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Surface processing method for heating element

A surface treatment and heating element technology, applied in the field of surface treatment of the heating element of the hair dryer, can solve the problems of fast speed, energy waste, slow speed, etc., and achieve the effects of reducing convection, improving thermal efficiency, and strengthening radiation

Inactive Publication Date: 2010-09-22
MIDEA GRP CO LTD
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Problems solved by technology

It can be seen from the above that the convective transfer of heat energy must first heat the medium, which will inevitably result in waste of energy and the disadvantages of slow speed, while radiation transfers heat energy to the heated body at the speed of light to be absorbed, and the speed is fast

Method used

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with a preferred embodiment of the present invention.

[0017] The method for treating the surface of the heating element includes the steps of degreasing, roughening, cleaning, curing, spraying and sintering.

[0018] 1. Degreasing

[0019] Connect the wound heating element with 220V AC, and use the high temperature of the heating element to burn the grease. In this process, the power-on time must be controlled according to the characteristics of the heating element to ensure that the maximum temperature of the heating element is lower than its fusing temperature. The power-on time t can be calculated by the following formula, t=c*m*ΔT*R / U 2

[0020] in:

[0021] c = resistance wire specific heat

[0022] m = resistance wire mass

[0023] ΔT = temperature rise

[0024] R = resistance wire resistance

[0025] U = input voltage

[0026] 2. Coarsening

[0027] The air pressure is kept at 0.5-0.6...

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Abstract

The invention relates to a surface processing method for a heating element, which comprises the following steps sequentially: degreasing, i.e. adopting a method of powering on the heating element to remove surface oil; coarsening, i.e. adopting a sand-blast method to make the surface of the heating element coarsened; cleaning, i.e. adopting high pressure air to blow out impurities on the surface of the heating element; curing, i.e. filtering the impurities in the process of sufficiently uniformly dispersing coating; spraying, i.e. uniformly spraying the coating on the surface of the heating element; and sintering, i.e. carrying out sintering on the sprayed heating element to form a membrane. The surface processing method for the heating element strengthens radiation of the heating element and reduces convection so as to improve heat efficiency by spraying the coating on the surface of the heating element.

Description

technical field [0001] The invention relates to a surface treatment method of a heating element, in particular to a surface treatment method of a heating element of a hair dryer. Background technique [0002] There are three basic ways of heat transfer: conduction, convection, and axial. Conduction refers to the energy transfer process that occurs by virtue of direct contact between different objects or between parts within the same object. Convection is the energy transfer process that occurs when a solid surface comes into direct contact with a gas or liquid. Radiation refers to the energy transfer process between different objects through energy-carrying electromagnetic waves. The process of drying the hair by the hair dryer is actually a process of transferring the energy of the heating element to the hair through convection and radiation. It can be seen from the above that convective transfer of heat energy must first heat the medium, which will inevitably result in ...

Claims

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Application Information

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IPC IPC(8): C23C24/08
Inventor 杨明元魏贤方
Owner MIDEA GRP CO LTD
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