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A kind of metal component fully lined plastic anti-corrosion method

A metal component and plastic-lined technology, applied in the direction of coating, etc., can solve the problems of high cost, poor appearance transparency, etc., and achieve good rheology or melt fluidity, high shear sensitivity, and good economical effect

Active Publication Date: 2019-02-22
胡中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, LDPE and LLDPE are mostly used in the plastics industry. In recent years, some people have begun to try to use LLDPE for rotational molding for equipment anticorrosion. However, using a single LLDPE has poor appearance transparency and high cost
Using LDPE and LLDPE together as the plastic lining method of antiseptic preparations, there is no record in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 A method for anti-corrosion of metal components fully lined with plastic, comprising the following steps:

[0018] (1) Preparation of antiseptic preparations: take 92 parts of LLDPE and 8 parts of LDPE, and mix them thoroughly to prepare antiseptic preparations;

[0019] (2) Drying: drying the antiseptic preparation obtained in step (1), so that the moisture content in the antiseptic preparation is <1.5%;

[0020] (3) Preheating: place the dried antiseptic preparation at room temperature to make the temperature reach 19-25°C;

[0021] (4) Crushing: crush the preheated preservative preparation into powder with a particle size of <80 mesh;

[0022] (5) Derusting: Derusting the outer surface of the metal component to expose the true color of the metal on the surface of the component;

[0023] (6) Heating: Heating the entire metal component that has undergone derusting treatment to 300°C and keeping it warm;

[0024] (7) One-time plastic lining: put the heat...

Embodiment 2

[0029] A method for anti-corrosion of metal components fully lined with plastic, comprising the steps of:

[0030] (1) Preparation of antiseptic preparations: take 92 parts of LLDPE and 8 parts of LDPE, and mix them thoroughly to prepare antiseptic preparations;

[0031] (2) Drying: drying the antiseptic preparation obtained in step (1), so that the moisture content in the antiseptic preparation is <1.5%;

[0032] (3) Preheating: place the dried antiseptic preparation at room temperature to make the temperature reach 19-25°C;

[0033] (4) Crushing: crush the preheated preservative preparation into powder with a particle size of <80 mesh;

[0034] (5) Derusting: Derusting the outer surface of the metal component to expose the true color of the metal on the surface of the component;

[0035] (6) Heating: Heating the entire metal component that has undergone derusting treatment to 300°C and keeping it warm;

[0036] (7) One-time plastic lining: put the heated metal component i...

Embodiment 3

[0041] A method for anti-corrosion of metal components fully lined with plastic, comprising the steps of:

[0042] (1) Preparation of antiseptic preparations: take 92 parts of LLDPE and 8 parts of LDPE, and mix them thoroughly to prepare antiseptic preparations;

[0043] (2) Drying: drying the antiseptic preparation obtained in step (1), so that the moisture content in the antiseptic preparation is <1.5%;

[0044] (3) Preheating: place the dried antiseptic preparation at room temperature to make the temperature reach 19-25°C;

[0045] (4) Crushing: crush the preheated preservative preparation into powder with a particle size of <80 mesh;

[0046](5) Derusting: Derusting the outer surface of the metal components to expose the original metal color on the surface of the components;

[0047] (6) Heating: Heating the entire metal component that has undergone derusting treatment to 300°C and keeping it warm;

[0048] (7) One-time plastic lining: put the heated metal component int...

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Abstract

The invention belongs to the technical field of anticorrosion, and particularly relates to a full plastic lining anticorrosion method of a metal component. The method comprises the following steps of preparing of an anticorrosion preparation, wherein after 92 parts of LLDPE and 8 parts of LDPE are fully mixed, the anticorrosion preparation is prepared; drying; preheating; crushing; rust removal; heating, wherein the metal component subjected to rust removal treatment is overall heated till the temperature is 300 DEG C, and heat preservation is carried out; primary plastic lining; secondary plastic lining; and cooling, wherein the metal component is taken out and cooled in air to room temperature. According to the anticorrosion preparation prepared by adopting the LLDPE and the LDPE as raw materials and mixing the LLDPE and the LDPE, higher viscosity is kept while low shear sensibility of the LLDPE is achieved, the extremely good rheological property or melting mobility is achieved, and meanwhile the transparency of the LDPE is achieved.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion, and in particular relates to a method for anti-corrosion of metal components fully lined with plastic. Background technique [0002] Polyethylene (POLYETHYLENE, PE) is a polymer formed by the polymerization of ethylene. The product has been developed for about 60 years, and the global polyethylene production ranks first among the five general-purpose resins. Polyethylene can be divided into high-density polyethylene, low-density polyethylene and linear low-density polyethylene according to different polymerization methods, molecular weight and chain structure. Low density polyethylene (LOW DENSITY POLYETHYLENE, LDPE) is commonly known as high-pressure polyethylene. Because of its low density and the softest material, it is mainly used in plastic bags and agricultural films. [0003] Linear low density polyethylene (LINEAR LOW DENSITY POLYETHYLENE, LLDPE) is a copolymer of ethylene and a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06F16L58/10
CPCF16L58/1045
Inventor 胡中杨惠娟胡永春
Owner 胡中
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