CN1721086A

CN1721086A - Novel metal surface layer cleaning method

Info

Publication number: CN1721086A
Application number: CN 200410063099
Authority: CN
Inventors: 任连杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-17
Filing date: 2004-07-17
Publication date: 2006-01-18

Abstract

For the thermodynamic equilibrium of metal material thermal expansion, gas permeability and metal inner and out environment, the transfer expand of metal inner thermal kinetic energy to metal outside makes the absorption and vibration clean for impurity of liquid grease, water ,gas, carbide and oxide. It is good way to realize no-pollution energy-consumption metal clean.

Description

A kind of new metal surface layer cleaning method

Background technology

Heat treatment of existing metal surface and surplus layer are handled; Only emphasize that cleaning surfaces emphasizes.Village's material is to the tack of metal surface, cleaning to the metal surface also is to utilize external force basically, as carry out the surface sand-blasting cleaning, from metal surface research the metal surface cleaning is cleaned as pickling, alkali cleaning surface oxidation metal surface laser cleaning ultrasonic surface.The research metal erosion.Summary of the invention, on the metal machining surface roughness, any metal has been described, no matter how meticulously process, its surface also is Figure 12 zigzag fashion, by crest not of uniform size, crystal structure Fig. 3 that trough is formed from the microcosmic material, any speciality all has certain air penetrability, but we see by Fig. 4 with regard to metal so, promptly can regard metallics as with a lot of pores cellular-shaped cavernous body.And form by many different troughs not of uniform size at the arbitrary trough of this cavernous body, here be referred to as these troughs with certain air permeability not of uniform size is irregular gap, and prior art to want clean Surface all be in certain chemical balance, solubility, the permeability physical reactions carries out under the conditions such as laser cleaning high temperature.This has just determined to also have and a large amount of has continued to clog the irregular gap of trough middle part, bottom as bottle stopper as impurity such as high temperature cabonization thing grease type oxides.These same place crests separately in troughs bottom, irregular gap, the mean value of crest and trough all has certain distance.That is to say that all kinds of impurity that are not eliminated on average are that certain depth distance is being arranged with the metal surface, therefore, at this moment I claim me this hot capacity metal heat expansion when the metal external environment carries out the molecular heat balance exercise of utilizing metal inside to produce, utilize the transmission of molecular heat, the method on diffusion clean metal surface is called a kind of new matallic surface layer cleaning method.

Concrete this kind method of implementing is equally applicable to all kinds of various metals, every kind of metal needs will guarantee that the condition that design performance requires is also different, metal difformity not of the same race, the time that heating is outwards loose requires cleannes to require size also different to the metal surface, and the method that the present invention is pure, do not relate to concrete calculating, below I just illustrate a kind of practicality of new metal surface layer cleaning method with a kind of metal.(vacuum tank) I just with our the most frequently used metal of living: iron-carbon alloy is that example illustrates its technology, relates to airtight container at a capacity 3M ³Sealed in the sealed vacuum container of glass window of the high temperature resistant gloves of high-temperature insulation electric wire band that feed transformer frequency response, (long 1M) places the 45# modifier treatment grinding axle (underlay adds the vibration damping high-temperature resistant rubber) of a long 2m diameter 50 on 5 bar insulation heat resisting bricks, the A3 cold drawing of 2 0.5m * 2M * 1,5 children cycle frame that do not spray paint, three groups and connection behind 3 groups of metalwork series wirings, it is positioned in the airtight container, transformer voltage 36V, electric current 100A, do not connect power supply, fire resistant electric wire connects all metalworks in the container, 1 negative atmosphere crimping vacuum-tight container of vacuum pumping pump, a high-frequency generator, 3 temperature-sensitive inductance thermo detectors connect axle or bicycle rack or cold drawing respectively, connect power supply, metalwork heats up.

Because iron-carbon alloy is the removal stress tempering temperature of its stable dimensions and metallicity thereof at 100 ℃-250 ℃, 100 ℃ is the vapourizing temperature of water, the gasification temperature of liquid oil gas is also low, therefore the minimum and maximum heating temperature of iron-carbon alloy is 100～250 ℃, the temperature that vacuumizes is decided to be 0～100 ℃, here the heating-up temperature of metal is 200 ℃, when being raised to 50 ℃, metal temperature begins to be evacuated to gradually negative 1 atmospheric pressure, temperature controller outage insulation vacuumizes continuation when metal temperature arrives 200 ℃.When temperature is raised to 100 ℃, use dither, utilize high temperature resistant gloves each metalwork in the vibration container off and at observation window window place, and the linear expansion coefficient of 0～200 ℃ of iron-carbon alloy is 11.3～13/10 ^-6/ ℃, and liquefied gas is easy evaporation carbide, oxide is less than the expansion rate of iron-carbon alloy, like this under the effect of vibration wave, various impurity come off naturally, hot-air is sucked away a part with the hypotensive effect of vacuum, and has played the performance of stable iron-carbon alloy again, reduces effect cold rolling, welding stress.The fatigue damage of metal shaft and metal, cavitation erosion greatly reason is a power transmission shaft in operation process clocklike, produce vibration wave clocklike, in metal, itself reach in the warm-up movement of environment, make the carbide in the irregular gap, oxide impurity comes off, impact other parts or the coating for metal surfaces that cooperate with axle, other component of coatings is come off make metal cross the nonirrigated farmland corrosion and damage, the variation of mechanized operating day by day along with each each process velocity of row of China, to deepization day by day of various developments of resources, the trend day by day of mechanical environment is abominable, the high temperatureization day by day of earth environment, this phenomenon is abominable day by day, requires the interior cleaning of metal also to become more and more important.

Because of the resistance difference of all kinds of big or small metals, it heats up also different again, but this method iron-carbon alloy to different cultivars between 100～250 ℃ all has the unexistent advantage that can improve alloy property of other prior art.And this method is used pure physical method, by metal directly as the heat up loss of the power conversion avoided luminous energy, electric light wave energy of resistance, equipment is easily processed, and is applicable to different industries, different sizes, cleaning processing in the time of different metals, pollution-free, the possibility of personal injury is minimum, and big all suitable on a small scale, cost is low, is specially adapted to the interior cleaning in all kinds of tubing.Therefore my invention this method.

That is: Fig. 1 is a metal surface roughness figure

Fig. 2 is the figure on the Wave crest and wave trough face in the roughness of metal surface.

Figure 12 is being collectively referred to as of Fig. 1, Fig. 2

Fig. 3 is the crystal structure figure of material

Fig. 4 is the irregular gap figure of the cellular-shaped crystal structure of material

Claims

1. one or several of one or several metals or different metal, under different mode of heating effects, guarantee 0～600 ℃ of a heating interval, 0～600 ℃ of the temperature range that requires different metal design performance, a kind of metal is with the different nonmetallic substances that are adsorbed on this metal surface, impurity such as grease, water, air and solids carbide, oxide.Different liquid gasification temperatures, different coefficient of thermal expansions.In comprising zero～negative 50 atmospheric spaces, metal is heated gradually.Because any material all has certain air penetrability, make heat motion of gas molecules aggravation in the metal, produce the hot kinetic energy that the hot kinetic energy of gas molecule transmits to the metal external diffusion in the metal, make thermal expansion metal, make metal and the carbide that is adsorbed on metal surface, oxide break away from the absorption with metal surface, liquid is gasified gradually.Under the impact shock that the different force mode is arranged, make the gas, the liquid solid impurity that are adsorbed on metal surface break away from metal surface as much as possible, reach a kind of method of metal surface cleaning

2, according to power 1: different metal refers to gold, silver, copper, iron, aluminium, titanium, iron-carbon alloy, copper alloy, aluminium alloy, titanium alloy.

3. according to claim 1: different mode of heatings refers to coal-fired heating, combustion gas heating, fuel Heating, resistance heated, the heating of electromagnetism heating luminous energy, the heating of electric light ripple, high-frequency heating, heating in medium frequency, low frequency heating.

4. according in the claim 1: the temperature that the design performance of different metal requires.Because the different metal performance change is variant under heating condition.Be the example explanation just now, and include claim in iron-carbon alloy of using always in our life and the impurity that is adsorbed on its top layer.Iron-carbon alloy is its various internal stress of removal at 100 ℃～250 ℃, improves metal toughness, does not reduce intensity, the hardness of metal, improves metal dimension, the interval of stability.

And 100 ℃～250 ℃ also be the temperature range of the gasification of general liquid, grease water.

According to claim 1: refer to 1 atmospheric pressure here comprising between 1 one～negative 50 atmospheric appearances.

5. according to claim 1: under the impact shock of different force mode, refer to.Pressure-air, high-pressure cleaning liquid impact, dither, and sandblast impact, shot-peening impact, manual force is beaten impact.