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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

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

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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