Ichizhou 25x2-12 crmo, light and precision steel management weight table
Precision tubes are a high-precision steel tube material that is treated by cold extraction or heat roll。
The steam pipe, boiling water pipe and machine boiler used thermal steam pipe, the large pipe, the small pipe and the carbon-structured steel used in the accelerator tube, as well as the cold-deeped (trucking) seamless steel pipe。
Since the inner and internal walls of the precision steel pipe are not oxidized, subject to high pressure no leaks, high light purity, cold curves, extended mouths, flattening, and so on, products that are primarily used to produce gaseous or hydraulic components, such as gas cylinders or tanks, can be seamless pipes and welded receivers. The chemical components of the precision steel tube are carbon c, silicon si, manganese mn, sulphur s, phosphorus p and chromium cr。
Usual materials
The usual materials for precision seamless pipe are 10#, 20#, 35#, 45#。
There is much material that can be produced, and steel, as long as it is not hard, can be produced on an as-needed basis. For example: 10#, 35#, 16mn, 40cr
Production processes
Precision seamless pipes are usually produced by cold-rolling processes。
The processes are as follows:
Round steel piercing, sour wash, cold sawing, bundling
A sutureless acid wash, a cold saw, a bun
Characteristic advantages
Characteristics
1. High precision, which saves time spent on mechanical processing of user materials。
2. The specifications are numerous and are widely applied。
3. The cold rolled product is of high precision, surface quality and straightness。
The inner diameter of the tube may be hexagonized。
5. The tubes perform better and the metals are more dense。
Return fire: reheating the steel that has been gillled to a certain temperature and cooling it down in a certain way to be called a return fire. The aim is to eliminate the internal stress generated by gillfires and to reduce the hardness and brittle in order to achieve the desired mechanic performance. Fire return falls into three categories: high-temperature, medium-temperature and low-temperature. The fire is often used in conjunction with the fire, and the fire itself。
Revert the fire: heat the steel up to a certain temperature and keep it warm for a certain period of time, then cool it down slowly and become a retreat。
The repulsion of steel is a heat treatment method that heats the steel up to the temperature at which it occurs or is partially altered and cooled slowly after temperature protection. The purpose of the retreat is to eliminate organizational deficiencies, improve tissues to level the composition and finely refine the crystals, improve the mechanical properties of steel and reduce residual stress; at the same time, it reduces hardness, improves plasticity and resilience, and improves cutting processing performance. Thus, as part of the effort to eliminate and improve the organizational deficiencies and internal stress of the front-track process, as well as to prepare for the subsequent process, it is part of the semi-finished heat process and is pre-heated。
Decomposition treatment: thermal treatment of high-temperature backfires after gillfire is called modulation treatment, and high-temperature backfires are defined as a return fire between 500 ~650°c. The modulation allows steel to perform with good strength, plasticity and resilience, with good integrated mechanical performance. The physical properties of ultrasounds that enable the conversion between electrical and acoustic energy and the transmission of ultrasounds in elastic media are the basis of the principle of seamless ultrasonic sound detection of steel tubes, defects in the transmission of directed-launched ultrasonic beams in the tube, reflecting both the waves and the decay of the waves, as well as the transmission of signals through the sounding devices, such as the use of reflexes, the ability to obtain a sign of a convulsion, such as through penetrating wounds, and the ability to obtain a sign of defects by the degree of loss of the wave. Both can be quantified by instrument. A crosswave (or plate) reflection (or penetrator) and precision steel tubes are used for manual testing. An automatic or manual inspection shall be made of the entire surface of the tube. Note: precision tubes will not be effectively tested on both ends of the tube at the time of automatic inspection. This area should, however, be controlled within 200 mm, with measurements such as direct measurements, profile measurements and integrated measurements of the inner-controlled diameter of steel tubes and some mechanical components. Direct measurements (a variety of measurements are used, which are often used in the production and testing of our precision steel tubes). Using two or three points, the method of direct aperture measurement is also the usual method of aperture measurement, which, depending on the level of accuracy, size and quantity of the measured aperture, can be used either through the length measurement tool, or through the aperture measurement tool。
The distinction between cold and ejaculation tubes
It's an ordinary carbon steel cryobaric tube, with the same size precision, and the tubes that are produced can be used in mechanical structures, fluid transport, etc.
You're talking about a piping tube that's more precise in size than an ordinary cold piping tube, but it's less efficient, so the piping is relatively expensive.
If you want to distinguish between these two tubes, it's mainly from the accuracy margin... And the surface mass, which is relatively bright.
And there's a tube, which is precise in size, which is a crumb, which is usually used on aerodynamics, hydraulics.
Ichizhou 25x2-12 crmo, light and precision steel management weight table
