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How to identify and choose flange gaskets - part one
- Posted: 03/20/2019 03:03:26
- Hits: 59
Flat gaskets used in the industry generally consist of a sealing element and an inner and outer reinforcing ring, which is a key part of the leakage prevention. Commonly used materials are non-metallic materials, such as flexible graphite, PTFE, fiber reinforced rubber-based composite panels. In addition,...
Production and use requirements of slip-on flanges
- Posted: 03/11/2019 02:03:42
- Hits: 73
Slip-on flanges have certain technical requirements and parameters in production and use, and are produced and processed according to the following methods: The slip-on flange shall be cut into strips along the rolling direction of the steel, and be brazed and welded into a ring shape, and the surface...
General knowledge of flanges
- Posted: 02/27/2019 03:02:41
- Hits: 80
For people not knowing too much about flanges, they are actually a common disc-shaped part that helps connect pipes, equipment, etc. Due to their excellent connection performance, flanges have been rapidly promoted and used in many places. But many people still have a lot of questions about them. So,...
Hydrogen embrittlement (silvery spots) on steel forgings
- Posted: 02/18/2019 03:02:39
- Hits: 140
Hydrogen embrittlement, also known as hydrogen-induced cracking, is one of the major defects in large forgings and occurs mostly in medium-carbon alloy steel forgings (martensitic steel and pearlitic steel). The larger the forging size, the easier the hydrogen embrittlement is formed. Special care should...
Five technical requirements in flange forging process (part three)
- Posted: 02/11/2019 04:02:37
- Hits: 23
2. Technical requirements for shape, size and surface condition of flange forgings Based on reliable raw material quality, one of the tasks of flange forging processing is to obtain the required shape, size and surface condition to meet the requirements of parts design, processing and use conditions....
Five technical requirements in flange forging process (part two)
- Posted: 01/31/2019 03:01:16
- Hits: 36
Mechanical property The mechanical properties of raw materials include properties at room temperature and high temperature, such as strength index, plasticity index, impact toughness, hardness, fracture toughness, permanent strength, fatigue properties, stress corrosion resistance, etc., which should...
Five technical requirements in flange forging process (part one)
- Posted: 01/17/2019 05:01:33
- Hits: 71
The use conditions of flanges refer to the importance, working conditions, assembly and disassembly difficulty, complexity of them, as well as force, working temperature, corrosion degree, and other factors. From the basic principle that the forging is to serve and meet the use conditions of the...
Quality Control and Repair in Flange Forging Production
- Posted: 01/07/2019 06:01:36
- Hits: 103
In order to ensure that the flange forgings have the dimensional accuracy and mechanical properties required by the design, the quality of the forgings must be controlled, that is, the entire production process from selecting raw materials to post-forging heat treatment must be controlled to ensure...
How to improve the plasticity of metal in forging process
- Posted: 12/28/2018 05:12:23
- Hits: 219
Most of the time, plastic processing of metal forgings is a series of processes that a simple-shape blank turns into the final product with required shape and size via plastic deformation. Good metal plasticity facilitates plastic forming, and from the angle of plastic processing, the main ways to improve...