CN113862660B - High-compression-resistance butt-welded elbow and processing technology thereof - Google Patents
High-compression-resistance butt-welded elbow and processing technology thereof Download PDFInfo
- Publication number
- CN113862660B CN113862660B CN202111060270.8A CN202111060270A CN113862660B CN 113862660 B CN113862660 B CN 113862660B CN 202111060270 A CN202111060270 A CN 202111060270A CN 113862660 B CN113862660 B CN 113862660B
- Authority
- CN
- China
- Prior art keywords
- metal powder
- elbow
- butt
- welded
- alloy layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 title abstract description 12
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 180
- 229910052751 metal Inorganic materials 0.000 claims abstract description 102
- 239000002184 metal Substances 0.000 claims abstract description 102
- 238000003466 welding Methods 0.000 claims abstract description 53
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 45
- 239000000956 alloy Substances 0.000 claims abstract description 45
- 238000004372 laser cladding Methods 0.000 claims abstract description 45
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 34
- 239000011701 zinc Substances 0.000 claims abstract description 34
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000010936 titanium Substances 0.000 claims abstract description 29
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 29
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 26
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 10
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 26
- 229910052738 indium Inorganic materials 0.000 claims description 25
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 238000005253 cladding Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 5
- 239000010935 stainless steel Substances 0.000 abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 12
- 238000002156 mixing Methods 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 239000007769 metal material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The invention discloses a high-pressure-resistance butt-welded elbow and a processing technology thereof, and particularly relates to the technical field of butt-welded elbows. The invention can effectively strengthen the compressive strength of the high-pressure-resistant butt-welded elbow and the stainless steel pipeline, and can ensure the safety and stability of the butt-welded elbow and the stainless steel pipeline under high-strength pressure vibration treatment; the titanium metal powder and the aluminum metal powder are mutually matched to form a titanium/aluminum composite layer, so that the compressive strength and stability of the welding seam can be effectively enhanced; the nano cerium oxide and copper metal powder are doped into the tin metal powder and the silver metal powder, so that the compression resistance and fatigue resistance of the welding seam can be effectively enhanced; the zinc metal powder can effectively carry out blending treatment on other raw materials of the laser cladding alloy layer, the boiling point of zinc is low, the vapor pressure is high, and a large amount of heat is taken away due to the fact that zinc is easy to volatilize in the welding process, meanwhile, the heat conductivity of zinc is high, and the heat of a welding seam is rapidly emitted.
Description
Technical Field
The invention relates to the technical field of butt welding elbows, in particular to a high-pressure-resistance butt welding elbow and a processing technology thereof.
Background
The butt welded elbow is formed by steel hot pressing or forging, and the connecting mode is to directly butt weld the elbow and the steel pipe. The butt welding elbow is divided into a long-radius butt welding elbow and a short-radius butt welding elbow according to the curvature radius of the butt welding elbow; according to the angle of the elbow, the elbow comprises a 45-degree butt welding elbow, a 90-degree butt welding elbow, a 180-degree butt welding elbow and other elbows with different angles; the butt welding elbow materials are as follows: carbon steel, alloy steel, stainless steel. The butt-welded elbow can be made of a stainless steel composite steel plate, and is a novel material pipe fitting formed by welding after being pressed and molded by different dies, and the butt-welded elbow not only has the corrosion resistance, the wear resistance and the diamagnetism of stainless steel, but also has the good weldability, the formability, the drawability and the heat conductivity of carbon steel; can be widely applied to severe environments with severe working conditions such as corrosion resistance, acid resistance, high strength and the like in petroleum, chemical industry and the like.
The existing welding position of the butt welding elbow has poor compression resistance and is easy to break or damage.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a high-pressure-resistant butt-welded elbow and a processing technology thereof.
The high pressure-resistant butt welding elbow comprises the following components in percentage by weight: 95.60-96.60% of the elbow body and the balance of the elbow body are laser cladding alloy layers which are uniformly distributed at the end welding positions of the elbow body.
Further, the laser cladding alloy layer comprises the following components in percentage by weight: 48.60-49.80% of tin metal powder, 4.40-5.40% of zinc metal powder, 1.20-1.80% of aluminum metal powder, 1.70-2.50% of copper metal powder, 0.80-1.40% of silver metal powder, 19.60-20.60% of indium metal powder, 9.40-10.40% of bismuth metal powder, 0.40-0.60% of nano cerium oxide and the balance of titanium metal powder.
Further, the method comprises the following steps in percentage by weight: 95.60% of elbow body and 4.40% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 48.60% of tin metal powder, 4.40% of zinc metal powder, 1.20% of aluminum metal powder, 1.70% of copper metal powder, 0.80% of silver metal powder, 19.60% of indium metal powder, 9.40% of bismuth metal powder, 0.40% of nano cerium oxide and 13.90% of titanium metal powder.
Further, the method comprises the following steps in percentage by weight: 96.60% of elbow body and 3.40% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 49.80% of tin metal powder, 5.40% of zinc metal powder, 1.80% of aluminum metal powder, 2.50% of copper metal powder, 1.40% of silver metal powder, 20.60% of indium metal powder, 10.40% of bismuth metal powder, 0.60% of nano cerium oxide and 7.50% of titanium metal powder.
Further, the method comprises the following steps in percentage by weight: 96.10% of elbow body and 3.90% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 49.20% of tin metal powder, 4.90% of zinc metal powder, 1.50% of aluminum metal powder, 2.10% of copper metal powder, 1.10% of silver metal powder, 20.10% of indium metal powder, 9.90% of bismuth metal powder, 0.50% of nano cerium oxide and 10.70% of titanium metal powder.
A processing technology of a high pressure-resistant butt-welded elbow comprises the following specific preparation steps:
step one: weighing tin metal powder, zinc metal powder, aluminum metal powder, copper metal powder, silver metal powder, indium metal powder, bismuth metal powder, nano cerium oxide and titanium metal powder in the elbow body and the raw materials of the laser cladding alloy layer according to the weight ratio;
step two: adding the tin metal powder, the zinc metal powder, the aluminum metal powder, the copper metal powder, the silver metal powder, the indium metal powder, the bismuth metal powder, the nano cerium oxide and the titanium metal powder in the first step into a planetary ball mill, and carrying out constant-temperature stirring treatment for 30-40 minutes at the temperature of 25-35 ℃ to obtain a blend;
step three: sieving the blend prepared in the second step with a 800-1000 mesh sieve under the action of ultrasonic waves to obtain a cladding base material;
step four: carrying out vacuum spraying on the cladding base material prepared in the third step to the end welding part of the elbow body in the first step, and drying to obtain a semi-finished high-pressure-resistance butt-welded elbow;
step five: and (3) carrying out laser scanning treatment on the cladding base material on the semi-finished product high-compression butt welding elbow prepared in the step (IV), and converting the cladding base material into a laser cladding alloy layer to obtain the high-compression butt welding elbow.
Further, in step two, the planetary ball mill: revolution rotation speed: 280-360 r/min, 560-720 r/min of rotation speed and 27-31 KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3-1.5 MHz, and the ultrasonic power is 400-600W; in the fourth step, air-cooling drying treatment is carried out at 15-25 ℃; in the fifth step, the laser power is 3000-3800W, and the scanning speed is 240-320 mm/min.
Further, in step two, the planetary ball mill: revolution rotation speed: 280r/min, 560r/min of rotation speed and 27KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3MHz, and the ultrasonic power is 400W; in the fourth step, air-cooling and drying treatment is carried out at 15 ℃; in step five, the laser power was 3000W and the scanning speed was 240mm/min.
Further, in step two, the planetary ball mill: revolution rotation speed: 360r/min, 720r/min of rotation speed and 31KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.5MHz, and the ultrasonic power is 600W; in the fourth step, air cooling and drying are carried out at 25 ℃; in step five, the laser power was 3800W and the scanning speed was 320mm/min.
Further, in step two, the planetary ball mill: revolution rotation speed: 320r/min, rotational speed 640r/min and power 29KW; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.4MHz, and the ultrasonic power is 500W; in the fourth step, air-cooling and drying treatment is carried out at 20 ℃; in step five, the laser power was 3400W and the scan speed was 280mm/min.
The invention has the technical effects and advantages that:
1. the high-pressure-resistant butt-welded elbow prepared by adopting the raw material formula can effectively strengthen the compressive strength of the high-pressure-resistant butt-welded elbow and the stainless steel pipeline, and can ensure the safety and stability of the butt-welded elbow and the stainless steel pipeline under high-strength pressure vibration treatment; the titanium metal powder and the aluminum metal powder are mutually matched to form a titanium/aluminum composite layer, so that the compressive strength and stability of the welding seam can be effectively enhanced; the nano cerium oxide and copper metal powder are doped into the tin metal powder and the silver metal powder, so that the compression resistance and fatigue resistance of the welding seam can be effectively enhanced; the zinc metal powder can effectively carry out blending treatment on other raw materials of the laser cladding alloy layer, the boiling point of zinc is low, the vapor pressure is high, the zinc is easy to volatilize in the welding process to take away a large amount of heat, meanwhile, the heat conductivity of the zinc is also higher, and the heat at a welding spot is easy to lose in the welding process, so that the heat of a welding seam is rapidly emitted;
2. in the process of preparing the high-pressure-resistance butt-welded elbow, in the second step, planetary ball milling treatment is carried out on the raw materials of the laser cladding alloy layer at the constant temperature of 30 ℃, so that the blending and crushing treatment effect can be effectively enhanced, and meanwhile, the heat generated by the metal material in the blending process can be effectively reduced at the constant temperature of 30 ℃, and the mixing uniformity degree of the metal material is ensured; in the third step, the ultrasonic sieving treatment can effectively ensure the homogenization of the whole grain diameter of the cladding base material, and is convenient for the vacuum spraying treatment effect of the next step; in the fourth step, the cladding base material is sprayed onto the elbow body in vacuum; in the fifth step, the cladding base material is subjected to laser scanning treatment, and is converted into a laser cladding alloy layer, so that the contact and combination effect of the laser cladding alloy layer and the elbow body can be effectively enhanced, and the high-pressure-resistance butt-welded elbow is obtained.
Detailed Description
The following description will clearly and fully describe the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the invention provides a high pressure-resistant butt welding elbow, which comprises: 956.0g of elbow body and 44.0g of laser cladding alloy layer; the laser cladding alloy layer comprises: 21.384g of tin metal powder, 1.936g of zinc metal powder, 0.528g of aluminum metal powder, 0.748g of copper metal powder, 0.352g of silver metal powder, 8.624g of indium metal powder, 4.136g of bismuth metal powder, 0.176g of nano cerium oxide and 6.116g of titanium metal powder;
a processing technology of a high pressure-resistant butt-welded elbow comprises the following specific preparation steps:
step one: weighing tin metal powder, zinc metal powder, aluminum metal powder, copper metal powder, silver metal powder, indium metal powder, bismuth metal powder, nano cerium oxide and titanium metal powder in the elbow body and the raw materials of the laser cladding alloy layer according to the weight ratio;
step two: adding the tin metal powder, the zinc metal powder, the aluminum metal powder, the copper metal powder, the silver metal powder, the indium metal powder, the bismuth metal powder, the nano cerium oxide and the titanium metal powder in the first step into a planetary ball mill, and carrying out constant-temperature stirring treatment for 30 minutes at the temperature of 25 ℃ to obtain a blend;
step three: sieving the blend prepared in the second step with a 800-mesh sieve under the action of ultrasonic waves to obtain a cladding base material;
step four: carrying out vacuum spraying on the cladding base material prepared in the third step to the end welding part of the elbow body in the first step, and drying to obtain a semi-finished high-pressure-resistance butt-welded elbow;
step five: and (3) carrying out laser scanning treatment on the cladding base material on the semi-finished product high-compression butt welding elbow prepared in the step (IV), and converting the cladding base material into a laser cladding alloy layer to obtain the high-compression butt welding elbow.
In step two, planetary ball mill: revolution rotation speed: 280r/min, 560r/min of rotation speed and 27KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3MHz, and the ultrasonic power is 400W; in the fourth step, air-cooling and drying treatment is carried out at 15 ℃; in step five, the laser power was 3000W and the scanning speed was 240mm/min.
Example 2:
unlike embodiment 1, it includes: 966.0g of elbow body and 34.0g of laser cladding alloy layer; the laser cladding alloy layer comprises: 16.932g of tin metal powder, 1.836g of zinc metal powder, 0.612g of aluminum metal powder, 0.85g of copper metal powder, 0.476g of silver metal powder, 7.004g of indium metal powder, 3.536g of bismuth metal powder, 0.204g of nano cerium oxide and 2.55g of titanium metal powder.
Example 3:
unlike in each of examples 1 to 2, it includes: 961.0g of elbow body and 39.0g of laser cladding alloy layer; the laser cladding alloy layer comprises: 19.188g of tin metal powder, 1.911g of zinc metal powder, 0.585g of aluminum metal powder, 0.819g of copper metal powder, 0.429g of silver metal powder, 7.839g of indium metal powder, 3.861g of bismuth metal powder, 0.195g of nano cerium oxide and 4.173g of titanium metal powder.
Taking the high pressure butt-welded elbow prepared in the embodiment 1-3, the high pressure butt-welded elbow of the comparison group I, the high pressure butt-welded elbow of the comparison group II, the high pressure butt-welded elbow of the comparison group III, the high pressure butt-welded elbow of the comparison group IV and the high pressure butt-welded elbow of the comparison group V respectively, wherein the high pressure butt-welded elbow of the comparison group I is free of titanium metal powder compared with the embodiment, the high pressure butt-welded elbow of the comparison group II is free of indium metal powder compared with the embodiment, the high pressure butt-welded elbow of the comparison group III is free of bismuth metal powder compared with the embodiment, the high pressure butt-welded elbow of the comparison group IV is free of nano cerium oxide compared with the embodiment, the high pressure butt-welded elbow of the comparison group V is free of aluminum metal powder compared with the embodiment, and the high pressure butt-welded elbow of the three embodiments and the five comparison groups are respectively butt-welded with stainless steel pipes, and the welded stainless steel pipes and the high pressure butt-welded pipe are tested; the test results are shown in Table one:
table one:
as can be seen from the table one, when the high compression-resistant butt-welded elbow comprises the following raw materials: 961.0g of elbow body and 39.0g of laser cladding alloy layer; the laser cladding alloy layer comprises: 19.188g of tin metal powder, 1.911g of zinc metal powder, 0.585g of aluminum metal powder, 0.819g of copper metal powder, 0.429g of silver metal powder, 7.839g of indium metal powder, 3.861g of bismuth metal powder, 0.195g of nano cerium oxide and 4.173g of titanium metal powder, the compressive strength of the high-pressure butt-welding elbow and the stainless steel pipeline can be effectively enhanced, and the safety and stability of the butt-welding elbow and the stainless steel pipeline under high-strength pressure vibration treatment can be ensured; therefore, example 3 is a preferred embodiment of the present invention, and the laser cladding alloy layer is applied to the welding position of the butt-welded elbow, so that the connection safety, high compressive strength and stability of the butt-welded elbow and the stainless steel pipeline can be effectively enhanced; tin metal powder, silver metal powder and bismuth metal powder are matched with each other, so that the butt welding processing temperature can be effectively reduced, and energy sources can be effectively saved; the bismuth metal powder and the indium metal powder are matched with each other, so that the butt welding processing temperature can be further reduced, and the normal low-temperature welding processing is ensured; the titanium metal powder and the aluminum metal powder are mutually matched to form a titanium/aluminum composite layer, so that the compressive strength and stability of the welding seam can be effectively enhanced; the nano cerium oxide and copper metal powder are doped into the tin metal powder and the silver metal powder, so that the microstructure of the laser cladding alloy layer is optimized, intermetallic compound grains are refined, and the compression resistance and fatigue resistance of the welding seam can be effectively enhanced; the zinc metal powder can effectively carry out blending treatment on other raw materials of the laser cladding alloy layer, the boiling point of zinc is low, the vapor pressure is high, the zinc volatilizes easily in the welding process to take away a large amount of heat, meanwhile, the heat conductivity of the zinc is also high, and the heat at the welding spot is also easy to lose in the welding process, so that the heat of a welding seam is rapidly emitted.
Example 4
In the above preferred technical solution, the present invention provides a high compression-resistant butt-welded elbow, including: 961.0g of elbow body and 39.0g of laser cladding alloy layer; the laser cladding alloy layer comprises: 19.188g of tin metal powder, 1.911g of zinc metal powder, 0.585g of aluminum metal powder, 0.819g of copper metal powder, 0.429g of silver metal powder, 7.839g of indium metal powder, 3.861g of bismuth metal powder, 0.195g of nano cerium oxide and 4.173g of titanium metal powder.
A processing technology of a high pressure-resistant butt-welded elbow comprises the following specific preparation steps:
step one: weighing tin metal powder, zinc metal powder, aluminum metal powder, copper metal powder, silver metal powder, indium metal powder, bismuth metal powder, nano cerium oxide and titanium metal powder in the elbow body and the raw materials of the laser cladding alloy layer according to the weight ratio;
step two: adding the tin metal powder, the zinc metal powder, the aluminum metal powder, the copper metal powder, the silver metal powder, the indium metal powder, the bismuth metal powder, the nano cerium oxide and the titanium metal powder in the first step into a planetary ball mill, and carrying out constant-temperature stirring treatment for 35 minutes at the temperature of 30 ℃ to obtain a blend;
step three: the blend prepared in the second step is screened by a 9000 mesh sieve under the action of ultrasonic waves to obtain a cladding base material;
step four: carrying out vacuum spraying on the cladding base material prepared in the third step to the end welding part of the elbow body in the first step, and drying to obtain a semi-finished high-pressure-resistance butt-welded elbow;
step five: and (3) carrying out laser scanning treatment on the cladding base material on the semi-finished product high-compression butt welding elbow prepared in the step (IV), and converting the cladding base material into a laser cladding alloy layer to obtain the high-compression butt welding elbow.
In step two, planetary ball mill: revolution rotation speed: 280r/min, 560r/min of rotation speed and 27KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3MHz, and the ultrasonic power is 400W; in the fourth step, air-cooling and drying treatment is carried out at 15 ℃; in step five, the laser power was 3000W and the scanning speed was 240mm/min.
Example 5
Unlike example 4, in step two, a planetary ball mill: revolution rotation speed: 360r/min, 720r/min of rotation speed and 31KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.5MHz, and the ultrasonic power is 600W; in the fourth step, air cooling and drying are carried out at 25 ℃; in step five, the laser power was 3800W and the scanning speed was 320mm/min.
Example 6
Unlike in examples 4-5, in step two, the planetary ball mill: revolution rotation speed: 320r/min, rotational speed 640r/min and power 29KW; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.4MHz, and the ultrasonic power is 500W; in the fourth step, air-cooling and drying treatment is carried out at 20 ℃; in step five, the laser power was 3400W and the scan speed was 280mm/min.
Taking the high compression butt-welded elbow prepared in the above embodiments 4-6 and the high compression butt-welded elbow of the control group six, the high compression butt-welded elbow of the control group seven, the high compression butt-welded elbow of the control group eight and the high compression butt-welded elbow of the control group nine respectively, wherein the high compression butt-welded elbow of the control group six has no operation in the step two compared with the embodiment, the high compression butt-welded elbow of the control group seven has no operation in the step three compared with the embodiment, the high compression butt-welded elbow of the control group eight has no operation in the step four compared with the embodiment, the high compression butt-welded elbow of the control group nine has no operation in the step five compared with the embodiment, the butt-welded pipe and the high compression butt-welded elbow of the control group nine are respectively subjected to butt welding processing, and the welded pipe and the high compression butt-welded elbow are tested, and the test results are shown in the table two:
and (II) table:
in the second step, the tin metal powder, the zinc metal powder, the aluminum metal powder, the copper metal powder, the silver metal powder, the indium metal powder, the bismuth metal powder, the nano cerium oxide and the titanium metal powder are subjected to planetary ball milling under the constant temperature of 30 ℃, so that the blending and crushing treatment effect of the metal materials can be effectively enhanced, and meanwhile, the heat generated in the blending process of the metal materials can be effectively reduced under the constant temperature of 30 ℃, the indium metal powder and the bismuth metal powder are prevented from being converted into a molten state under the heat state, and the mixing uniformity degree of the metal materials is ensured; in the third step, the blend is screened under 1.4MHz ultrasonic oscillation treatment, so that the overall particle size of the cladding base material can be effectively ensured to be uniform, and the vacuum spraying treatment effect of the next step is facilitated; in the fourth step, the cladding base material is sprayed onto the elbow body in vacuum; in the fifth step, the cladding base material is subjected to laser scanning treatment, and is converted into a laser cladding alloy layer, so that the contact and combination effect of the laser cladding alloy layer and the elbow body can be effectively enhanced, and the high-pressure-resistance butt-welded elbow is obtained.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a high resistance to compression butt welding elbow which characterized in that: the weight percentage is as follows: 95.60-96.60% of the elbow body and the balance of the elbow body are laser cladding alloy layers, wherein the laser cladding alloy layers are uniformly distributed at the end welding part of the elbow body; the laser cladding alloy layer comprises the following components in percentage by weight: 48.60-49.80% of tin metal powder, 4.40-5.40% of zinc metal powder, 1.20-1.80% of aluminum metal powder, 1.70-2.50% of copper metal powder, 0.80-1.40% of silver metal powder, 19.60-20.60% of indium metal powder, 9.40-10.40% of bismuth metal powder, 0.40-0.60% of nano cerium oxide and the balance of titanium metal powder.
2. A high pressure butt-welded elbow according to claim 1, wherein: the weight percentage is as follows: 95.60% of elbow body and 4.40% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 48.60% of tin metal powder, 4.40% of zinc metal powder, 1.20% of aluminum metal powder, 1.70% of copper metal powder, 0.80% of silver metal powder, 19.60% of indium metal powder, 9.40% of bismuth metal powder, 0.40% of nano cerium oxide and 13.90% of titanium metal powder.
3. A high pressure butt-welded elbow according to claim 1, wherein: the weight percentage is as follows: 96.60% of elbow body and 3.40% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 49.80% of tin metal powder, 5.40% of zinc metal powder, 1.80% of aluminum metal powder, 2.50% of copper metal powder, 1.40% of silver metal powder, 20.60% of indium metal powder, 10.40% of bismuth metal powder, 0.60% of nano cerium oxide and 7.50% of titanium metal powder.
4. A high pressure butt-welded elbow according to claim 1, wherein: the weight percentage is as follows: 96.10% of elbow body and 3.90% of laser cladding alloy layer; the laser cladding alloy layer comprises the following components in percentage by weight: 49.20% of tin metal powder, 4.90% of zinc metal powder, 1.50% of aluminum metal powder, 2.10% of copper metal powder, 1.10% of silver metal powder, 20.10% of indium metal powder, 9.90% of bismuth metal powder, 0.50% of nano cerium oxide and 10.70% of titanium metal powder.
5. The process for manufacturing a high pressure butt-welded elbow according to any one of claims 1 to 4, wherein: the preparation method comprises the following specific steps:
step one: weighing tin metal powder, zinc metal powder, aluminum metal powder, copper metal powder, silver metal powder, indium metal powder, bismuth metal powder, nano cerium oxide and titanium metal powder in the elbow body and the raw materials of the laser cladding alloy layer according to the weight percentage;
step two: adding the tin metal powder, the zinc metal powder, the aluminum metal powder, the copper metal powder, the silver metal powder, the indium metal powder, the bismuth metal powder, the nano cerium oxide and the titanium metal powder in the first step into a planetary ball mill, and carrying out constant-temperature stirring treatment for 30-40 minutes at the temperature of 25-35 ℃ to obtain a blend;
step three: sieving the blend prepared in the second step with a 800-1000 mesh sieve under the action of ultrasonic waves to obtain a cladding base material;
step four: carrying out vacuum spraying on the cladding base material prepared in the third step to the end welding part of the elbow body in the first step, and drying to obtain a semi-finished high-pressure-resistance butt-welded elbow;
step five: and (3) carrying out laser scanning treatment on the cladding base material on the semi-finished product high-compression butt welding elbow prepared in the step (IV), and converting the cladding base material into a laser cladding alloy layer to obtain the high-compression butt welding elbow.
6. The process for manufacturing the high-pressure-resistant butt-welded elbow according to claim 5, wherein the process comprises the following steps of: in step two, planetary ball mill: revolution rotation speed: 280-360 r/min, 560-720 r/min of rotation speed and 27-31 KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3-1.5 MHz, and the ultrasonic power is 400-600W; in the fourth step, air-cooling drying treatment is carried out at 15-25 ℃; in the fifth step, the laser power is 3000-3800W, and the scanning speed is 240-320 mm/min.
7. The process for manufacturing the high-pressure-resistant butt-welded elbow according to claim 6, wherein the process comprises the following steps of: in step two, planetary ball mill: revolution rotation speed: 280r/min, 560r/min of rotation speed and 27KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.3MHz, and the ultrasonic power is 400W; in the fourth step, air-cooling and drying treatment is carried out at 15 ℃; in step five, the laser power was 3000W and the scanning speed was 240mm/min.
8. The process for manufacturing the high-pressure-resistant butt-welded elbow according to claim 6, wherein the process comprises the following steps of: in step two, planetary ball mill: revolution rotation speed: 360r/min, 720r/min of rotation speed and 31KW of power; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.5MHz, and the ultrasonic power is 600W; in the fourth step, air cooling and drying are carried out at 25 ℃; in step five, the laser power was 3800W and the scanning speed was 320mm/min.
9. The process for manufacturing the high-pressure-resistant butt-welded elbow according to claim 6, wherein the process comprises the following steps of: in step two, planetary ball mill: revolution rotation speed: 320r/min, rotational speed 640r/min and power 29KW; in the third step, the blend which is not subjected to screening treatment is subjected to the operation in the second step again, the ultrasonic frequency is 1.4MHz, and the ultrasonic power is 500W; in the fourth step, air-cooling and drying treatment is carried out at 20 ℃; in step five, the laser power was 3400W and the scan speed was 280mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060270.8A CN113862660B (en) | 2021-09-10 | 2021-09-10 | High-compression-resistance butt-welded elbow and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060270.8A CN113862660B (en) | 2021-09-10 | 2021-09-10 | High-compression-resistance butt-welded elbow and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113862660A CN113862660A (en) | 2021-12-31 |
| CN113862660B true CN113862660B (en) | 2023-11-14 |
Family
ID=78995159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111060270.8A Active CN113862660B (en) | 2021-09-10 | 2021-09-10 | High-compression-resistance butt-welded elbow and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113862660B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422517A (en) * | 1990-05-17 | 1992-01-27 | Kubota Corp | Method for bending thick wall pipe |
| JP2003342638A (en) * | 2002-05-20 | 2003-12-03 | Nippon Steel Corp | Process for manufacturing high-strength bent tube |
| CN103014475A (en) * | 2012-12-18 | 2013-04-03 | 江苏新亚特钢锻造有限公司 | Oxide particle reinforced laser cladding high-wear resistance nickel-base alloy powder and preparation method thereof |
| CN103042071A (en) * | 2013-01-07 | 2013-04-17 | 北京东鑫顺通耐磨技术有限公司 | Bimetallic compound elbow and production method thereof |
| CN202992496U (en) * | 2013-01-07 | 2013-06-12 | 北京东鑫顺通耐磨技术有限公司 | Duplex metal composite elbow |
| CN103805813A (en) * | 2013-12-05 | 2014-05-21 | 鞍山煜宸科技有限公司 | Gradient alloy material and method for laser strengthening of copper plate of crystallizer of continuous casting machine |
| CN108526747A (en) * | 2018-03-16 | 2018-09-14 | 华南理工大学 | A kind of cerium oxide nanoparticles enhancement type tin silver-bearing copper composite solder paste and preparation method thereof |
| CN108856721A (en) * | 2018-07-18 | 2018-11-23 | 申科滑动轴承股份有限公司 | A kind of preparation process of the 3 D-printing composite material based on micron order tin-base babbit powder |
| CN108866542A (en) * | 2018-07-18 | 2018-11-23 | 申科滑动轴承股份有限公司 | A kind of preparation process of the tin-base babbit coating material based on 3D printing technique |
| CN110373670A (en) * | 2019-09-04 | 2019-10-25 | 河南艾通科技股份有限公司 | A kind of laser melting coating welding method for jack production |
| CN110783445A (en) * | 2019-10-17 | 2020-02-11 | 中国科学院上海硅酸盐研究所 | Soldering lug for connecting segmented thermoelectric device and preparation method thereof |
| CN212319121U (en) * | 2020-03-23 | 2021-01-08 | 上海天阳钢管有限公司 | Bimetal metallurgy composite elbow |
| CN112974813A (en) * | 2021-02-05 | 2021-06-18 | 中国人民解放军陆军装甲兵学院 | Titanium-based composite powder and preparation method thereof, in-situ reinforced titanium-based composite coating and preparation method thereof |
-
2021
- 2021-09-10 CN CN202111060270.8A patent/CN113862660B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422517A (en) * | 1990-05-17 | 1992-01-27 | Kubota Corp | Method for bending thick wall pipe |
| JP2003342638A (en) * | 2002-05-20 | 2003-12-03 | Nippon Steel Corp | Process for manufacturing high-strength bent tube |
| CN103014475A (en) * | 2012-12-18 | 2013-04-03 | 江苏新亚特钢锻造有限公司 | Oxide particle reinforced laser cladding high-wear resistance nickel-base alloy powder and preparation method thereof |
| CN103042071A (en) * | 2013-01-07 | 2013-04-17 | 北京东鑫顺通耐磨技术有限公司 | Bimetallic compound elbow and production method thereof |
| CN202992496U (en) * | 2013-01-07 | 2013-06-12 | 北京东鑫顺通耐磨技术有限公司 | Duplex metal composite elbow |
| CN103805813A (en) * | 2013-12-05 | 2014-05-21 | 鞍山煜宸科技有限公司 | Gradient alloy material and method for laser strengthening of copper plate of crystallizer of continuous casting machine |
| CN108526747A (en) * | 2018-03-16 | 2018-09-14 | 华南理工大学 | A kind of cerium oxide nanoparticles enhancement type tin silver-bearing copper composite solder paste and preparation method thereof |
| CN108856721A (en) * | 2018-07-18 | 2018-11-23 | 申科滑动轴承股份有限公司 | A kind of preparation process of the 3 D-printing composite material based on micron order tin-base babbit powder |
| CN108866542A (en) * | 2018-07-18 | 2018-11-23 | 申科滑动轴承股份有限公司 | A kind of preparation process of the tin-base babbit coating material based on 3D printing technique |
| CN110373670A (en) * | 2019-09-04 | 2019-10-25 | 河南艾通科技股份有限公司 | A kind of laser melting coating welding method for jack production |
| CN110783445A (en) * | 2019-10-17 | 2020-02-11 | 中国科学院上海硅酸盐研究所 | Soldering lug for connecting segmented thermoelectric device and preparation method thereof |
| CN212319121U (en) * | 2020-03-23 | 2021-01-08 | 上海天阳钢管有限公司 | Bimetal metallurgy composite elbow |
| CN112974813A (en) * | 2021-02-05 | 2021-06-18 | 中国人民解放军陆军装甲兵学院 | Titanium-based composite powder and preparation method thereof, in-situ reinforced titanium-based composite coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113862660A (en) | 2021-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114147215B (en) | Tungsten carbide reinforced high-entropy alloy composite powder for ultra-high-speed laser cladding, coating thereof, preparation method and application | |
| CN111349810B (en) | Graphene/copper composite wire and preparation method thereof | |
| CN108161278A (en) | High entropy flux-cored wire for aluminium-steel MIG welding and preparation method thereof | |
| CN1854317A (en) | Powdery alloy processing material in site by movable laser smelt-coating process | |
| CN109955003A (en) | High-strength, anti-corrosion Al-Mg-Zr aluminium alloy welding wire and preparation method thereof | |
| Zhao et al. | Influence of annealing on the microstructure and mechanical properties of Ti/steel clad plates fabricated via cold spray additive manufacturing and hot-rolling | |
| CN113862660B (en) | High-compression-resistance butt-welded elbow and processing technology thereof | |
| CN111136404A (en) | Low-nickel nitrogen-containing austenitic stainless steel welding rod and preparation method thereof | |
| Mahendran et al. | Developing diffusion bonding windows for joining AZ31B magnesium and copper alloys | |
| CN105728492A (en) | Clad steel plate with yield strength larger than 700 MPa and manufacturing method of clad steel plate | |
| Li et al. | Enhancing the properties of the SAC305-soldered joint: heat treatment of the nickel-plated copper substrate before reflow soldering | |
| CN107779650B (en) | A kind of nickel aluminum bronze material and preparation method thereof | |
| CN105771799A (en) | Composite enameled plate for high-pressure reaction kettle and production method of composite enameled plate | |
| CN101028675A (en) | Stainless-steel and steel composite brazing alloy and its usage | |
| CN114182124B (en) | High-dispersibility silver tungsten carbide electrical contact material and preparation method thereof | |
| CN112111666A (en) | Aluminum-based composite material and impeller made of same | |
| CN115008065B (en) | Flux-cored wire for high entropy of titanium-steel weld joint and preparation method thereof | |
| CN103949743B (en) | A kind of welding method of ferrous metal | |
| CN114149723B (en) | Corrosion-resistant coating for steel pipe and preparation method and application thereof | |
| CN113774374A (en) | Steel-based titanium coating and preparation method and application thereof | |
| CN109848643A (en) | A method of improving 7075 Aluminum Alloy Friction Stir Welding head corrosion resistances | |
| CN114192774A (en) | Silver-tungsten electrical contact material with high dispersion degree and high compactness and preparation method thereof | |
| CN116288123A (en) | ODS steel with aluminum alloying coating and preparation method thereof | |
| CN114182122B (en) | High-dispersity silver-molybdenum electrical contact material and preparation method thereof | |
| CN112170487B (en) | Preparation method of multilayer metal plate for bearing bush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |