Rail shoulder, also called rail iron shoulder, is mainly used to be casted in the concrete ties to fixate elastic rail clips. According to the shape, it can be classified into Single Stem Rail Iron Shoulder and Twin Stems Rail Iron Shoulder. Besides, according to the manufacturing ways, rail shoulder can be divided into 3 types: casting rail shoulder, weld-on rail shoulder and hot forging rail shoulder.
The rail shoulder is embedded in concrete at the time of casting, it's used to grips the clip effectively and provides lateral support to rail. It is a semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate.
There are two common types of rail shoulders available: Cast-in Shoulder and Weld-on Shoulder, both of which are used for the fixing of elastic rail clips. One is Single Stem Iron Shoulder used in pre-stressed concrete ties and the other is Twin Stem Iron Shoulder used in Bi-Block or Twin Block concrete ties.
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Raw Material Inspection: Before producing Rail Shoulder, we will check and test the raw materials. We require production batch numbers, chemical composition, mechanical properties, and other testing indicators.
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Batch Testing: Quality control inspectors take sample sampling and batch testing after the manufacturing process, providing raw material certificates and other means to control the testing process.
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Physical & Chemical Analysis: According to different requirements, we perform corresponding physical and chemical testing and inspection. Materials are only accepted if they meet strict standards.
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Technical Guidance: For semi-finished products and external suppliers, we organize quality control coordination meetings and provide technical advice to ensure qualified products are delivered.
Frequently Asked Questions
What are the primary types of rail shoulders by manufacturing method?
Rail shoulders can be divided into three main manufacturing types: casting rail shoulder, weld-on rail shoulder, and hot forging rail shoulder.
Where is the Twin Stem Iron Shoulder typically used?
The Twin Stem Iron Shoulder is specifically designed for use in Bi-Block or Twin Block concrete ties.
What is the main function of a rail shoulder in railway construction?
It is embedded in concrete ties to grip elastic rail clips effectively and provide essential lateral support to the rail.
What quality certification does the production process follow?
All production processes are in accordance with the ISO 9001 quality management system requirements.
How are raw materials verified before production?
Raw materials are checked for batch numbers, chemical composition, and mechanical properties to ensure they meet all testing indicators.
What is the annual production capacity for these rail components?
The production capacity is approximately 500,000 tons per year.