TW451003B - Physical chemistry electron beam polishing method - Google Patents

Abstract

The present invention is related to a physical chemistry electron beam polishing method, which comprises the control of electrolyte concentration, temperature, and voltage to release charge at a electrode tip in order to make the article to be polished conductive and the electrolyte tank becomes a capacitance tank at the same time. Then put the article in the tank, and there is gas sphere formed between the article and tank solution which produces pseudo plasma space between the article and electrolyte, and the action of electrode attacks the surface of the article to make the surface as smooth as that of a mirror to achieve the object of polishing surface.

Description

< 451〇 ° 3 5. Description of the invention (1) The present invention relates to an electron beam polishing method of physical chemistry, which uses an electrode tip discharge to cause the parabolic electricity to be charged exclusively. At this time, the electrolytic solution tank becomes a capacitor tank. The parabolic object is placed in it, at this time, an air seal is generated between the parabolic object and the bath liquid. The effect of the air seal can form a plasma-like space between the parabolic object and the electrolyte, and pass through the electrode The effect of generating the transfer is to flatten the surface of the parabolic object, so that the parabolic object to be generated is like a mirror surface, and the purpose of surface polishing is achieved. BACKGROUND OF THE INVENTION Traditional electrolytic polishing methods either use low-voltage methods or use high-concentration electrolytes, such as chromium-phosphorus-sulfuric acid electrolyte (AMYampoiski uTravleniyemetallov ", 1980, Metallurgy / Moscow; page 51) It is performed using a DC voltage of 10 to 25V and a temperature of 30-7 (rc.) And an anode current density of 50-60A / dm for 3_ls minutes. In addition, there is another method that contains sulfuric acid with a weight percentage of 20_25% and a temperature of lg- Method for electrolytic polishing of aluminum and its alloy products in an electrolyte of 20e C and a voltage of 6 to 12V (Wi t tC., '' Gal van otechnik '' '1981, ν_72, NO_10, pages 1073-10.). In addition, there is a method of electrochemically conducting conductive material products. Although the product is treated at a high voltage of 22-38V at 3S ° C in an electrolyte containing 20% ammonium chloride aqueous solution (VNDuradzhietal. &Quot; Elektronnaya obrabotka matehaiov " / Electronic mechanism of materials /, 1978, No. 5, 13- 3 This paper is applicable to the standard of Chinese Standard (CNS) Λ4 grid (210X297 mm) ------: --1, ... 袭-, / | \ {Please read the notes on the back first (Fill in this page) Order the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs to print A7 B7 r > 451003 V. Description of the invention (page 17). However, about 30-40% of the products cannot be reflected due to their surface reflection factors- ---- Ί—— !; 'load-/ T1 t, please read the precautions on the back before filling in the buttercup)) to achieve a product with a lighter surface than Ra = 0.28. &Quot; 〇.32um. In addition, this method An electrolyte with a relatively high concentration (20%) is required, which increases the manufacturing cost. In combination with the foregoing methods, high-concentration expensive and toxic solutions are basically used, and it must take considerable time to degrease, etch, and rinse the thrown product first. Etc. In addition, the polishing time is too long, and considerable power and labor are required to have a negative impact on the overall productivity and efficiency. In addition, the high concentration of the electrolyte is not easy to handle, it is easy to cause harm to the environment, it is unthinkable. The purpose of the present invention is to improve the polishing method of the traditional chemical method, which can save pre-treatments such as degreasing, etching and rinsing before polishing the thrown product, and can directly polish, avoiding the need for prior surface treatment and increasing the production process. To the inconvenience and wasted main

丨 U The other purpose of the present invention is to solve the problem of electrolytic polishing of various conductive materials. In the polishing process, it can be cheap, non-toxic and low-concentration liquid, which makes the entire polishing process safer, and the low-concentration electrolyte is more tolerant. It will not cause harm to the ring and strengthen the polishing quality, saving time and cost of polishing. Another objective of the present invention, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, is to provide polished and clean stainless steel products during the electrification process of a conductive material product, which can be applied to various industrial and low carbon steels, copper and its alloys, and aluminum. Polishing, cleaning and tool steel processes of other products are completely suitable for any production technology to explore the electrolyte; 2 harmful and high ecological standards of mechanization and automation process. W 、 This paper size is applicable to China National Standards (CNS) A4 specification (2 丨 οχ297 mm). Printed by consumption of employees of the Intellectual Property Bureau of the Ministry of Printing ^ 5 1 0 〇3 Α7 ______ Β7 Invention Description Another object of the present invention is to solve the problem of electrolytic polishing of various conductive material products, provide fine surface light hubs and roughen them, clean and brighten their surfaces, so as to facilitate subsequent application of preservatives, rust spots, scale, paint and mouth paint. The characteristics of this physical and chemical electron beam polishing method are to maintain a stable gas seal on the surface of the product, to isolate the surface from the electrolyte, and to promote strong chemical and electrochemical interactions between the product material and the anode / electrolytic gas. The anodic oxidation of the metal surface of the product 'results in chemical etching of the oxide. When the oxidation-etching ratio reaches a balance, the polishing effect occurs, increasing the reflectivity of the surface and making good use of its light system (that is,' reducing the degree of rough chain '). The reflectivity is obtained at the minimum thickness of the oxide layer that can suppress the engraved part of the electrolytic gas, and the etching rate occurs first at the smallest irregularity, where the formation The thinnest oxide layer is in addition. The accelerated strength of the electric field through the air-sealing and electrolyte gap of the product causes the apex of the micro-exposed part of the existing product surface to be quickly rounded, so the surface roughness is reduced. It is determined by factors such as applied potential (volts), electrolyte concentration, temperature, and chemical composition. Obviously, the use of too thick electrolytic solution will obviously damage the quality of the parabola, and the metal is liable to etch and reduce the mechanism. Surface brightness (gloss). Similarly, if the temperature is too high, the chemical action of the electrolyte at this temperature will increase and pinholes will be produced, which will also have a negative impact on the quality of the mechanism. If the voltage (potential) is too high, However, the surface roughness of the mechanism is increased due to the breakdown of electricity through the gap between the electrolytes of the electrode products and the resulting tiny holes.

This paper size is in accordance with Chinese solid standard (CNS) A4 specification (210X297 mm) 4510 0 3 A7 B7 V. Description of the invention (middle) Schematic description: Figure 1 is a schematic diagram of the polishing method Figure 2 is the operation flow of the method Figure 3 is the relationship between the voltage u and the temperature t of the electrolyte at different concentrations C. Figure 4 is the relationship between the surface roughness Ra and the reflectance γ and the applied voltage (potential) U. Figure number description: 10 objects to be thrown 20 electrolyte tank 30 gas seal 40 conductive wire The best way to implement the present invention ------.--,] equipment— / ί \ (Please read the precautions on the back before filling this page) Order / tv Economy The Ministry of Intellectual Property Bureau's Consumer Cooperative printed a preferred embodiment. The first mechanical product was 20X3OX2mm3, containing 0.1% C, 18% Cr, 10% N; 1% Ti Fe-a balanced flat anti-corrosive steel work piece. The mechanism time is 2 minutes. 6 This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm > A7 Β7 451003) 5. Description of the invention (<) The initial surface sugar content is Ra = 0.65-0.68 / xm, the initial reflectance is 7 It is 35-38% (for silver mirror). ^ The working mechanism energy rate has been selected from the following range: working voltage, 240-320V; electrolyte, temperature 40-80. C; electrolyte composition, weight 2-6 % Ammonium sulfate aqueous solution. It is recommended that the upper limit of the aforementioned giant garden be selected by the following considerations: In addition, 'the increase in voltage accelerates the power input. Therefore, the first process is subject to the upper and lower limits of the mechanism energy rate; voltage (potential), 320V; electrolyte Temperature, 80 ° C; Electrolyte concentration, 6% by weight 〇 The lower limit of the energy range of the aforementioned process 値 The voltage (potential) 値 V (Figure 3) obtained from the experiment and the electrolyte temperature t with different concentrations c The average graph of the relationship shows that the stable steam, the gas-sealed area and the normal process area in Figure 3 are the upper right area of the electrolyte concentration C line. If the working point selected from this area to the lower left of the curve is equal to the predetermined concentration C , It will break the enclosure Causes the switching of the energy rate of the electrolytic process, that is, the electrolyte intermittently directly contacts the product surface. In such contact areas, traditional electrochemical erosion will occur, causing the reflectivity to drop sharply and increase the surface roughness. In addition, Because the current consumed 値 far exceeds the current consumed in the stabilization process 功率, the power input increases sharply, thereby jeopardizing the regular rating of the mechanism process. Therefore, various methods must be used to avoid the switching rate of electrolytic polishing. Consider the foregoing The upper and lower limits of the electrolytic polishing power are mentioned. The working area on Figure 3 is subject to ΑB (voltage extension cord, BD (electrolyte temperature 7 (please read the precautions on the back before filling out this page).) Printed by the Consumer Cooperatives of the Ministry of Intellectual Property Bureau ______________ Packing --------------- ,, ^ ----------- This paper size is applicable to China® Home Standard ( CNS) 8 specifications (21 × 297 mm) 451003 1 ---- '" V. Description of the invention (b) " t "), and the area of the extension line with DA (electrolyte concentration c). It can be seen that the age of I and the lead lead to the smallest decrease The electrolyte 丨 temperature " t supports a stable process. If the electrolyte concentration c is equal to the temperature and the temperature t and voltage u are close to the lower limit, then a low electrolyte I concentration C with no negative effects is used. The following table [Statistics The results of the product mechanism. | The reflection point of the roughness (surface light Ra) and the reflectivity of the applied voltage (potential) are shown in Figure 4, the curve! Shows the change in surface roughness Ra; curve 2 shows that it does not depend on the example of the disclosed method i, the change of the reflectance 7 on the product mechanism. It can be seen from Figure 4 that the maximum surface roughness Ra obtained from 0 · 6 6-12 m (curve ^ surface roughness Ra in the voltage range of 300-32 0V). The second basic characteristic is reflectivity 7—it can be seen on a similar pattern to reveal the recommended energy rate of 93-95%. It can be confirmed by the characteristic on curve 2. Preferred Embodiment 2 Treat a composite metal product, such as hiding dentures made of corrosion-resistant steel. The pressed part of the denture is made of steel containing 0 I2% c, I8% Cr, 9% Ni, Fe balanced amount, and the middle casting part is made of 0, 戕 C, 1⑽ Cr, 9% Ni, 2% Si, Fe balance steel. The work piece has an initial surface roughness Ra = 0 · 7, .. o.73am 36_38% reflectance (in the case of silver mirrors). The mechanism time is 2 minutes. The working energy rate of composite metal products has been selected from the following ranges: voltage (potential) applied to mechanical products, 33-38 ° V electrolyte temperature 70_90 ° C; electrolyte cost paper size uses Zhongwei National Standard (CNS) ) A4 size (210X297mm) (Please read the notes on the back before filling this page)

• T Ministry of Economic Affairs, Intellectual Property 4. Bureaux X consumes and prints 451003 A7 B7 __- one V. Description of the invention (?), 1-10% potassium sulfate aqueous solution. ^^ 1 · ^^ 1 ^^ 1 HI 4 (Please read the notes on the back before filling in this section) The polishing techniques of traditional composite products assume that they are either machines or electrolysis mechanisms with different energy rates, such as different voltages and The temperature 値 and the different electrolyte components are determined by the combination level of the product structure. It is suggested that a single process can be used to implement the composite (bimetal) product mechanism and increase the surface reflectance of the mechanism. The electrolyte of potassium sulfate aqueous solution can obtain the mirror-like polishing effect of chromium-nickel-silicon steel products. The selection of the operating voltage within 330_38 volts is explained by the fact that the voltage drops to 300-315 volts. Its vapor seal stability is attenuated, and the interruption of the vapor seal causes the process to obtain the switching conversion rate and the current to jump sharply. This will damage the quality of the mechanism and increase the power input significantly. When the voltage rises to 385.4 ν, the reflectance τ and the surface light are Ra. It will be damaged due to the development of traces on the metal surface through the electrode / product-electrolyte gap. -1 bundle sy Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. If the electrolyte concentration drops below 1%, the output of the mechanism operation is impaired, and a higher voltage must be applied to compensate for the low conductivity of the solution. If the electrolyte concentration rises to more than 10%, the metal will be etched first to damage the reflectance. The electrolysis temperature of this example mechanism process that yields the best parameters is 70-10. If the temperature is lower than 70 ° C, the stability of the gas seal will be impaired, and the process will have large current and voltage fluctuations; if the temperature is higher than 90 ° C, the quality of the mechanism will be damaged due to the increase of the electrolyte effect, It also arouses the heat balance between the steam seal and the electrolyte. 0 This paper size is applicable to the Chinese sample rate (CNS) A4 (210X297 mm) 1 5 4 3οο

7 7 AB V. Description of the invention (2) Table 1 Energy efficiency and results of the buckle product mechanism containing 0.1% C 18% Cr 10% N; 1% Ti 1 Electrolyte concentration c% 2 4 Energy efficiency 1 2 3 4 5 6 7 8 9 10 11 UV 340 330 320 330 320 310 330 310 300 290 270 t (° Ο 80 85 90 75 80 S5 60 65 70 80 85 I (A / cm2) 0.22 0 · 2 0.18 0.25 0.22 0,21 0.27 0.24 0.22 0.21 0.2 (锖 First read the notes on the back and then fill out this page) Printed parameter Ra (ilm) 0.52 (Continuous Table 1) 1.06 1.46 0.22 D.3 ^: 0.42 0Λ8 0.14 0.1 0.24 0.86 7 (%) 35 34 33 44 42 39 53 65 92 '47 41 6 7 12 13 14 15 16 17 18 19 Energy UV 330 310 290 250 230 330 270 220 t (° Ο 40 50 65 75 85 45 60 80 I (A / cm2) 0.28 0.24 0.22 0.2 0. .18 0.3 0.27 0.21 Spring number Ra (iZm) 0.22 0.18 0.12. 0.08 0 + 36 0.18 Q.2 0.25 7 (%) 45 65 77 95 56 37 39 36 where υ .ν = Voltage = Current density Ra = Mechanical surface rough chain degree 7 = Mechanical surface reflectance 10 This paper size is applicable to China National Kneading (CNS) A4 specification (210X297 mm)

7 A 451003

B Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (sub) Table 2 The rate and result rate of denture metal sheet by this method mechanism UV electrolyte concentration 0 ¾ 0.8 1 1 390 2 360 3 330 4 310 5 390 6 360 7 330 8 310 Ύ (° / 〇) 35 36 35, 6 36 36 36 36 36 Ra (am) 0.21 0.22 0.3 0.33 0.18 0.16 0.24 0.27 Ύ (%) 35 36 35 35 36 36 36 36 36 Ra (/ im) 0.23 0.25 0.34 0.35 0.19 0.17 0.25 0.29 (Continued Table 2) 3 5 9 10 11 12 13 14 15 16 Energy UV 390 360 330 310 390 360 330 310 Ύ (%) 54 69 63 49 65 91 81 69 Ra (am) 0.15 0 , 11 0.15 0.17 0.13 0 * 09 0.08 0.1 r (%) 53 67 61 49 67 93 79 67 Ra (LLm) 0.15 0.12 0.17 0.16 0.14 0.1 0.09 0.1 7 10 17 18 19 20 21 22 23 24 Energy rate UV 390 360 330 310 390 360 330 310 7 (%) 57 79 85 61 36 39 41 36 Ra (£ ini) 0.13 0.1 0.1 0.12 0.12 0.28 0.22 0.23 7 (%) 61 79 75 63 36 39 43 36 Ra (Um) 0.14 0,11 0.1 0.13 0.27 0.26 0.21 0.23 11 25 26 27 28 Energy UV 390 360 330 310 7 (%) 35 35 35 35 Ra (iim) 0.47 0.45 0 · 41 0 • 43 Ύ (%) 35 36 35 36 Ra (// m) 0.46 0. 44 0. 39 0.4 11 (Please read the notes on the back before filling this page ) This paper size is in accordance with Chinese Standards (CNS) Λ4 specification (210X297 mm) 451003 A7 B7 V. Description of the invention (where uv = voltage 1 = current density Ra = mechanical surface sugar content 7 = mechanical surface reflectance The bad property bureau employee consumer cooperative prints a preferred embodiment 3. The thin-coiled winding mechanism of spray-coated insulated copper with a diameter of 0.4 / Zm and mainly polyester and vinyl acetate enamel is used to remove the insulation layer and scrape the surface of the copper wire. bright. The mechanism energy rate is in the following range: voltage 2000-200v; electrolyte temperature 40-50. C; the electrolyte is an aqueous sodium hydroxide solution. The method disclosed in this example is based on electro-hydraulic processes that perform electrolytic mechanisms. The characteristic of the process is the lack of specific heat of product heating, which hinders the subsequent welding of copper wires, and requires additional operations of oxides that follow the wire phase. Due to the high strength of the electric field and the elevated temperature, the gas seal is a chemically interacting medium that interacts strongly with the surface of the machined product. Therefore, the chemically interacting medium of the gas seal and the localized development of the electrical breakdown place warm up. The insulation 'while cleaning the surface of the steel wire on the remaining traces of the coating β process proceeds as follows: the potential of 200_21 () ν is applied to the copper wire above the immersion part' and now the bare cut and surface field seal are applied. Insulation on the surface of the heated burnt filaments developed by hermetically sealing the discharge channel. When the surface area of the charged insulator becomes a conductor, a gas seal is also developed in this area, removing the remaining insulation and removing the surface into a very clean state. The most effective destruction of the party spray paint occurs at the interface between the cleaned surface of the puppet and the surface still covering the edge of the coin. The active removal of the insulating region rises to the surface of the insulator. ιί- of note

I The size of the side-bound paper is applicable to the Chinese National Standard (CNS) (21Gx297 public director) 4510 03 S V. Description of the invention (d) Selection of working voltage (potential) within 2000-200V y5 Output voltage drop us- iMv is promoted by the fact that the stability of the development of gas seals is impaired. It causes indefinite working energy rate and greatly reduces the process efficiency. When the voltage is increased to 22-230V or higher, it will increase the thickness of the gas seal. The chemical action in water can be avoided by the anode and the electrolyte. Excessive heating of the steel wire at 20 ° · 2ΐ〇ν, the chemical reaction of the f, and the verification of the solution are explained after the coating is completely removed. If the concentration under _ is used, the effect will be increased by more than m, and the solution will be actively used to make the solution, so that # 环境 受 ί 气 -5. . . The temperature range is determined by the following conversion energy 'if the temperature exceeds 5Q. c, then, ^ breaking 20% of the efficiency of the complete removal process of the switch ^ know the thickness of the stomach plus sclera seal and reveal the minimum clearance of the aforementioned copper wire in the square enamel ... seconds; diameter of a copper wire, 16 seconds (modification The energy rate); diameter lm ^ "2 Therefore, it is recommended to completely remove the sowing edge on the copper wire 36 expensive and toxic chemicals and improve the working environment Manul '' avoid the use of Ang 13 (please read the note on the back before filling in (This page) Packaging. Ordered by the Ministry of Economic Affairs, Smart Property A. Printed by the staff consumer cooperative

Applicable to this paper (CNS) A4 «^ (21 ^ X 297 ^ F 45 1 0 0 3 at ___ B7 V. Description of the invention (\ 3) The fourth preferred embodiment is composed of a zinc alloy containing 62% copper and 20 × 30 × 1mm3 flat plate made of pure steel. The mechanism time is 60 seconds. The initial surface roughness Ra = 0.55-O.6ttm, and the reflectivity is 32-35% of the silver mirror. The mechanism energy rate is from the following range Selected in the garden: working voltage, 20-40 ° C electrolyte temperature 40-90 ° C; electrolyte composition, concentration of 0.5-8% aluminum potassium sulfate aqueous solution (or ten 0.5-3% Na2C03, instead of 0.5-6% ammonium citrate; or 0.5-6% ethylammonium tetraacetic acid). The lower limit of the voltage is selected as the air seal formed around the product when the voltage drops below 200V. The fact of the interruption is explained, regardless of whether this type of air seal appears under the basic conditions of the electric power mode. In this state, the mechanism process will greatly increase the current consumption and damage the polishing effect, as if there is no polishing at all. The same, and a layer of dirty black appears on the surface of the product. Change & When the electrolyte gap of the product collapses, pinholes appear on the surface of the product and the polishing gloss is damaged. If the concentration of the solution is lower than 0.5%, it is impossible to maintain the entire working voltage range of 200 to 400V. A stable electromotive force process, so it has a negative impact on the yield of the mechanism process. If it exceeds the upper limit of the concentration, it will first etch and damage the polishing quality. If the temperature of the electrolyte is lower than 40. The stability of the seal is impaired, threatening the interruption of the mechanism process. If the temperature of the electrolyte exceeds 90 ° C, the quality of the mechanism will be compromised by the increase in the chemical action of the electrolyte and the large amount of water caused by the change in solution concentration- ------- ^ τ 装-if. · in '(please read the precautions on the back before filling out this page) Order the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs Du printed I. This paper size applies to China The Gujia Standard (CNS) is printed with specifications (210 > < 297 mm, member of the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives, 4 5 10 0 3 A7 ---__ B7 V. Description of the invention). The aforementioned mechanism can produce I ^ = 0.〇5xt surface roughness 7 = 93- 97% silver mirror reflectance 'Therefore, the mechanism shown in the disclosed method can achieve fine polishing quality, and reduce the mechanism time by one-third and reduce the roll by 8-10 times. The preferred embodiment 5 will be 20X3 × Xrara3's Low-carbon class (carbon content 0.08%) flat product mechanism for 3 minutes. The initial surface roughness Ra = 1.2 "m with 7 = 33_35% silver mirror reflectance. The mechanism energy rate is selected from the following gardens: work Voltage (potential), 240-38V; electrolyte temperature 81-95 »c; electrolyte composition, 0.5-8% gasified ammonium solution. The choice of the lower limit of these ranges is explained as follows: Tests have shown that if the voltage rises above 38-39V, the initial surface roughness R. The increase in power is due to the increase in power erosion caused by the collapse of the product-electrolyte gap. If the voltage drops below 230-240V, the stability of the air seal around the product will be impaired, and the process itself will become unstable, and the current flow will jump sharply up and down. It causes a large increase in the amount of electricity, at the same time causes a negative effect of the final reflectance 7 and increases the surface roughness Ra of the machined product. If the electrolyte temperature is lower than 75_80. C, the process stability is impaired and cannot be recovered by increasing the voltage to 38-40V. If the electrolyte temperature exceeds 95 ° C. (:, Then the chemical effect of the electrolyte is increased and the quality of the mechanism is impaired. The results of the machine manufacturing industry are summarized in Table 3.

1S m · ml n ί · ϋι I an V / ^^ 1 1—- / H / ί .. (Please read the note f on the back before filling out this page) This paper size applies Chinese National Standard (CNS) A4. Grid (210X297 mm) A7 B7 451 〇 〇3 V. Description of the invention (<) Table 3 Energy efficiency and parameters of low carbon steel element (C = 0. 8%) mechanism in gasified ammonium solution (please first Read the note on the back ^ and fill in this page) Electrolysis concentration 0.3 0.5 Density (20 ° C) 1.001 1.001 UV 390 320 260 230 390 320 260 230 T ° C 82 82 84 85 82 85 85 85 7 (%) 34 36 35 34 37 41 38 35 (Continued Table 3) Ra (am) 1.03 1.22 1.14 1.13 1.12 1.06 1.10 1.13 Electrolytic concentration 3 5 Density (20 ° C) 1.008 1.014 UV 390 320 260 230 390 320 260 230 T ° C 84 85 83 83 84 82 82 85 Ύ (%) 49 87 83 61 47 77 67 53 Ra (lira) 10.29 0,23 0.21 0.31 0.68 0.42 0.4 0.51 Electrolysis concentration 8.0 8.5 Density (20 ° C) 1.018 1.019 UV 390 320 260 230 390 320 260 230 r ° c 85 83 83 85 82 82 85 85 7 (%) 35 37 43 35 34 34 35 34 ia (Zirn) 1.2 1,17 1.12 1.15 1.52 1.37 1.32 1.25 J_ Intellectual Property Office, Ministry of Economy Industry and Consumer Cooperatives printed Lingjia's Example 6 in order to extend the life of the electrolyte containing gasification bonds, the concentration will be 0.5-16. This paper size applies to China's national standards ^ milk 丨 from the specifications ⑺ to the public director) Ministry of Economic Affairs wisdom Printed by the Consumer Cooperative of the Property Bureau 4510 0 3 at B7 V. Description of the invention (&) Ammonium vaporization and ammonium thiocyanate are added to the electrolyte, and tests have shown that this method can extend the life of the electrolyte by 50-100%. Θ Over a period of 150 minutes. Processing a batch of 50 products shows that the stability index of the final surface roughness Ra is increased. If the number is increased from 50 to 100 with respect to the same electrolyte, Ra has a negative effect.囡 If using a concentration of 3% by weight and an applied voltage of 3 6 0-260-240V, the final surface roughness (light) of the last one of the 100 batches will be increased to 0.25 respectively. -0.23-0.32 um. If NH4CNS with a concentration of M% by weight is added to the same electrolyte, the increased final surface roughness can be seen only when the whole batch of mechanical products exceeds 100 pieces. Therefore, we have found that if the additives are added to the electrolyte, the life of the electrolyte can be doubled without compromising the final reflectance T of the machined product and the final surface finish Ra. Table 4 summarizes the results of tests performed with electrolytes containing two types of ammonium thiocyanate (NH4CNS) additives. If the concentration of the added additives is less than 0.5% of its weight, there is virtually no effect on the service life of the electrolyte. Regardless of whether the concentration of the additives exceeds 3%, a layer of black will appear on the surface of the product. Use other ratios of NH in the specified range. For C1 and NH4CNS, the test shows similar results: The reflectance 7 of the mechanical products has no effect on the surface light Ra, and the service life of the electrolyte is extended by 50-100%. 17 ---------., ...------ II -------. 4. (Please read the precautions on the back before filling out this page) This paper size applies to China National Standard (CNS) A4 specification (210X297 male foot) 451003 V. Description of the invention (\)) A7 B7 Table 4 Quantity of ammonium electrolyte solution for prolonging the life of the electrolyte by adding ammonium. Number parameters 50 75 100 125 150 NH.C1- 3% 0.25 0.32 0.41 0.6 0.85 Ra (am) 90 69 61 57 53 NH4Cl-3% 0.24 0.25 0.26 0.39 0.39 nh; cns-i% Ra (// m) 90.5 90 89 69 65 t Install the flat plate mechanism of 20 × 3 × 2mm3 in the preferred embodiment 7 for 1 minute. The initial surface roughness Ra = 1.03am and 35% silver mirror reflectance. The mechanism energy rate is selected from the following ranges: working voltage (potential), 26- 40 OV; electrolyte temperature 70-90 ° C; electrolyte composition, 0.5 * · 3% gasified iron solution. In the electro-hydraulic power mode, ferric chloride is used to provide aluminum with a mechanism to increase the surface's reflectivity 7 and light Ra. The upper and lower limits of the concentration result in a polishing effect of 3%. Higher concentrations cause the metal to etch and lose gloss. If the electrolyte with a concentration of 0.5-3% is heated to above C, the quality of the mechanism will cause pinhole damage due to the increased chemical action of the electrolyte. When the voltage exceeds 40 0V, the fine pores caused by the power collapse through the product-electrolyte gap will increase the surface roughness Ra of the mechanism. If the concentration of the electrolyte is below 0.5%, the minimum electricity will still be maintained. 18 This paper size is applicable to the Chinese National Kneading Rate (CNS). A7 B7 451003 V. Description of the invention (\ g) The temperature during the pressing and stabilizing process will rise. If the concentration of the electrolyte is lower than ο · 5% and the temperature is below 60 ° C, for example, the process of the electrolysis mechanism is changed to the switch mode, so that the electrolyte is in regular contact with the surface of the mechanism. Electrochemical anodic erosion was added to the contact area, which impaired the reflectivity of the surface of the mechanism and increased the coarse sugar Ra. In the demonstration, the crude sugar content decreased to 0.3ttm, and the reflectance increased to 73%. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs for consumer cooperation Du printed This paper is sized to the Chinese National Standard (CNS) A4 (210 × 297 mm)

Claims (1)

45 1 〇〇3 find the year δ Application for patent A physical chemistry electron beam polishing method, comprising: an electrolyte tank for containing electric, liquid and polishing elements; a temperature control device; a voltage control device including an electrode device and a gas seal generating device 'It is a conductive wire connected to the above electrode device; its manufacturing process includes the following steps: (A) The electrolyte of different concentrations is prepared according to different paraboloids, and the electrolyte is 1-10%. The focus is to make the electrolytic solution The concentration will not affect its efficiency too much; it will also prevent the quality of the parabolic material from being damaged by excessive concentration. It will make the metal easy to etch and reduce the brightness and gloss of the surface of the mechanism. (B) Adjust the temperature to 70-90 °. The focus is to avoid If the temperature is too low, the stability of the gas seal will cause large current and voltage fluctuations; when the temperature is too high, the mechanism quality will be damaged due to the increase of the electrolyte, and the heat balance between the gas seal and the electrolyte will be affected, (C) Adjust the voltage to 24-40V. Excessively high voltage can easily cause the collapse of the product and electrolyte gap and cause erosion. If the voltage is too low, the stability of the gas seal around the product will be damaged. • For example, the physical and chemical electron beam polishing method of the patent application Fanyuan No. 1, in which 0.5 to 3% of ammonium vaporized ammonium thiocyanate and ammonium thiocyanate are added to the electrolyte, after experiment 5 and tested in extended chlorine Ammonium and sulfur bond electrolytes have a long life. 20 This paper is in use «National Standards (CNS) A4 Washing (210X297 mm) (Please read the note on the back before filling in this page) ii. Consumption Cooperation by Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs system