Phosphorus bronze filler oxidation process

Abstract

The invention discloses a phosphor bronze filler oxidation process. The process comprises the following steps: S1, feeding materials into an ultrasonic heating tank; s2, operating the ultrasonic heating tank, and heating the ultrasonic heating tank to a specified temperature; s3, after the surface of the filler is cleaned, the filler is loaded into an ultrasonic heating pool to be oxidized; s4, in the oxidation process, observing the color purity of the oxidized filler; s5, after oxidation work is completed, the filler is lifted up; s6, the filler is rinsed; and S7, airing the filler. The filler is subjected to oxidation treatment, so that the wear resistance and corrosion resistance of the filler are improved; the filler is oxidized through sodium chlorite and sodium hydroxide, in the reaction process, the filler is moved up and down through the travelling crane, reaction liquid in the heating tank circularly moves through the ultrasonic unit and the circulating unit, the concentration distribution is uniform, the oxidation blackening effect of the surface of phosphor bronze is good, oxidation is more uniform and thorough, and the production efficiency is improved. And the ash falling phenomenon of the blackening layer is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of filler processing, in particular to the technical field of phosphor bronze filler oxidation process. Background Art

[0002] The main purpose of copper oxidation blackening process is matte, decoration and anti-corrosion; through oxidation blackening treatment, a dense black oxide film can be formed on the surface of copper products, improving the wear resistance and corrosion resistance of copper products.

[0003] The existing phosphor bronze oxidation process is to place the metal in a reaction tank and react with the reaction liquid in the reaction tank for oxidation. The oxide film processed by this oxidation process has uneven oxidation and the black layer has graying, and the oxidation effect is not good. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a phosphor bronze filler oxidation process that can solve the above problems.

[0005] To achieve the above object, the present invention proposes a phosphor bronze filler oxidation process, comprising the following steps: S1, feeding materials into the ultrasonic heating tank; S2, operating the ultrasonic heating pool to heat the ultrasonic heating pool to a specified temperature; S3, after cleaning the surface of the filler, place the filler into the ultrasonic heating pool for oxidation; S4. During the oxidation process, observe the color purity of the filler after oxidation; S5. After the oxidation work is completed, lift the filler; S6, rinsing the filler; S7. Let the filler dry.

[0006] Preferably, S1 is: calculating the feed amount according to the size of the heating pool, adding pure water and chemical reagents into the heating pool, stirring evenly, and the amount of pure water should overflow the reflux water inlet.

[0007] Chemical reagents include sodium hydroxide and sodium chlorite.

[0008] Preferably, S2 is: covering the ultrasonic heating pool with a heat preservation cover, turning on the heating switch, the ultrasonic switch and the circulating water pump switch on the control cabinet, heating the liquid in the pool to a specified temperature, and then opening the heat preservation cover.

[0009] Preferably, S3 is: placing the filler on an oxidation tray, and then using a crane to lift the filler into an ultrasonic heating pool. After the liquid in the pool submerges the filler, during the reaction process, the filler is lifted up and down by the crane to move up and down below the liquid surface. The ultrasonic unit vibrates the reaction liquid, and the reaction liquid is circulated through the circulation unit.

[0010] Preferably, S4 is: observing the color depth of the filler and the edging, if the color is too light, chemicals need to be added; when the liquid cannot flow back through the reflux inlet, pure water needs to be added to ensure that the liquid in the pool can always circulate through the reflux inlet.

[0011] Preferably, S5 is: lifting the filler, moving it to above the ultrasonic heating pool, and leaving it to stand for a period of time, so that most of the liquid attached to the filler flows back into the oxidation pool.

[0012] Preferably, the S6 comprises the following steps: S6.1: The oxidized filler is hoisted into the primary rinsing tank for the first rinse. The filler is moved up and down during rinsing. After the first rinse, the filler is transported to the filler cleaning area and rinsed on both sides with pure water. The pure water in the primary rinsing tank is continuously fed, and the bottom valve is slightly opened to discharge water. S6.2: The filler is lifted to the second cleaning tank for heated rinsing, during which the filler is lifted up and down, and then rinsed with pure water; S6.3: Hanging the filler into an ultrasonic rinsing tank, performing ultrasonic rinsing, and then washing with pure water; the pure water in the ultrasonic rinsing tank is continuously fed; S6.4: Use pH test paper to test whether the liquid flowing out of the filler is qualified. The number of random inspections is guaranteed to be once per tray, and the color of the pH test paper is controlled at 6-7 levels.

[0013] Preferably, S7 is: placing the filler in a single layer on a clean plastic tray for drying, turning the filler over as a whole for drying, and checking whether there is alkali return at the bottom of the filler. If alkali return is found, re-oxidation or re-rinsing is required.

[0014] Preferably, the ultrasonic heating pool includes an oxidation pool, a control unit and a circulation device, wherein an oxidation trough is provided in the oxidation pool, an ultrasonic unit and a heating unit are provided in the oxidation trough, a reflux water inlet is provided above the oxidation trough, the reflux water inlet is connected to the circulation device through a reflux pipe, a circulation water outlet is provided below the oxidation trough, the circulation water outlet is connected to the circulation device through a water inlet pipe, and a crane is provided above the ultrasonic heating pool.

[0015] The beneficial effects of the present invention are as follows: the present invention performs oxidation treatment on the filler, forms a black oxide film on the surface of the metal filler, and improves the wear resistance and corrosion resistance of the filler; the present invention oxidizes the filler by using sodium chlorite and sodium hydroxide, and during the reaction process, the filler is moved up and down by a crane, and the reaction liquid in the heating pool circulates through an ultrasonic unit and a circulation unit, and the concentration distribution is uniform, the oxidation blackening effect of the phosphor bronze surface is good, the oxidation is more uniform and thorough, and the graying phenomenon of the blackening layer is significantly improved, which greatly improves the firmness of the phosphor bronze surface oxide layer.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an ultrasonic heating cell of the present invention; Figure 2 is a schematic diagram of an ultrasonic unit of the present invention; Figure 3 It is a schematic diagram of a circulation unit of the present invention. DETAILED DESCRIPTION

[0018] See also Figure 1 , Figure 2 , Figure 3 , a phosphor bronze filler oxidation process, comprising the following steps: S1, feeding materials into the ultrasonic heating tank; Calculate the amount of material to be added according to the size of the heating pool, and add pure water and chemical reagents into the heating pool. The amount of pure water should overflow the reflux water inlet. The chemical reagents are sodium chlorite and sodium hydroxide. S2, operating the ultrasonic heating pool to heat the ultrasonic heating pool to a specified temperature; Put on the thermal insulation cover of the ultrasonic heating pool, turn on the heating switch, ultrasonic switch and circulating water pump switch on the control cabinet, heat the liquid in the pool to the specified temperature, and then open the thermal insulation cover; S3, after cleaning the surface of the filler, place the filler into the ultrasonic heating pool for oxidation; Phosphor bronze filler is degreased and rinsed with pure water before production. After washing, most of the water is dried and placed on an oxidation tray. Then, a crane is used to lift the filler into an ultrasonic heating pool. After the filler is submerged in the liquid in the pool, during the reaction process, the filler is lifted up and down by the crane to move up and down below the liquid surface. The ultrasonic unit vibrates the reaction liquid, and the reaction liquid is circulated through the circulation unit. S4. During the oxidation process, observe the color purity of the filler after oxidation; After oxidation, the surface of the packing turns black. If the packing edge is made of stainless steel and turns golden yellow, if the color depth of the packing and the edge is lighter than the above color, add chemicals and the amount of pure water to see if it can flow over the reflux normally; S5. After the oxidation work is completed, lift the filler; After the filler is lifted, it is moved above the ultrasonic heating pool and left to stand for a period of time so that most of the liquid attached to the filler flows back into the oxidation pool; S6, rinsing the filler; S6.1: The oxidized filler is hoisted into the primary rinsing tank for the first rinse. The filler is moved up and down during rinsing. After the first rinse, the filler is transported to the filler cleaning area and rinsed on both sides with pure water. The pure water in the primary rinsing tank is continuously fed, and the bottom valve is slightly opened to discharge water. S6.2: The filler is lifted to the second cleaning tank for heated rinsing, during which the filler is lifted up and down, and then rinsed with pure water; S6.3: Hanging the filler into an ultrasonic rinsing tank, performing ultrasonic rinsing, and then washing with pure water; the pure water in the ultrasonic rinsing tank is continuously fed; S6.4: Use PH test paper to test whether the liquid flowing out of the filler is qualified. The number of random inspections is guaranteed to be once per tray, and the color of the PH test paper is controlled at 6-7 levels; The filler must not be dragged during the entire rinsing process, and large-diameter fillers should be carried by two people; S7, drying the filler; Place the filler in a single layer on a clean plastic tray for drying. Turn the filler over during drying and check whether there is alkali reversion (white spots) at the bottom of the filler. If alkali reversion is found, re-oxidation or re-rinsing is required.

[0019] The filler must not be dragged during the entire drying process, and large diameter fillers should be carried by two people.

[0020] This process uses a special ultrasonic heating pool, which includes an oxidation pool 1, a control unit 2 and a circulation device 3. The oxidation pool 1 is provided with an oxidation tank 11, and the oxidation tank 11 is provided with an ultrasonic unit 4 and a heating unit 5. A reflux water inlet 12 is provided above the oxidation tank 11, and the reflux water inlet 12 is connected to the circulation device 3 through a reflux pipe 6. A circulation water outlet 7 is provided below the oxidation tank 11, and the circulation water outlet 7 is connected to the circulation device 3 through a water inlet pipe 8; the ultrasonic unit 4 includes an ultrasonic generator and an ultrasonic vibration plate 41, and the ultrasonic The wave generator is connected to the ultrasonic vibration plate 41, the ultrasonic generator is set in the control unit 2, and the ultrasonic vibration plate 41 is installed in the oxidation tank 11; the ultrasonic vibration plate 41 is installed on the bottom wall and side wall of the oxidation tank 11; the heating unit 5 includes a heater 51 and a temperature controller, a temperature sensor is provided in the oxidation tank 11, the temperature sensor is connected to the temperature controller, the heater 51 is connected to the temperature controller, the temperature controller is set in the control unit 2, and the heater 51 is installed on the bottom wall and side wall of the oxidation tank 11; four groups of heaters 51 The inner walls of the oxidation tank 11 are symmetrically distributed around the center; a circulating water outlet plate 9 is provided on the inner walls around the oxidation tank 1, and the circulating water outlet plate 9 matches the side wall width of the oxidation tank 11, and a plurality of circulating water outlets 7 are opened on the surface of the circulating water outlet plate 9, and a circulating water nozzle is installed on the circulating water outlet 7, and a water outlet channel is provided in the circulating water outlet plate 9, and the water outlet channel is connected to the water inlet pipe 8, and the circulating water outlet 7 is connected to the water outlet channel, and a circulating water pump 10 is provided on the water inlet pipe 8; a thermal insulation layer 13 is provided in the wall of the oxidation tank 1, and the oxidation tank 1 A removable insulation cover 14 is provided at the top of the trough 11; the circulation device 3 includes a box body 31, a buffer plate 32 is provided in the box body 31, and the buffer plate 32 divides the box body 31 into a water inlet chamber 33 and a water outlet chamber 34, the water inlet chamber 33 and the water outlet chamber 34 are connected at the top, and the bottom of the water inlet chamber 33 and the water outlet chamber 34 are separated by the buffer plate 32, and through holes 35 are provided on both sides of the bottom of the buffer plate 32, and the bottom of the water inlet chamber 33 and the water outlet chamber 34 are connected through the through holes 35, the reflux pipe 6 is connected to the top of the water inlet chamber 33, and the water inlet pipe 8 is connected to the bottom of the water outlet chamber 34.

[0021] During the reaction, the crane drives the filler to move up and down in the reaction liquid to make it react evenly. At the same time, the reaction liquid moves continuously through the circulation unit and the ultrasonic unit to keep the concentration and temperature consistent everywhere, allowing it to react quickly and evenly with the filler.

[0022] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A phosphor bronze filler oxidation process, characterized in that: The following steps are involved: S1, feeding materials into the ultrasonic heating tank; S2, operating the ultrasonic heating pool to heat the ultrasonic heating pool to a specified temperature; S3, after cleaning the surface of the filler, place the filler into the ultrasonic heating pool for oxidation; S4. During the oxidation process, observe the color purity of the filler after oxidation; S5. After the oxidation work is completed, lift the filler; S6, rinsing the filler; S7. Let the filler dry.

2. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The step S1 is: calculating the feeding amount according to the size of the heating pool, adding pure water and chemical reagents into the heating pool, the amount of pure water should overflow the reflux water inlet, and the chemical reagents are sodium chlorite and sodium hydroxide.

3. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The step S2 is: putting on the heat preservation cover of the ultrasonic heating pool, turning on the heating switch, the ultrasonic switch and the circulating water pump switch on the control cabinet, heating the liquid in the pool to a specified temperature, and then opening the heat preservation cover.

4. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The S3 is: placing the filler on the oxidation tray, and then using a crane to lift the filler into the ultrasonic heating pool. After the liquid in the pool immerses the filler, during the reaction process, the filler is lifted up and down by the crane to move up and down below the liquid surface. The ultrasonic unit vibrates the reaction liquid, and the reaction liquid is circulated through the circulation unit.

5. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The S4 is: observe the color depth of the filler and the edging, if the color is too light, it is necessary to add chemicals; when the liquid cannot flow back through the reflux inlet, it is necessary to add pure water to ensure that the liquid in the pool can always circulate through the reflux inlet.

6. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The step S5 is: lifting the filler, moving it to the top of the ultrasonic heating pool, and leaving it to stand for a period of time, so that most of the liquid attached to the filler flows back into the oxidation pool.

7. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The S6 comprises the following steps: S6.1: The oxidized filler is hoisted into the primary rinsing tank for the first rinse. The filler is moved up and down during rinsing. After the first rinse, the filler is transported to the filler cleaning area and rinsed on both sides with pure water. The pure water in the primary rinsing tank is continuously fed, and the bottom valve is slightly opened to discharge water. S6.2: The filler is lifted to the second cleaning tank for heated rinsing, during which the filler is lifted up and down, and then rinsed with pure water; S6.3: Hanging the filler into an ultrasonic rinsing tank, performing ultrasonic rinsing, and then washing with pure water; the pure water in the ultrasonic rinsing tank is continuously fed; S6.4: Use pH test paper to test whether the liquid flowing out of the filler is qualified. The number of random inspections is guaranteed to be once per tray, and the color of the pH test paper is controlled at 6-7 levels.

8. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The step S7 is: placing the filler in a single layer on a clean plastic tray for drying, turning the filler over as a whole for drying, and checking whether there is alkali return at the bottom of the filler. If alkali return is found, re-oxidation or re-rinsing is required.

9. The phosphor bronze filler oxidation process according to claim 1, characterized in that: The ultrasonic heating pool comprises an oxidation pool (1), a control unit (2) and a circulation device (3). The oxidation pool (1) is provided with an oxidation trough (11), and the oxidation trough (11) is provided with an ultrasonic unit (4) and a heating unit (5). A return water inlet (12) is provided above the oxidation trough (11), and the return water inlet (12) is connected to the circulation device (3) via a return pipe (6). A circulation water outlet (7) is provided below the oxidation trough (11), and the circulation water outlet (7) is connected to the circulation device (3) via a water inlet pipe (8). A crane is provided above the ultrasonic heating pool.

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