Seamless tank and manufacturing method thereof

A manufacturing method and technology for seamless cans, applied in the field of can making, can solve problems such as paint peeling off, achieve the effects of good decoration, overcoming easy peeling, and high surface density

Inactive Publication Date: 2016-08-10
ORG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a method for manufacturing a seamless tank and a seamless tank, which not only is not prone to the problem of paint falling off, but also can effectively enhance the strength of the tank body

Method used

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] The manufacturing method of the seamless can of the present invention comprises blanking the coating material to obtain a circular flat plate raw material; cupping the circular flat plate raw material to obtain a first U-shaped semi-finished product, so that the outer diameter of the first U-shaped semi-finished product is at least smaller t...

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Abstract

The invention provides a seamless tank and a manufacturing method thereof. The manufacturing method includes the following steps that a circular flat plate raw material is obtained by blanking a film-covered material; punching is conducted on the circular flat plate raw material, so that a first U-shaped semi-finished product is obtained, and the external diameter of the first U-shaped semi-finished product is made to be at least 30% smaller than the diameter of the circular flat plate raw material; primary drawing is conducted on the first U-shaped semi-finished product, so that a second U-shaped semi-finished product is obtained, and the external diameter of the second U-shaped semi-finished product is made to be at least 35% smaller than the external diameter of the first U-shaped semi-finished product; secondary drawing is conducted on the second U-shaped semi-finished product till the second U-shaped semi-finished product reaches the tank body dimension, and then a third U-shaped semi-finished product is obtained; the top of the third U-shaped semi-finished product is trimmed, so that a tank body is obtained; and the tank body and a tank cover are connected into a whole to obtain the seamless tank. According to the seamless tank and the manufacturing method thereof, the pressure resistance strength of the tank body can be improved remarkably, and the tank body is not prone to deformation and good in corrosion resistance.

Description

technical field [0001] The invention relates to can making technology, in particular to a method for manufacturing a seamless can and the seamless can. Background technique [0002] With the continuous improvement of food safety requirements, the state has continuously introduced industry development policies that are conducive to the development and production of high-quality products. Especially in recent years, with the improvement of people's living standards, end consumers have higher and higher requirements for product quality. [0003] At present, the main product used for filling beverage or food in the market is a two-piece can structure, including the can body and the top cover, which has better sealing performance than the three-piece can. [0004] However, at present, most of the two-piece cans are thinned stretched cans made of painted iron, which have poor corrosion resistance. At the same time, the can body is thin, and the compressive strength and load-bearin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/26
CPCB21D51/26
Inventor 陈玉飞陈博
Owner ORG TECH CO LTD
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