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Deep punching production process of metal cover with silk sarface feeling

A production process and metal cover technology, which is applied in the field of deep-drawing metal cover production technology, can solve the problems of long cycle, complicated process and high cost, and achieve a highly decorative effect.

Inactive Publication Date: 2005-06-15
SHANGHAI FENGHUA ZHAOZHI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is complicated, the cycle is long, the output is low, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The composition of various coatings is as follows by weight %:

[0009] 1) Composition of primer

[0010] Average molecular weight 700-900 bisphenol A epoxy resin 3

[0011] Average molecular weight 1600-3500 Bisphenol A epoxy resin 5

[0012] Average molecular weight 6000~12000 Neopentyl glycol saturated linear polyester resin 75

[0013] Butanol etherified melamine formaldehyde resin 7

[0014] Isobutanol etherified melamine formaldehyde resin 5

[0015] Aminomethylated Polyether Amino Polyurethane 5

[0016] 2) Composition of topcoat

[0017] Average molecular weight 700-900 bisphenol A epoxy resin 5

[0018] Average molecular weight 1600-3500 Bisphenol A epoxy resin 2

[0019] Average molecular weight 6000~12000 Neopentyl glycol saturated linear polyester resin 80

[0020] Saturated linear polyester resin with an average molecular weight of 15,000 to 20,000 5

[0021] Butanol etherified melamine formaldehyde resin 3

[0022] Aminomethylated Polyether Amino...

Embodiment 2

[0042] The composition of various coatings is as follows by weight %:

[0043] 1) Composition of primer

[0044] Average molecular weight 700-900 Bisphenol A epoxy resin 8

[0045] Average molecular weight 1600-3500 Bisphenol A epoxy resin 4

[0046] Average molecular weight 6000~12000 Neopentyl glycol saturated linear polyester resin 70

[0047] Butanol etherified melamine formaldehyde resin 8

[0048] Isobutanol etherified melamine formaldehyde resin 2

[0049] Aminomethylated Polyether Amino Polyurethane 8

[0050] 2) Composition of topcoat

[0051] Average molecular weight 700-900 Bisphenol A epoxy resin 6

[0052] Average molecular weight 1600-3500 Bisphenol A epoxy resin 2

[0053] Average molecular weight 6000~12000 Neopentyl glycol saturated linear polyester resin 75

[0054] Saturated linear polyester resin with an average molecular weight of 15,000-20,000 8

[0055] Butanol etherified melamine formaldehyde resin 4

[0056] Aminomethylated Polyether Amino Poly...

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PUM

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Abstract

The invention provides a production process for deep-drawing metal caps with a silky surface feel, which is characterized in that it comprises the following steps: first, degreasing and decontaminating the metal surface; One of the four kinds of paints is coated and cured; the metal plate is deep-drawn 2 to 5 times on the punching machine to obtain a cylinder with a diameter of 30 mm and a height of ≤ 70 mm with a silky surface; finally, the surface of the cylinder is convex Press machining or / and printing processing to obtain deep-drawn metal bottle caps with a height of ≤70mm and a silky surface feel. Used for the packaging of high-end food, wine, beverages, etc.

Description

technical field [0001] The invention relates to a production process of a deep-drawn metal cover, in particular to a production process of a deep-drawn metal cover with a silk surface feel. Background technique [0002] The traditional method of preparing a high-gloss, high-stretch metal cover is to first coat a high-stretch paint on the surface of the metal plate, and then carry out mechanical deep drawing processing after high-temperature curing to obtain a semi-finished product, and then spray or flow coat a high-strength coating on the semi-finished paint surface. Solids clear coating that cures at high temperature to form a high gloss finish. The process is complicated, the cycle is long, the output is low, and the cost is high. Contents of the invention [0003] The purpose of the present invention is to provide a coating with different coefficients of expansion on a metal plate. After mechanical deep drawing, the outer surface coating presents a highly decorative s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B21D51/48
Inventor 赵力曾燕
Owner SHANGHAI FENGHUA ZHAOZHI NEW MATERIAL TECH
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