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Asbestos Boson Technology Abrasives Co., Ltd.
Shi'an Bisen Technology Abrasives Co., Ltd. was founded in 1975 and is a domestic specialist enterprise focused on the production of boron carbide. The company is located in the northeastern corner of Mudanjiang City, known as the "Jiangnan of the North," and covers an area of 10,000 square meters. It boasts modern factory buildings and a clean, elegant campus environment.
The company boasts a highly qualified R&D team, a sound management system, specialized production equipment, and comprehensive testing facilities. Guided by the principle that “quality is the foundation for an enterprise’s survival,” the company—through the tireless efforts of its leadership and employees—has successfully obtained ISO9001—2000 quality management system certification.
Company Introduction
Shi'an Bisen Technology Abrasives Co., Ltd. was founded in 1975 and is a domestic specialist enterprise focused on the production of boron carbide. The company is located in the northeastern corner of Mudanjiang City, known as the "Jiangnan of the North," and covers an area of 10,000 square meters. It boasts modern factory buildings and a clean, elegant campus environment.
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The company is equipped with a highly qualified research team, has established a sound management system, and possesses specialized production equipment as well as comprehensive testing facilities.
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A specialized enterprise focused on boron carbide production.
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Our strengths
01
Inspection and testing
Drawing on the technological expertise of pioneers, we continuously pursue independent innovation and are committed to providing users with personalized, customized, and systematic solutions.
02
Factory equipment
Production equipment tailored to meet manufacturing needs, coupled with comprehensive testing methods, ensure that we can provide customers with precise and consistently high-quality boron carbide products.
03
Corporate Honors
Deeply rooted in the boron carbide field and having developed our own unique technological strengths, we deliver products of stable and reliable quality, earning high recognition from numerous cooperative clients.
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2022/01
19
Processing Technology for Duplex Stainless Steel Pipes
The risers on offshore oil platforms are subjected to prolonged scouring by waves, so they must be made of materials with high strength and excellent resistance to pitting corrosion. Among these materials, duplex stainless steel pipes—possessing both austenitic and ferritic microstructures—offer advantages such as a high pitting-resistance factor, superior mechanical properties, and outstanding resistance to chloride-ion corrosion. As such, they represent an ideal material for use in offshore oil platform risers. Now, let’s take a closer look at the processing techniques for duplex stainless steel pipes!
Key points of the welding process for duplex stainless steel pipes
Due to the inherent metallurgical characteristics of duplex stainless steel pipes, the choice of welding methods is limited. Both excessively high and excessively low welding heat inputs are undesirable. When the welding heat input is too high, the cooling rate of the weld joint slows down, which promotes the transformation of ferrite in the heat-affected zone and the weld metal into austenite, resulting in an adequate amount of austenite. However, this can easily lead to the growth of ferrite grains, the formation of harmful intermetallic phases, and a reduction in toughness. So, let’s now take a closer look at the key points of the welding process for duplex stainless steel pipes!
Welding Process Method for Duplex Stainless Steel Pipes
Based on the factory’s many years of experience in welding duplex stainless steel, we have now summarized the following welding techniques for duplex steel. So, let’s take a closer look at the welding processes and operational steps for duplex stainless steel pipes!
Asbestos Boson Technology Abrasives Co., Ltd.
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Address: No. 6, West of Bingxiang Road, Yangming District, Mudanjiang City, Heilongjiang Province
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