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Deep-drawing attenuated processing method of resin clad metal plate as well as resin coating deep-drawing attenuated tank using said method

一种加工方法、拉深减薄的技术，应用在应用、家里用具、其他家里用具等方向，能够解决难以形成壁厚分布、成本降低、罐侧壁破断等问题

Inactive Publication Date: 2008-11-12
TOYO SEIKAN KAISHA LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that as the thickness of the side wall of the can is thinned, fractures are likely to occur on the side wall of the can, so that the reduction of the thickness of the side wall of the can, that is, the reduction in weight, cannot be sufficiently carried out. cost reduction
That is, it can be seen that when thinning is performed using a thinning female mold in which the front stage and the rear stage are successively provided as in the above thinning method, the step portion formed between the flange forming portion and the side wall portion The position corresponding to the side end of the side wall part, the corrugation line (local thin-walled part) will be generated when the front-stage die reaches, and the tank body will be damaged
In addition, the thickness of the side wall in the vicinity of the stepped portion becomes thicker than the set gap formed between the punch and the die, making it difficult to form a wall thickness distribution as the set thickness

Method used

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  • Deep-drawing attenuated processing method of resin clad metal plate as well as resin coating deep-drawing attenuated tank using said method
  • Deep-drawing attenuated processing method of resin clad metal plate as well as resin coating deep-drawing attenuated tank using said method
  • Deep-drawing attenuated processing method of resin clad metal plate as well as resin coating deep-drawing attenuated tank using said method

Examples

Experimental program
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Effect test

Embodiment 1～3、 comparative example 1～2

[0069] As the test plate, the following organic resin-coated steel plate was used: a transparent polyester film with a thickness of 28 μm was coated on the surface of the electrolytic chromate-treated steel plate with a thickness of 0.190 mm to become the inner surface of the can, and the surface that became the outer surface of the can was covered with The side surfaces were covered with white polyester resin to which a titanium oxide-based pigment was added in a thickness of 16 μm. After punching out a circular blank with a diameter of 151 mm from this organic resin-coated steel sheet, a drawn cup body with a diameter of 91 mm was formed by the first-stage drawing process, and then a drawn cup body with a diameter of 66 mm was formed by the second-stage drawing process. deep drawn cup body.

[0070] The cup body was subjected to thinning processing under the conditions shown below using a thinning processing apparatus composed of two stages of thinning processing sections to...

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Abstract

A method of the drawing / ironing of a resin-coated metal sheet which comprises drawing a resin-coated metal sheet comprising a metal sheet and an organic resin with which at least one side of the sheet is coated and then ironing it with a punch and adjacent dies to thereby mold a can comprising a bottom, a side-wall part, and a flange-forming part. By the method, barrel breakage accompanying a reduction in the thickness of the can side wall can be effectively prevented. Furthermore, a drawn and ironed can having a thickness reduced to a predetermined value can be efficiently molded.

Description

technical field [0001] The present invention relates to a processing method for drawing and wall ironing can of a resin-coated metal plate, in particular to a process that does not produce shock lines on the can body during ironing, and can A thinning processing method that effectively prevents damage to the can body and can sufficiently thin the side wall of the tank, and a resin-coated deep-drawn thinning tank using the method. Background technique [0002] Deep-drawing and thinning tanks generally punch blanks from metal plates, and after drawing the blanks into cups, use a thinning processing device consisting of a punch and a multi-stage thinning die. , Install the drawn cup body on the punch, and then insert the cup body and the punch into the thinning die to finish the specified tank side wall thickness and tank height. In deep drawing and thinning, a large amount of lubricating oil and cooling water are used for lubrication and cooling during processing. [0003] H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/28
CPCB21D22/28B21D22/30B21D51/26
Inventor 户丸秀和田屋慎一甲斐政浩田边纯一堤悦郎佐伯则人
Owner TOYO SEIKAN KAISHA LTD
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