CN113976893A - Preparation method for strengthening and prolonging service life of flame cleaning burner - Google Patents
Preparation method for strengthening and prolonging service life of flame cleaning burner Download PDFInfo
- Publication number
- CN113976893A CN113976893A CN202111345641.7A CN202111345641A CN113976893A CN 113976893 A CN113976893 A CN 113976893A CN 202111345641 A CN202111345641 A CN 202111345641A CN 113976893 A CN113976893 A CN 113976893A
- Authority
- CN
- China
- Prior art keywords
- burner
- temperature
- sintering
- bonding material
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005728 strengthening Methods 0.000 title claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 35
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 31
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000007600 charging Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910000684 Cobalt-chrome Inorganic materials 0.000 claims description 3
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010952 cobalt-chrome Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 229910000753 refractory alloy Inorganic materials 0.000 claims 2
- 238000009749 continuous casting Methods 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a preparation method for strengthening and prolonging the service life of a flame cleaning burner, which comprises the steps of coating a bonding material, charging, sintering and processing, wherein a layer of bonding material is coated on the damaged surface of a copper alloy burner, then a prepared high-temperature-resistant alloy layer is placed on the bonding material, and is charged into a sintering furnace to finish charging. The bonding material is compacted through sintering, metallurgical bonding is formed between the burner body copper alloy and the high-temperature-resistant alloy layer, products discharged from the furnace are machined to the final required size, the strengthened repair of the damaged old burner is completed, and the recycling of the cleaned burner is realized. The method of the invention bonds the burner body copper alloy and the high-temperature resistant alloy layer firmly, has the advantages of high temperature resistance, good oxidation resistance and long service life, and can meet the application requirements of high temperature, high dust and high water vapor in the continuous casting billet flame cleaning process. The burner with the strengthened service life is prolonged by 3 times, the use cost is greatly reduced, the surface defect cleaning quality is ensured, and the burner has important application value.
Description
Technical Field
The invention relates to a preparation method for strengthening and prolonging the service life of a flame cleaning burner, which belongs to the technical field of special equipment in the steel industry and is used for prolonging the service life of key parts of the equipment.
Background
With the development of the steel industry in China, particularly the increasing demand on high-end steel products, a continuous casting billet flame cleaning machine is widely applied to cleaning of a surface defect layer of a continuous casting billet, one of key components used in the continuous casting billet flame cleaning machine is a flame cleaning burner which is made of copper alloy and used in high-temperature, high-dust and high-humidity environments for a long time, the operating environment is harsh, corrosion loss is caused, the service life of the burner is short, the cleaning quality is gradually reduced along with the damage of the burner, the part is an inlet part, the use cost is high, and a preparation process method for improving the service life of the burner and reducing the use cost needs to be developed.
Disclosure of Invention
The invention aims to provide a preparation method for strengthening and prolonging the service life of a flame cleaning burner.
The invention provides a preparation method for strengthening and prolonging the service life of a flame cleaning burner, which comprises the following steps of coating a bonding material, charging, sintering and processing:
coating a layer of transition bonding material on one side of the damaged surface of the flame cleaning burner body, then placing a prepared high-temperature-resistant alloy layer on the transition bonding material, and loading the high-temperature-resistant alloy layer into a sintering furnace to finish furnace loading; the transition bonding material is compacted through sintering, metallurgical bonding is formed between the copper alloy and the high-temperature-resistant alloy layer of the flame cleaning burner body, and a product discharged from the burner is machined to a final required size; wherein: the sintering pressure is 0.5-1.0 MPa, the sintering temperature is 800-900 ℃, and the sintering time is 1-2 hours.
In the invention, the transitional bonding material consists of tin and copper, wherein:
the weight percentage of the components
6.0 to 10.0wt% of tin (Sn)
The balance of copper, the total weight of which meets 100 percent;
wherein: the tin and copper have a particle size of <75 μm and a purity of > 99%.
In the invention, the main component of the high-temperature resistant alloy layer is cobalt chromium, and the thickness of the high-temperature resistant alloy layer is 1-5 mm.
According to the invention, the copper alloy and the high-temperature-resistant alloy layer of the flame cleaning burner body are firmly bonded, and the flame cleaning burner has the characteristics of high temperature resistance, good oxidation resistance and long service life.
The design idea and principle of the invention are as follows:
the flame cleaning burner body is made of copper alloy, is used in a high-temperature, high-dust and high-humidity environment for a long time, is harsh in operation environment, causes corrosion loss, gradually reduces the use effect, and needs to be replaced when the corrosion loss is serious. The high-temperature resistant alloy has the advantages of high temperature resistance and good oxidation resistance, and can be used for a long time under harsh environment conditions, but the two different types of materials have larger performance difference and are difficult to form compact combination, in order to solve the problem of compact combination of the two materials, a medium-temperature-micro-pressure sintering preparation method is developed, through experiments, the optimal temperature-pressure-time matching process parameters are obtained, and the bonding material generates liquid phase reaction under the proper temperature condition during sintering, so that the compactness is increased, metallurgical combination is formed between the burner body copper alloy and the high-temperature resistant alloy layer, the bonding strength and the use performance of the sintered copper alloy and the high-temperature resistant alloy layer are ensured, and the combination problem of the two different types of materials is solved.
The invention has the beneficial effects that:
the preparation process method of the invention pastes a high-temperature resistant alloy layer (the main component is cobalt chromium) with high strength, high temperature resistance and good oxidation resistance on the easy-to-corrode surface of the part, and the thickness of the alloy layer is 1mm-5mm, thereby achieving the purpose of strengthening and prolonging the service life. The strengthened service life-increasing burner manufactured by the invention is a novel innovative product, the copper alloy and the high-temperature-resistant alloy layer of the burner body are firmly bonded, and the burner has the advantages of high temperature resistance, good oxidation resistance and long service life, and can meet the application requirements of high temperature, high dust and high water vapor in the continuous casting billet flame cleaning process. The device has been successfully tried on a continuous casting billet scarfing machine, the service life is prolonged by 3 times, the use and maintenance cost is greatly reduced, the quality of the device for cleaning the surface defect layer of the continuous casting billet is improved, and the device has important application value.
Drawings
FIG. 1 is a schematic front and back view of a scarfing nozzle prepared according to the present invention.
Reference numbers in the figures: 1 is a flame cleaning burner body, 2 is a high-temperature resistant alloy layer, and 3 is a transition bonding material.
Detailed Description
The invention is further illustrated by the following examples.
Example 1:
the implementation process comprises the following steps: coating a layer of bonding material on the damaged surface of the copper alloy burner, then placing a prepared high-temperature-resistant alloy layer on the bonding material, and loading into a sintering furnace to finish furnace loading. The bonding material is compacted through sintering, metallurgical bonding is formed between the burner body copper alloy and the high-temperature-resistant alloy layer, and a product discharged from the furnace is machined to the final required size.
The temperature-pressure-time matched process parameters of the sintering process are as follows: the sintering pressure is controlled to be 0.7MPa, the sintering temperature is controlled to be 860 ℃, and the sintering time is controlled to be 1.2 hours.
Wherein: the transition bonding material adopts 7 percent of Sn and the balance of Cu, the granularity of both the Sn and the Cu is less than 75 mu m, the purity of both the Sn and the Cu is more than 99 percent, and the thickness of the high-temperature resistant alloy layer is 3 mm.
The prepared strengthened life-prolonging burner body copper alloy and the high-temperature-resistant alloy layer are firmly bonded, the bonding strength meets the use requirement, and the service life is prolonged by 3 times.
Example 2:
the implementation process comprises the following steps: coating a layer of bonding material on the damaged surface of the copper alloy burner, then placing a prepared high-temperature-resistant alloy layer on the bonding material, and loading into a sintering furnace to finish furnace loading. The bonding material is compacted through sintering, metallurgical bonding is formed between the burner body copper alloy and the high-temperature-resistant alloy layer, and a product discharged from the furnace is machined to the final required size.
The temperature-pressure-time matched process parameters of the sintering process are as follows: the sintering pressure is controlled to be 0.5MPa, the sintering temperature is controlled to be 800 ℃, and the sintering time is controlled to be 2 hours.
Wherein: the transition bonding material adopts 10 percent of Sn and the balance of Cu, the granularity of both the Sn and the Cu is less than 75 mu m, the purity of both the Sn and the Cu is more than 99 percent, and the thickness of the high-temperature resistant alloy layer is 5 mm.
The prepared strengthened life-prolonging burner body copper alloy and the high-temperature-resistant alloy layer are firmly bonded, the bonding strength meets the use requirement, and the service life is prolonged by 3 times.
Example 3:
the implementation process comprises the following steps: coating a layer of bonding material on the damaged surface of the copper alloy burner, then placing a prepared high-temperature-resistant alloy layer on the bonding material, and loading into a sintering furnace to finish furnace loading. The bonding material is compacted through sintering, metallurgical bonding is formed between the burner body copper alloy and the high-temperature-resistant alloy layer, and a product discharged from the furnace is machined to the final required size.
The temperature-pressure-time matched process parameters of the sintering process are as follows: the sintering pressure is controlled to be 1.0MPa, the sintering temperature is 900 ℃, and the sintering time is 1 hour.
Wherein: the transition bonding material adopts Sn 6 percent and Cu as the rest, the granularity of both tin and copper is less than 75 mu m, the purity of both tin and copper is more than 99 percent, and the thickness of the high-temperature-resistant alloy layer is 1 mm.
The prepared strengthened life-prolonging burner body copper alloy and the high-temperature-resistant alloy layer are firmly bonded, the bonding strength meets the use requirement, and the service life is prolonged by 3 times.
Claims (3)
1. A preparation method for strengthening and prolonging the service life of a flame cleaning burner is characterized by comprising the following steps of coating a bonding material, charging, sintering and processing:
coating a layer of transition bonding material on one side of the damaged surface of the flame cleaning burner body, then placing a prepared high-temperature-resistant alloy layer on the transition bonding material, and loading the high-temperature-resistant alloy layer into a sintering furnace to finish furnace loading; the transition bonding material is compacted through sintering, metallurgical bonding is formed between the copper alloy and the high-temperature-resistant alloy layer of the flame cleaning burner body, and a product discharged from the burner is machined to a final required size; wherein: the sintering pressure is 0.5-1.0 MPa, the sintering temperature is 800-900 ℃, and the sintering time is 1-2 hours.
2. The method of claim 1, wherein the transitional bonding material is comprised of tin and copper, wherein:
the weight percentage of the components
6.0 to 10.0wt% of tin (Sn)
The balance of copper, the total weight of which meets 100 percent;
wherein: the tin and copper have a particle size of <75 μm and a purity of > 99%.
3. The method of claim 1, wherein the refractory alloy layer comprises cobalt chromium as a major component, and the thickness of the refractory alloy layer is 1mm to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345641.7A CN113976893A (en) | 2021-11-15 | 2021-11-15 | Preparation method for strengthening and prolonging service life of flame cleaning burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345641.7A CN113976893A (en) | 2021-11-15 | 2021-11-15 | Preparation method for strengthening and prolonging service life of flame cleaning burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113976893A true CN113976893A (en) | 2022-01-28 |
Family
ID=79748451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111345641.7A Pending CN113976893A (en) | 2021-11-15 | 2021-11-15 | Preparation method for strengthening and prolonging service life of flame cleaning burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113976893A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1438381A (en) * | 1972-05-22 | 1976-06-03 | Union Carbide Corp | Process for producing a corrosion resistand duplex coating |
| US4005989A (en) * | 1976-01-13 | 1977-02-01 | United Technologies Corporation | Coated superalloy article |
| CN1431336A (en) * | 2003-01-17 | 2003-07-23 | 西安交通大学 | Method for preparing nickel based self fluxing alloy coat on substrate of copper or copper alloy |
| US20040018299A1 (en) * | 1996-12-23 | 2004-01-29 | Arnold James E. | Method of forming a diffusion coating on the surface of a workpiece |
| JP2005220371A (en) * | 2004-02-03 | 2005-08-18 | Hitachi Powdered Metals Co Ltd | High temperature oxidation resistant iron based alloy composite member, its production method, and separator for fuel cell using the same |
| CN206858639U (en) * | 2017-05-02 | 2018-01-09 | 安徽威龙再制造科技股份有限公司 | The multi-element alloy coat and spraying spray tip of a kind of sinking roller |
| CN110144582A (en) * | 2019-04-23 | 2019-08-20 | 西安交通大学 | A kind of metal_based material and preparation method thereof being used to prepare crystallizer or air port |
| CN111989179A (en) * | 2018-04-20 | 2020-11-24 | 普兰西股份有限公司 | Composite body and method for producing composite body |
-
2021
- 2021-11-15 CN CN202111345641.7A patent/CN113976893A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1438381A (en) * | 1972-05-22 | 1976-06-03 | Union Carbide Corp | Process for producing a corrosion resistand duplex coating |
| US4005989A (en) * | 1976-01-13 | 1977-02-01 | United Technologies Corporation | Coated superalloy article |
| US20040018299A1 (en) * | 1996-12-23 | 2004-01-29 | Arnold James E. | Method of forming a diffusion coating on the surface of a workpiece |
| CN1431336A (en) * | 2003-01-17 | 2003-07-23 | 西安交通大学 | Method for preparing nickel based self fluxing alloy coat on substrate of copper or copper alloy |
| JP2005220371A (en) * | 2004-02-03 | 2005-08-18 | Hitachi Powdered Metals Co Ltd | High temperature oxidation resistant iron based alloy composite member, its production method, and separator for fuel cell using the same |
| CN206858639U (en) * | 2017-05-02 | 2018-01-09 | 安徽威龙再制造科技股份有限公司 | The multi-element alloy coat and spraying spray tip of a kind of sinking roller |
| CN111989179A (en) * | 2018-04-20 | 2020-11-24 | 普兰西股份有限公司 | Composite body and method for producing composite body |
| CN110144582A (en) * | 2019-04-23 | 2019-08-20 | 西安交通大学 | A kind of metal_based material and preparation method thereof being used to prepare crystallizer or air port |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107815682B (en) | Method for preparing wear-resistant toughening coating on surface of high manganese steel | |
| CN101109026A (en) | Laser fusion welding method of abrasion-proof heat-proof composite coating on surface of tuyeres of blast furnace port sleeve | |
| CN113122841B (en) | Corrosion-resistant and wear-resistant coating with gradient composite structure and preparation method thereof | |
| CN110699687B (en) | Method for strengthening high-nickel copper alloy glass mold | |
| CN109881109B (en) | Laser cladding material and preparation method of laser cladding coating | |
| CN106563893A (en) | Silver brazing solder of cemented carbide and steel and silver brazing method thereof | |
| CN102677046A (en) | Alloy composite special for laser cladding of rolling mill housings | |
| CN110241411A (en) | Repair the ultrahigh speed laser cladding powder and restorative procedure of impaired water filling combination valve | |
| CN101020998A (en) | Process of flame spray coating heat resistant antiwear alloy onto red copper surface | |
| CN113308662B (en) | Spraying repair method for short-edge copper plate side face of continuous casting crystallizer | |
| CN113976893A (en) | Preparation method for strengthening and prolonging service life of flame cleaning burner | |
| CN108441804B (en) | High-performance metal ceramic composite coating for lithium electric compression roller and preparation method thereof | |
| CN116900434B (en) | Method for improving wear resistance of aluminum alloy resistance spot welding electrode | |
| CN108315732A (en) | A kind of self-fluxing alloyed powder | |
| CN110616451B (en) | Method for enhancing strength of welding interface of hard alloy and metal | |
| CN117089834A (en) | Refractory high-entropy alloy powder for ultra-high-speed laser cladding, coating and preparation method thereof | |
| CN110699627A (en) | Corrosion-resistant electric arc spraying powder core wire material and coating preparation method | |
| CN110444384A (en) | A kind of neodymium iron boron magnetic body surface flam spray-welding layer and preparation method thereof | |
| CN114012095A (en) | Transitional bonding material for flame cleaning burner enhanced life-prolonging process and application thereof | |
| CN110714183B (en) | Method for making brazed diamond tools | |
| CN115161637A (en) | Wear-resistant and corrosion-resistant coating on surface of piston rod and preparation method thereof | |
| CN113699517B (en) | Metallurgical roller, surface wear-resistant coating thereof, alloy spraying powder and preparation method | |
| JPH11209863A (en) | Production of wear resistant parts | |
| CN107244900B (en) | Copper anode casting mold repair material and application thereof | |
| CN113322457B (en) | High-wear-resistance pressing nut with gradient coating and preparation method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |