A process for the manufacture of a corrosion resistant coated alloy saw blade

Abstract

The application discloses a manufacturing process of a corrosion-resistant coated alloy saw blade, which comprises the following steps: putting mixed alloy powder into an alloy saw blade mold for pressure forming; high-temperature sintering the formed alloy saw blade; taking out the sintered alloy saw blade, and performing plane grinding and edge grinding treatment on the alloy saw blade; cleaning and drying the alloy saw blade, and then welding a diamond cutter head; performing sand blasting treatment on the alloy saw blade with the welded diamond cutter head; providing corrosion-resistant paint; filtering the prepared corrosion-resistant paint through a 500-mesh filter screen, loading the corrosion-resistant paint into a spray gun, and then spraying the alloy saw blade obtained in step d; and placing the sprayed alloy saw blade in an oven at 790-820 DEG C for 5-10 min, and then taking out the alloy saw blade to obtain a finished product. The alloy saw blade is coated with corrosion-resistant paint on the surface of the alloy saw blade substrate, so that a dense corrosion-resistant film layer is formed, water vapor erosion is isolated, and thus, oxidation and rusting are avoided, and the service life is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of alloy saw blade technology, specifically, it relates to a manufacturing process for a corrosion-resistant coated alloy saw blade. Background Technology

[0002] Saw blades are a general term for thin, circular cutting tools used to cut solid materials. Saw blades can be divided into: diamond saw blades for stone cutting; high-speed steel saw blades for metal cutting; and carbide saw blades for cutting solid wood, furniture, engineered wood, aluminum alloys, aluminum profiles, steel plates, and plastic steel. In addition, carbide saw blades can also be used to cut metal parts covered with rubber. Existing alloy saw blades have the disadvantage of corrosion and rust. When exposed to air for a long time, they are corroded by moisture and rust appears on the surface, which seriously affects the cutting accuracy and efficiency of the alloy saw blades and greatly reduces their service life.

[0003] Therefore, there is an urgent need for a new type of alloy saw blade technology with a corrosion-resistant coating. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a manufacturing process for a corrosion-resistant coated alloy saw blade, so as to avoid the troubles of previous alloy saw blades being easily corroded by moisture, surface corrosion, and having low durability.

[0005] To address the aforementioned technical problems, this invention discloses a manufacturing process for a corrosion-resistant coated alloy saw blade, comprising: Step a. Place the mixed alloy powder into the alloy saw blade mold and press it into shape. The forming pressure is 2000-3000 tons. Step b. Sinter the formed alloy saw blade at a high temperature, between 1350℃ and 1450℃; Step c. Remove the sintered alloy saw blade, perform surface grinding and edge grinding, clean and dry it, and then weld on the diamond cutting head; Step d. Sandblast the alloy saw blade with the welded diamond tip; Step e. Provide a corrosion-resistant coating, which comprises, by weight, 30-50 parts of fluorocarbon resin, 25-45 parts of epoxy resin, 12-23 parts of quartz powder, 8-14 parts of titanium dioxide, 2-9 parts of potassium nitrate, 5-7 parts of sodium fluorosilicate, and 8-15 parts of toluene. Step f. Filter the mixed and prepared corrosion-resistant coating through a 500-mesh filter, load it into a spray gun, and spray it onto the alloy saw blade obtained in step d. Step g. Place the coated alloy saw blade in an oven at 790-820℃ and keep it warm for 5-10 minutes to obtain the finished product.

[0006] According to one embodiment of the present invention, the corrosion-resistant coating in step e above comprises, by weight, 40 parts of fluorocarbon resin, 35 parts of epoxy resin, 18 parts of quartz powder, 11 parts of titanium dioxide, 5 parts of potassium nitrate, 6 parts of sodium fluorosilicate, and 12 parts of toluene.

[0007] According to one embodiment of the present invention, the thickness of the above-mentioned corrosion-resistant coating is 140-360μm, the spray gun voltage is 70-100KV, and the powder output is 60-100%.

[0008] According to one embodiment of the present invention, the alloy powder is selected from 11-15% molybdenum, 3.1-4.7% tungsten, 6-10% chromium, 3-5% nickel, 1.5-2.5% titanium, 0.3-1.8% aluminum, 0.8-1.8% manganese, and the balance is iron; the content of carbon in the alloy powder is ≤0.1%, and the content of impurities in the copper alloy is ≤0.25%.

[0009] Compared with the prior art, the present invention can achieve the following technical effects: By coating the surface of the alloy saw blade substrate with a corrosion-resistant coating, a dense corrosion-resistant film is formed, which isolates water vapor erosion, thereby preventing oxidation and rust and improving service life.

[0010] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time. Detailed Implementation

[0011] The following will describe the implementation of the present invention in detail with reference to the embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0012] This invention discloses a manufacturing process for a corrosion-resistant coated alloy saw blade, comprising: Step a. Place the mixed alloy powder into the alloy saw blade mold and press it into shape. The forming pressure is 2000-3000 tons. Step b. Sinter the formed alloy saw blade at a high temperature, between 1350℃ and 1450℃; Step c. Remove the sintered alloy saw blade, perform surface grinding and edge grinding, clean and dry it, and then weld on the diamond cutting head; Step d. Sandblast the alloy saw blade with the welded diamond tip; Step e. Provide a corrosion-resistant coating, which comprises, by weight, 30-50 parts of fluorocarbon resin, 25-45 parts of epoxy resin, 12-23 parts of quartz powder, 8-14 parts of titanium dioxide, 2-9 parts of potassium nitrate, 5-7 parts of sodium fluorosilicate, and 8-15 parts of toluene. Step f. Filter the mixed and prepared corrosion-resistant coating through a 500-mesh filter, load it into a spray gun, and spray it onto the alloy saw blade obtained in step d. Step g. Place the coated alloy saw blade in an oven at 790-820℃ and keep it warm for 5-10 minutes to obtain the finished product.

[0013] In one embodiment of the present invention, the alloy powder is selected from 11-15% molybdenum, 3.1-4.7% tungsten, 6-10% chromium, 3-5% nickel, 1.5-2.5% titanium, 0.3-1.8% aluminum, 0.8-1.8% manganese, with the balance being iron; the carbon content in the alloy powder is ≤0.1%, and the impurity content in the copper alloy is ≤0.25%. It is used to prepare a high-strength, vibration-resistant alloy saw blade. The saw blade substrate is formed by pressing and sintering in a mold, then surface treatment is performed, the blade head is welded, and finally a corrosion-resistant coating is sprayed to form a corrosion-resistant layer on the surface of the saw blade, which isolates moisture and avoids corrosion and rust, thereby improving durability.

[0014] Preferably, in step e, the corrosion coating comprises, by weight, 40 parts fluorocarbon resin, 35 parts epoxy resin, 18 parts quartz powder, 11 parts titanium dioxide, 5 parts potassium nitrate, 6 parts sodium fluorosilicate, and 12 parts toluene. The fluorocarbon resin and epoxy resin serve as the main base materials, which are mixed with quartz powder, titanium dioxide, potassium nitrate, and sodium fluorosilicate. The mixture is then diluted with toluene to form a relatively viscous coating. This coating is sprayed onto the saw blade surface using a spray gun, forming a dense film that, after curing, effectively protects the saw blade from corrosion.

[0015] Specifically, the corrosion-resistant coating thickness is 140-360μm, the spray gun voltage is 70-100KV, and the powder output is 60-100%.

[0016] In summary, this invention forms a dense, corrosion-resistant film by coating the surface of the alloy saw blade substrate with a corrosion-resistant coating, which isolates it from moisture erosion, thereby preventing oxidation and rust and improving its service life.

[0017] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A manufacturing process for a corrosion-resistant coated alloy saw blade, characterized in that, include: Step a. Place the mixed alloy powder into the alloy saw blade mold and press it into shape. The forming pressure is 2000-3000 tons. Step b. The formed alloy saw blade is sintered at a high temperature of 1350℃-1450℃; Step c. Remove the sintered alloy saw blade, perform surface grinding and edge grinding, clean and dry it, and then weld on the diamond cutting head; Step d. After welding the diamond cutting head, the alloy saw blade is sandblasted. Step e. Provide a corrosion-resistant coating, wherein the corrosion-resistant coating comprises, by weight, 40 parts fluorocarbon resin, 35 parts epoxy resin, 18 parts quartz powder, 11 parts titanium dioxide, 5 parts potassium nitrate, 6 parts sodium fluorosilicate, and 12 parts toluene, wherein the fluorocarbon resin and epoxy resin are the main base materials, and are mixed with quartz powder, titanium dioxide, potassium nitrate, and sodium fluorosilicate, and then diluted with toluene solvent to finally form the coating. Step f. Filter the prepared corrosion-resistant coating through a 500-mesh filter, load it into a spray gun, and spray it onto the alloy saw blade obtained in step d; the corrosion-resistant coating thickness is 140-360μm, the spray gun voltage is 70-100KV, and the powder output is 60-100%. Step g. Place the coated alloy saw blade in an oven at 790-820℃ for 5-10 minutes and remove it to obtain the finished product.