Hand-holding power tool and processing method of outer shell thereof

A technology of electric tools and treatment methods, which is applied in the direction of manufacturing tools, pre-treated surfaces, and portable mobile devices, etc., can solve the problems of low dielectric strength, thin spray coating, short service life, etc., and achieve safe and reliable electrical insulation performance, Increase corrosion resistance, smooth and bright surface effect

Inactive Publication Date: 2010-06-23
陆金永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hand-held electric tools currently on the market are sprayed with paint or plastic powder on the surface of the aluminum alloy body and the surface of the handle in order to solve the problems of product corrosion resistance, weather resistance, abrasion resistance, and voltage resistance. The reason is that the sprayed film layer is thin, easy to fall off, and has a short service life. At the same time, the insulation withstand voltage strength is not very high, especially after the field operation is wet, the insulation strength is lower, and there are potential safety hazards.

Method used

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  • Hand-holding power tool and processing method of outer shell thereof
  • Hand-holding power tool and processing method of outer shell thereof
  • Hand-holding power tool and processing method of outer shell thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1 to Figure 3 As shown, a hand-held electric tool taking a hammer drill as an example includes a hammer drill upper body shell 1, a hammer drill lower body shell 4, a first handle shell 2 and a second handle shell 3, and the hammer drill upper body shell 1, The outer surfaces of the lower body shell 4 of the hammer drill, the first handle shell 2 and the second handle shell are all provided with an outer surface coating 5, the upper body shell 1 of the hammer drill, the lower body shell 4 of the hammer drill, and the first handle shell 2 and the inner surface of the second handle housing 3 are provided with an inner surface coating 6 .

[0044] The material for making the inner and outer surface coatings is polyethylene. Because the friction degree of the inner surface of the hammer drill is small, the thickness of the inner surface coating 6 is set to 0.40mm, and because the friction degree of the handle part is large, the outer surfaces of the first h...

Embodiment 2

[0052] Such as Figure 4 to Figure 5 As shown, a common handle is taken as an example, including a handle shell 7, an outer surface coating 5 is provided on the outer surface of the handle shell 7, and an inner surface coating 6 is provided on the inner surface of the handle shell 7. The material of making the inner and outer surface coating of the handle shell 7 is polyvinyl chloride. Because the degree of friction of the inner surface of the handle housing 7 is small, the thickness of the inner surface coating 6 is set to 0.50 mm, and because the degree of friction of the outer surface of the handle housing 7 is large, the thickness of the outer surface coating 5 is set to 0.60 mm. mm.

[0053] The processing method of the handle shell 7, (the handle shell 7 is made of aluminum alloy.) The method comprises the following steps:

[0054]1. Surface treatment of the handle shell 7: first put the handle shell 7 into an aqueous solution containing a concentration of 20g / L phosph...

Embodiment 3

[0059] Such as Figure 6 , Figure 7 As shown, the hand-held power tool taking the sand mill as an example includes an upper body shell 8 of the sand mill and a lower body shell 9 of the sand mill, and the upper body shell 8 of the sand mill and the lower body shell 9 of the sand mill The outer surface coating 5 is arranged on the outer surface, and because the friction degree of the inner surface of the sand mill is small, no coating can be arranged on the inner surface. The material for making the outer surface coating 5 is polytetrafluoroethylene. The thickness of the outer surface coating 5 is set to 0.48mm.

[0060] The processing method of the shell of the hand-held electric tool sand mill, (in this embodiment, the upper body shell 8 of the sand mill and the lower body shell 9 of the sand mill are collectively referred to as the shell, and the shells are all made of aluminum alloy.) The method includes the following steps:

[0061] 1. Surface treatment of the shell: ...

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Abstract

The present invention discloses a hand-holding power tool and a processing method of an outer shell thereof. The hand-holding power tool comprises an outer shell, wherein coatings are arranged on the outer surface of the outer shell. The processing method of the outer shell of the hand-holding power tool comprises the following steps: surface processing of the outer shell: oil degreasing and acid-washing; outer shell preheating: the outer shell is preheated above the melting point of coating material; fluidized bed immersion: the outer shell is immersed in a fluidized bed to enable the coating material to stick on the outer shell; fusion levelling or cross linking solidification: the coating material becomes the coatings on the outer shell by the fusion levelling or cross linking solidification leveling to enable the coatings to compound to the surface of the outer shell and form a compounding product. After plastic-aluminum compounding is made to the surface of the outer shell, corrosion resistance, abrasive resistance and aesthetic property are strengthened. Meanwhile, the surface of the hand-holding power tool is smooth and clean, the tensile strength is high, electric insulation is safer, and the use life is long. The present invention uses a fusion plastic art without poison and pollution, and the product can reach the requirements of international environmental standard and EUP order standard.

Description

technical field [0001] The invention relates to an electric tool and its shell processing method, in particular to a hand-held electric tool and its processing method. It belongs to the field of electric tools. Background technique [0002] With the rapid development of the international social economy, in industrial production, construction industry, mechanical equipment maintenance, and family life, the use of hand-held electric tools such as electric drills, angle grinders, electric planers, hammer drills, impact drills, and electric hammers The use is more and more extensive and popular. Hand-held electric tools currently on the market are sprayed with paint or plastic powder on the surface of the aluminum alloy body and the surface of the handle in order to solve the problems of product corrosion resistance, weather resistance, abrasion resistance, and voltage resistance. The reason is that the sprayed film is thin, easy to fall off, and has a short service life. At t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25F5/02B32B33/00B05D1/22B05D3/00B05D7/24B05D1/32C23G1/12C23C8/40
Inventor 陆金永
Owner 陆金永
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