Cleaning medicine and method for cleaning metallic surface using same

A technology for medicines and cleaning tanks, applied in the directions of cleaning methods, cleaning methods and utensils, chemical instruments and methods using liquids, etc., can solve the problem of high cost of pharmaceuticals, and achieve the effect of obvious effect and cost reduction

Inactive Publication Date: 2008-09-17
SHENZHEN FUTAIHONG PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing methods for cleaning the surface of metal workpieces in portable electronic device

Method used

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Embodiment Construction

[0013] Introduce in detail below the composition of cleaning medicine of the present invention, it comprises the sodium hydroxide (optimal weight percentage is 28.24%) that weight percentage is 27%~30%, the weight percentage is 6%~9% sodium polyphosphate (optimum weight percentage is 7.06%), weight percentage is 48%~51% sodium metasilicate (optimum weight percentage is 49.41%), weight percentage is 2%~5% sodium dodecylbenzenesulfonate (best weight percentage is 3.76%), weight percentage is 8%~11% sodium carbonate (best weight percentage is 9.18%) and weight percentage is 1%~4% alkylphenol polyoxyethylene ether (best weight percent is 2.35%).

[0014] The following describes in detail the method for cleaning the metal workpiece surface using the cleaning chemicals described in the preferred embodiments of the present invention:

[0015] First, place the metal workpiece to be cleaned in a holding jig, cover the cover and fix the metal workpiece to prevent it from falling off (i...

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Abstract

The invention discloses a cleaning drug and a method of using the cleaning drug to clean metal work surfaces and remove the impurities on the metal work surfaces. The cleaning drug contains compositions in the following weight percentages: sodium hydroxide 27%-30%,sodium polyphosphate 6%-9%, sodium metasilicate 48%-51%, sodium dodecyl benzene sulfonate 2%-5%, sodium carbonate 48%-51% and alkylphenol polyoxyethylene 1%-4%. The method of using the cleaning drug to clean metal work surfaces includes the following steps: putting the metal work in a scouring reservoir with the aqueous solution containing the cleaning drug by concentration of 3%-5% for soaking; taking the metal work which undergoes surface derusting and cleaning out from the scouring reservoir, putting in pure water for water washing; and carrying out dry processing to the water washed metal work.

Description

technical field [0001] The invention relates to a cleaning medicine and a method for cleaning metal surfaces using the cleaning medicine. Background technique [0002] With the rapid development of economy and technology and the improvement of people's living standards, the use of various portable electronic devices such as mobile phones, personal digital assistants (Personal Digital Assistant, PDA), MP3 players, etc. is becoming more and more popular. In addition to requiring these portable electronic devices to meet their functional requirements, consumers also put forward higher requirements on the appearance of the portable electronic devices, hoping that the portable electronic devices have beautiful appearance, bright color and durability. Nowadays, the casings of various portable electronic devices gradually begin to replace the existing plastic casings with metal casings with beautiful appearance, metallic luster and texture. [0003] Since the metal casing of porta...

Claims

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Application Information

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IPC IPC(8): C23G1/14B08B3/12
CPCC23G1/19C11D3/08C11D3/06C11D3/10C11D1/72C11D1/83C11D11/0029C11D1/22
Inventor 许红海任正江丁江荣刘吉凯
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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