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Manufacturing method of multilayer composite plastic storage tank

A multi-layer composite, manufacturing method technology, applied in the direction of coating, application, household appliances, etc., to achieve the effect of beautiful appearance, high material rigidity, and wide applicability

Inactive Publication Date: 2009-06-24
无锡新开河储罐有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the defects of existing storage tanks made of a single plastic, and provide a raw material and manufacturing method of a multilayer composite plastic storage tank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The polyethylene and polypropylene are weighed and mixed according to the proportion of 30% and 40% of the total weight; the polyethylene plastic is added with a weight ratio of 0.3-0.05% of aluminum powder, and the weight ratio of polypropylene plastic is 20-35% % inorganic fillers, such as calcium carbonate, fly ash or glass fiber, put the mixture into the mold at one time, let the material heat during the mold rotation; , polyethylene plastic is first layered to form the outer layer, and then polypropylene plastic is layered to form the middle layer; when all the materials are melted and there is no material rolling, weigh 30% of the total weight, linear low density poly Ethylene plastic powder is put into the mold and continues heating until all the added materials are melted to form the inner layer. Then cease fire and keep warm (let the workpiece cool down to about 100°C naturally), cool (blowing, spraying water for rapid cooling), demoulding, take out the product...

Embodiment 2

[0035]The method of the present invention can be that the same kind of plastics, such as modified polyethylene, is weighed and mixed according to different particle size ratios. Among them, the plastic powder with a particle size below 60 mesh is weighed by 30% of the total weight; the plastic pellets with a particle size of about 10 mesh is weighed by 40% of the total weight, and they are mixed and put into the mold at one time. Let the material heat up during the rotating motion of the mold. The temperature of the furnace is controlled at about 220°C, and it is heated for about one hour. During the heating process, the fine plastic powder first absorbs heat and melts to form an outer layer, and then the fine plastic particles form a layer to form a middle layer. When all the materials are melted and there is no material rolling, put the fine linear low density polyethylene plastic powder weighed by 30% of the total weight into the mold and continue heating until the last add...

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Abstract

The invention relates to a method for producing multilayer composite plastic storage pot, which comprises: putting different plastics or same plastic with different diameters into mould; in the rotation and heating of mould, fusing it into multilayer composites plastic storage pot. The invention has utilize the different fusion temperatures of different plastics, to composite mold, or uses the different particle size of same plastic that different heat adsorption speeds. The invention has improved anti-age property.

Description

technical field [0001] The invention relates to a manufacturing method of a multilayer composite plastic storage tank. Background technique [0002] The tank walls of current plastic storage tanks are all made of a single plastic, such as linear low-density polyethylene powder, which is integrally formed by spinning once feeding. This kind of plastic storage tank has advantages over plastic storage tanks made of tailor-welded plastic plates and glass-steel plastic storage tanks, and is an upgraded product of them. However, the material weaknesses exposed during the long-term use of this rotary plastic storage tank, which endanger the reliability and safety of the tank body, cannot be ignored. [0003] Single-material products have single raw materials and single material properties. From the analysis of the actual use of the storage tank, the comprehensive performance required for the tank wall material of the storage tank is anti-aging, suitable for long-term open-air use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C41/04B29C41/22B29C41/46B29C41/52C08J3/20B29K23/00B29K105/06B29L22/00
Inventor 杭新宇
Owner 无锡新开河储罐有限公司
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