Handrail foaming process

A handrail and process technology, which is applied in the field of processing technology for applying foam coating to metal surfaces, can solve the problems of reduced service life of metal handrails, high thermal conductivity of metal handrails, and easy aging, hardening and fracture, etc., so as to shorten the production time. Craftsmanship, tactile comfort, durability and excellent corrosion resistance

Inactive Publication Date: 2015-12-30
JIANGSU KESHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The external handrails used for climbing in large trucks such as trucks are all obtained by casting or forging metals. In order to prevent wear and corrosion, the surface of the metal handrails is usually coated with paint or other corrosion-resistant coatings; however, due to the heat conduction of the metal handrails The coefficient is high. In hot weather in summer or severe cold in winter, when the user grasps, a lot of heat will flow into the hand, or the heat will flow out from the hand will be high, so it will feel very hot or cold, and the touch is not good. Comfortable; and the paint or corrosion-resistant coating formed by coating or spraying in the prior art, due to frequent touch and grip for a long time, the paint will often fall off and rust, resulting in a reduction in the service life of the metal handrail; in the prior art, In order to improve the feel and comfort of the grip, a plastic sheath is applied to the outside of the metal handrail, but the plastic sheath is prone to aging, hardening and fracture in the natural environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The handrail foaming process described in this embodiment includes the following steps: sandblasting, pickling and alkali washing are carried out sequentially on the metal handrail to remove rust, roughening and grease on the surface, and dry to give foaming The process provides a clean surface; clean the handrail mold, such as the exhaust port, the filling port, etc., and check whether there are impurities and residues in the inner cavity; spray the release agent evenly in the mold cavity, here the release agent Adopt commercially available common release agent to get final product; Spray in-mold paint in described handrail mold cavity, described in-mold paint is made of methyl methacrylate of 18wt%, methyl etherified melamine resin of 12wt%, 15wt% of polyphenylene sulfide, 1.2wt% of γ-aminopropyltriethoxysilane, 3.8wt% of rosin modified phenolic resin, 1.5wt% of calcium fluoride, 2.5wt% of zinc phosphate and the balance of butyl acetate. The in-mold paint can be appl...

Embodiment 2

[0020] The handrail foaming process described in this embodiment includes the following steps: sandblasting, pickling and alkali washing are carried out sequentially on the metal handrail to remove rust, roughening and grease on the surface, and dry to give foaming The process provides a clean surface; clean the handrail mold, such as the exhaust port, the filling port, etc., and check whether there are impurities and residues in the inner cavity; spray the release agent evenly in the mold cavity, here the release agent Adopt commercially available common release agent to get final product; Spray in-mold paint in described handrail mold cavity, described in-mold paint is made of methyl methacrylate of 18wt%, methyl etherified melamine resin of 12wt%, 15wt% of polyphenylene sulfide, 1.2wt% of γ-aminopropyltriethoxysilane, 3.8wt% of rosin modified phenolic resin, 1.5wt% of calcium fluoride, 2.5wt% of zinc phosphate and the balance of butyl acetate. The in-mold paint can be appl...

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Abstract

The invention relates to an armrest foaming technology and belongs to the technical field of metal surface treatment. The foaming technology comprises the following steps: (1) opening an armrest mould and uniformly spraying a release agent into an armrest mould cavity; (2) spraying an in-mould coating into the armrest mould cavity and drying or naturally drying; (3) placing an armrest into the armrest mould cavity and closing the armrest mould; (4) injecting a foam material through an armrest mould sprue; and (5) opening the armrest mould after full reaction and solidification, and taking out the processed armrest. By the armrest foaming technology, a foaming coating which is comfortable in tactile feel, is durable and has excellent corrosion resistance can be formed on an armrest.

Description

technical field [0001] The invention belongs to the technical field of metal material surface treatment, and more specifically, the invention relates to a treatment process for coating a metal surface with a foam coating. Background technique [0002] The external handrails used for climbing in trucks and other large trucks are all obtained by casting or forging metals. In order to prevent wear and corrosion, the surface of the metal handrails is usually coated with paint or other corrosion-resistant coatings; however, due to the thermal conductivity of the metal handrails The coefficient is high. In hot weather in summer or severe cold in winter, when the user holds the hand, a lot of heat will flow into the hand, or the heat will flow out from the hand will be very high, so it will feel very hot or cold, and the touch is not good. Comfortable; and the paint or corrosion-resistant coating formed by coating or spraying in the prior art, due to frequent touch and grip for a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/12
Inventor 陈川良
Owner JIANGSU KESHENG TECH CO LTD
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