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Steel pail with antiseptic plastic inner container and manufacturing method thereof

A manufacturing method and technology for steel pails, which can be used in sustainable manufacturing/processing, lining/interior coating, flexible covering, etc., and can solve problems such as affecting the quality of contained products, poor corrosion resistance, and affecting the performance of iron drums. , to achieve the effect of safe and effective manufacturing method, low cost and resource saving

Inactive Publication Date: 2007-09-12
李俊贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yellow plating treatment or coating treatment must be re-plated. Polyester synthetic paint is generally used for re-plating. The corrosion resistance of the weld seam and handle ears is extremely poor, and it is easy to rust, which affects the performance of the entire iron drum.
Therefore, the current steel pails have poor anti-corrosion performance and long service life, which affects the quality of the products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1, a steel pail with an anti-corrosion plastic liner includes a barrel body and a liner. The inner wall of the barrel is covered with a PVC barrel-shaped liner. The barrel-shaped liner is pressed into a sheet with PVC raw materials and then processed The barrel-shaped hollow mold is vacuum-formed, and the inner diameter and shape are consistent with the barrel body.

[0012] The specific manufacturing method is:

[0013] (1) Molded liner: add plasticizer dioctyl phthalate to PVC raw material, the amount of plasticizer added is 3-5% of PVC weight, plasticize at 150°C-160°C, and then 180°C-190°C plate press presses into sheets, the sheets are softened at 120°C-130°C and then placed flat on the upper opening of the hollow barrel-shaped mold, and vacuum is drawn from the lower mouth of the hollow barrel-shaped mold to absorb the sheet to form a barrel-shaped interior Gall;

[0014] (2) Coating: apply glue on the outer surface of the barrel-shaped inner tank, pu...

Embodiment 2

[0015] Example 2, referring to Example 1, the plastic liner is made of PE material. According to the characteristics of the material, the selected plasticizing temperature is 180°C-200°C, and the temperature for pressing the plate into a sheet is 200°C-220°C. The softening temperature is 140°C-150°C.

[0016] In order to ensure product quality and reduce costs, the thickness of the sheet is controlled to 20-50S when PE is pressed into a sheet; when the inner liner is pasted on the inner wall of the barrel, the pressure exerted in the inner liner cavity is 0.5-1 kg.

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PUM

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Abstract

The steel pail with anticorrosive plastic inner container suitable for holding water-base paint and chemical material includes one pail body and one inner container. The plastic inner container is made with plastic and through pressing into sheet and vacuum forming in a pail-shaped hollow mold, and has the same inner diameter and shape as that of the pail body. The steel pail with anticorrosive plastic inner container is anticorrosive and can ensure the quality of the held material. The inner container has low cost and simple production process, and the steel pail may be reused to save resource.

Description

technical field [0001] The invention relates to an anti-corrosion steel pail suitable for containing water-based paint and chemical raw materials, in particular to a steel pail with an anti-corrosion plastic liner, and also provides a manufacturing method for the steel pail. Background technique [0002] At present, the steel pails used in the water-based paint and chemical raw material industries have certain water oxidation and corrosion properties. The tinplate of this kind of bucket is easy to oxidize and rust. Packaging barrel manufacturers usually print and pack At the same time, the inner side of the iron sheet is treated with a yellow plating process, or the iron sheet is covered with a plastic film for anti-corrosion treatment, and then the barrel is formed into a barrel through welding seam expansion. Regardless of the method, anti-corrosion treatment is carried out on the tinplate before the barrel is formed, but the welding seam and handle ears need to be welded ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D25/14B65D8/16B65D65/40B32B1/02B29C69/00B29C43/58B29C51/10B29C65/48
CPCY02W30/80
Inventor 李俊贤
Owner 李俊贤
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