2023年4月10日星期一

Protective Measures for Weakness of Stainless Steel Tee

 1. Strictly control the quality of raw materials, starting with the material of pipes.

  Strict on-site inspection of stainless steel pipe and Stainless Steel Tees. To ensure that the material meets the requirements. Considering both economy and function in material selection, under special operating conditions, austenitic stainless steel, duplex stainless steel, titanium and titanium alloys, glass fibre reinforced plastics with stronger corrosion resistance .

  When choosing materials, the corrosion margin of pipe and High quality Seamless Stainless Steel Tee should be increased to meet the service life requirement of pipeline system.

  2. Surface Coating Protection

  At present, in view of the corrosion situation ofStainless Steel Tee pipeline under the environment, besides choosing the material with strong corrosion resistance, it can also improve the corrosion resistance by coating the surface of Stainless Steel Tee. Aiming at the problem of smooth surface of Stainless Steel Tee base material and poor adhesion of conventional stainless steel anti-corrosion coatings for different diameter pipes, an effective anti-corrosion coatings for stainless steel in marine environment, epoxy powder coatings, has been developed. The coating is a new type of coating which is completely solvent-free and sprayed in the form of powder.

Connection mode of stainless steel tee

 Stainless steel tees can be divided into equal diameter and reducing diameter. The size of the main pipe and nozzle end of equal diameter tees is the same, the size of the main pipe and nozzle of different diameter tees is the same, and the size of the nozzle of branch pipe is smaller than that of the main pipe.

  Stainless steel tee has various connection methods, such as clamping, welding, grooving, ring pressure, etc. different connection methods can also be firmly connected to prevent pipeline looseness and water leakage.

  Among them, the advantages of double clamping connection method are relatively prominent, the cost of pipe fittings is relatively low, there is no need to use open fire for installation, so as to protect the safety of the construction site, the connection of pipe fittings is firm and sealed, and the connection technology is mature and stable.

Application of stainless steel socket flange

  Stainless steel socket flange generally has a strong sealing, tensile, bending, compressive and so on, according to a variety of properties, stainless steel flange can also be divided into blind flange, weld neck flange, socket flange, plate flange, threaded flange and so on, each kind of stainless steel flange has its own product parameters.

  Stainless steel socket flanges: commonly used in pipes with PN less than 10.0Mpa and DN less than 40.

  In addition, the installation process of ANSI B16.5 Calss 900 Stainless Steel Socket Flange must be professional, usually first joint positioning, installation of sealing ring, sealing sleeve inside and sleeve cone hole. Install the card sleeve and grease the contact part between the sleeve and the cone cone for easy installation. To install bolts and spherical nuts, grease should be applied to the spherical surface and threads for installation, etc. Finally, after installation, the ends of the two joints should be in close contact with the ribs of the sealing ring without any clearance.



What are the advantages of stamping stainless steel elbow

 1. Stamping stainless steel elbow is relatively efficient in production, and can also achieve full mechanization and automation. Of course, this is due to the relationship between stamping die and stamping equipment.

  2. The production of stamping stainless steel elbow is relatively energy-saving, and no other heating equipment is required in the production.

  3. It is widely used, ranging from mechanical equipment to engineering construction.

  4. Stamped stainless steel elbow is stable in quality and not easy to be damaged.

  Stamped stainless steel elbow should be welded differently according to different materials in the process of manufacturing, and this process can only be used under pressure.

Several key factors for judging the quality of steel shot

 Today we are going to share some factors for judging the steel shot.

  Hope it can help in your daily work.

  1. Visually inspect the number of hollow cores: If you can see several hollow shots or more at a glance, then the steel shot is normal or not up to standard.

  2. Observe the number of special shapes: at a glance, you can see many conjoined particles or long, tailed ones. Such steel shots will have a negative impact on the quality of the metal surface.

  3. Check the cleanliness of the surface of the steel shot: grab a hand, and the palm of the hand is still clean and free of dust or rust after rubbing it hard, indicating that the surface treatment of the steel shot is better.

  4. Check whether there is any foreign matter in the steel shot, such as steel slag, sawdust, rust, stone, too large or too small pellets, etc.

  The above points are the key factors affecting the consumption of steel shots. In view of the fact that most customers cannot carry out the chemical detection of trace elements, in order to facilitate the simple identification of the pros and cons of friends, we just made a summary of the macroscopic points. Please forgive me for impropriety.



What is Sandblasting

 Sandblasting is used for complex shapes, easy to remove by hand, low efficiency, poor on-site environment, and uneven rust removal. The general sand blasting machine has various types of sand blasting guns. As long as it is not a particularly small box, the gun can be put in and cleaned. The supporting product of the pressure vessel-the head is sandblasted to remove the scale on the surface of the workpiece. The diameter of the quartz sand is 1.5mm~3.5mm.

  One kind of processing is to use water as a carrier to drive the emery to machine parts, which is a kind of sand blasting.

  Both Shot Blasting and sand blasting can clean and decontaminate the workpiece. The purpose is to prepare for the next step, that is, to ensure the roughness requirements of the next process, and also for the consistency of the surface, the shot peening has on the workpiece. For reinforcement, sand blasting is not obvious. Generally, shot peening is a small steel ball, and sand blasting is quartz sand. According to different requirements, the number of points.



2023年4月3日星期一

What material is the 20 # seamless steel pipe

 The 20 # seamless steel pipe is made from steel ingots or solid pipe blanks that are perforated into a capillary, and then hot rolled, cold rolled, or cold drawn.


  The 20 # seamless steel pipe plays an important role in China's steel pipe industry. 20 # seamless steel pipe is a low-carbon steel pipe, which is generally divided into three types: low-carbon steel, medium carbon steel, and high carbon steel. Among them, 45 # steel is medium carbon steel, lower than 45 # is low carbon steel, and higher than 45 # is high carbon steel. If there are no special requirements for seamless steel pipes, 20 # seamless steel pipe is generally used.


  The material of 20 # seamless steel pipe is 20 # steel, which has slightly higher strength than 15 # and is rarely quenched, without tempering brittleness. The parts with high cold deformation plasticity, generally used for bending, calendering, edge bending and hammer arch processing, good welding performance of arc welding welding and contact welding, small thickness during gas welding, strict shape requirements or complex shapes are prone to cracks. The cold drawn or normalized state has better machinability than the annealed state, and is generally used for manufacturing workpieces with low stress and high toughness requirements.


  Seamless steel pipes are generally used: they are made of high-quality carbon bonded steel 16Mn, 5MnV, or 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc., hot-rolled or cold-rolled. 10. Seamless pipes made of grade 20 low-carbon steel are mainly used for fluid transportation pipelines. Seamless pipes made of medium carbon steel such as 45 and 40Cr are used to manufacture mechanical parts, such as load-bearing parts for automobiles and tractors. Seamless steel pipes are generally used to ensure strength and flattening tests. Hot rolled steel pipes are delivered in hot rolled or heat treated condition; Cold rolling is delivered in a heat treated state.