer to gently tap a few blades and listen to the sound. If there is a murmur, there is often a crack. This kind of blade should be forbidden to avoid accidents!
2. Operating speed: The working speed of the cutting machine should be limited to 4,500 rpm.
3. Blade installation: The rotation axis and the center of the blade need to be accurately aligned. After the blade is installed, there must be no slanting. The blade should be carefully cleaned with the blade and the mechanical mounting surface. No cutting material, dust or other debris can be left. Fixed blade.
4. Install the guard: The shield must be installed before the blade is operated (the baffle, steel plate, rubber and other protective equipment should be installed around the blade studio).
5. Test machine: After the blade is installed, it should be operated for 5 minutes. If you observe it carefully, vibration or other abnormal sounds are absolutely not allowed. If it is, stop it immediately and check the cause before use.
6. Blade storage method; it is strictly forbidden to write or mark on the blade by electric engraving or other scratching method. The blade edge is sharp, but it is very brittle, avoiding the blade being hit. The blade to be used should be stored properly. Do not put it on hold. .
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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