Cylindrical shell sloping-bottom tank car body manufacture technique

A manufacturing process and a technology of barrel joints, which are applied in the field of manufacturing process of tank car tanks with inclined bottoms of barrel joints, can solve the problems of difficult welding quality assurance, poor tank body forming quality, and poor cutting quality, so as to achieve reliable welding seam forming quality, Strong adaptability, convenient and flexible operation

Active Publication Date: 2009-04-29
XI AN RAILWAY TRANSPORTATION EQUIP
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  • Claims
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Problems solved by technology

[0009] The purpose of the present invention is to provide a manufacturing process for the tank body of a tank car with a slanted bottom, which solves the

Method used

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  • Cylindrical shell sloping-bottom tank car body manufacture technique
  • Cylindrical shell sloping-bottom tank car body manufacture technique
  • Cylindrical shell sloping-bottom tank car body manufacture technique

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Experimental program
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Embodiment Construction

[0046] see figure 1 , a manufacturing process for a tank car with a barrel section and inclined bottom, the manufacturing process comprises the following steps:

[0047] 1) Rolling barrel pitch cone

[0048] 1.1) Take two straight conical sheets, roll and bend them with a rounding machine respectively, and then weld the longitudinal seam of the cylindrical section to obtain the first frustum-conical cylindrical section and the second frusto-conical cylindrical section

[0049] The cones of the first and second truncated conical barrel joints are all right cones with the same inclination, the top surface of the frustum of the second truncated conical barrel joint the bottom surface have the same diameter;

[0050] 1.2) Take a piece of sheet material that is obliquely cut and unfolded by a normal cone, roll and bend it with a spheroid machine, and then weld the longitudinal seam of the cylinder section to obtain the third right-angle oblique cone cylinder section;

[0051] T...

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Abstract

The invention relates to a manufacturing technique of a tank body of a cylindrical shell section sloping bottom tank car, comprising three steps of rolling cylindrical shell section cones, fitting up the cylindrical shell section cones and forming the tank body. The invention has reasonable step design; and the manufactured tank body of the sloping bottom tank is completely consistent with the design requirements, thus fundamentally eliminating the quality defect of the sloping bottom tank body caused by the technique method and greatly improving the welding quality; and the invention is applicable to the production of various cylindrical shell section sloping bottom tank cars and can be produced on scale.

Description

technical field [0001] The invention relates to a manufacturing process of a tank body of a railway tank car, in particular to a manufacturing process of a tank body of a tank car with a barrel section and an inclined bottom. Background technique [0002] The current tank structure of railway tank cars has four types: straight barrel, fish belly, inclined bottom, and "V" shape. Straight tanks and fish-belly tanks have the problem of emptying the liquid medium. In order to solve this problem, the tank structure mostly adopts a slanted bottom and a "V"-shaped structure. In the case of difficulty in changing the length of the vehicle, in order to successfully complete the fourth upgrade of the railway tank car (from 60t class to 70t class), the car body structure is changed from a straight cylindrical tank body to an inclined bottom tank. Its manufacturing process still uses the traditional straight tank manufacturing process. The specific method of manufacturing inclined bott...

Claims

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Application Information

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IPC IPC(8): B23P15/00B21D5/06B23K9/02B23K9/18B65D88/12B65D90/02
Inventor 董曼李向东陈胜利韩志坚邓嘉王宇王建红杨春峰王利东陈军涛范文革
Owner XI AN RAILWAY TRANSPORTATION EQUIP
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