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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Quick-drying sand core sand binder for casting to improve efficiency

Quick-drying sand core sand binder

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The quick-drying adhesive is a room temperature quick-drying adhesive that is very suitable for combined installation between complex cores after molding. At room temperature, the tensile strength can reach more than 0.4 MPa in 10 minutes, the tensile strength can reach more than 0.6 MPa in 15 minutes, the tensile strength can reach more than 1 MPa in 20 minutes, and the final tensile strength can reach 4 MPa.

product name: Quick-drying adhesive

Product performance: The appearance of this product is milky white viscous paste, with the following excellent features:

1. High-quality features such as fast hardening speed, high end strength, and small air volume;

2. Overcome the shortcomings of traditional adhesives such as long drying time and high curing temperature;

3. Meet the needs of timely assembly and timely core loading after the efficiency of the hot core box and cold core box core making process has been greatly improved, which greatly shortens the time for core assembly and installation to meet production needs;

4. The time from core assembly to casting is greatly shortened, and the casting production efficiency of the enterprise is greatly improved.

product manual: R&D background of this quick-drying adhesive:

In casting production, castings with complex structures such as internal cavities and reinforcing ribs or large-sized castings often require multiple sand cores to be manufactured separately, and then assembled and assembled to form an integral core before casting; Sometimes in order to facilitate the operation of core making and lower core forming, it is also necessary to manufacture the sand cores in blocks, and then combine and install them. The combination of the above-mentioned sand cores is often bonded with adhesives. With the emergence of hot-box and cold-box core-making processes, the core-making efficiency has been greatly improved. Many core-making machines are often matched with the production capacity of molding machines. This requires timely assembly, timely core removal, and core assembly installation. time

Need to be as short as possible to meet production needs.

Product comparison: The various traditional adhesives currently in use have more or less limitations, mainly in:

Traditional adhesives need to be naturally dried for 4-8 hours before they can be used for casting, and the production efficiency is low; at the same time, the bonding temperature is high, heating is required, and energy is wasted. At the same time, the temperature rise and fall process also takes a long time, which is not conducive to production efficiency. Improve; 2. Even some quick-drying adhesives still have the following shortcomings:

(1) The hot melt adhesive melts and becomes liquid when heated, and becomes solid again when cooled; it will be heated to liquefy when used

(2) Two-component milky white glue can only be used to bond foam plastic molds and wood in solid casting, and needs to be packaged and supplied separately, and the two components are used at the same time during use

Therefore, with the improvement of casting molding and casting efficiency, there is an urgent need for a quick-drying adhesive with a shorter drying time and higher strength. Shengping series of quick-drying adhesives came into being.

Product packaging: Bottled with 0.5kg/piece, each box of 36 pieces has a net weight of 18kg;

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The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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