Y-shaped seamless tee pressing technology
A seamless tee and process technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problem of reducing deformation, etc., to achieve the effect of reducing bulging, high forming quality, and reducing skill requirements
Active Publication Date: 2015-09-30
CANGZHOU LONGTAIDI PIPE TECH
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Problems solved by technology
[0003] In order to solve the above problems, the purpose of the present invention is to provide a Y-shaped seamless tee pressing process, which is gradually pressed into a T-shaped tee by using multiple sets of molds, thereby reducing the deformation of each pressing and greatly reducing the Minimize the occurrence of defects such as bulges and collapses, thereby ensuring the molding quality of the tee, and finally use the Y-shaped tee mold to press the T-shaped tee into a Y-shaped one-time
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[0024] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0025] A Y-shaped seamless tee pressing process, which specifically includes the following steps:
[0026] Step 1: Use seamless steel pipe as the material for making the tee joint, and determine the size of the seamless steel pipe by the coefficient of the finished tee;
[0027] Step 2: Wrap both ends of the seamless steel pipe with heat insulating material, and the length of the wrapped part matches the symmetrical branch pipe of the finished tee;
[0028] Step 3: heating the middle part of the seamless steel pipe to 700°C-900°C;
[0029] Step 4: If figure 1 As shown, the heat insulating material is removed, and the heated seamless steel pipe 1 is placed on the first set of T-shaped molds 2. There is a T-shaped through hole in the middle of the first set of T-shaped mold 2, and the T-shaped through holes include vertically arranged The horizontal th...
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The invention discloses a Y-shaped seamless tee pressing technology. According to the technological method, a plurality of molds are adopted for gradually pressing a T-shaped tee, so that the deformation produced by every pressing is reduced, the defects of swelling, collapse and the like are greatly reduced, the tee forming quality is ensured, and finally the T-shaped tee is pressed by a Y-shaped tee mold to be in a Y shape at a time. The branch pipe metal flow direction is precisely controlled so that it can be ensured that the tee forming quality is high, the R arc wall thickness is not reduced, a branch pipe and main pipe composite layer is not separated and a main pipe does not swell. The multiple molds are used for pressing, so that the composite tee pressing process is detailed, and the requirement for skills of operators is lowered.
Description
technical field [0001] The invention relates to a Y-shaped seamless tee pressing process. Background technique [0002] Seamless tees are important pipe fittings in pipeline engineering applications in petroleum, chemical, electric power, metallurgy and other industries. Under some harsh environmental conditions such as pressure, flow stability and temperature, seamless tees are often required. The Y-shaped seamless tee is composed of a main pipe and two branch pipes connected to it. There are two main methods for manufacturing this Y-shaped seamless tee. One is the casting method. The disadvantage of this method is the cost of mold manufacturing. High, and the internal metal structure of the casting product is not ideal, it is difficult to ensure that it can meet the needs of high-pressure pipelines. Another kind of method is to carry out the method for machining after forging with steel billet, and its shortcoming is many consumables, and processing is complicated, and co...
Claims
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IPC IPC(8): B21D35/00B21D37/10
Inventor 仉新钢张涛张向军刘景阳闫培庆李敏孙俪金鹏飞王超
Owner CANGZHOU LONGTAIDI PIPE TECH