CN110904448A - Copper-based solid-liquid bimetal composite casting method - Google Patents
Copper-based solid-liquid bimetal composite casting method Download PDFInfo
- Publication number
- CN110904448A CN110904448A CN201911197419.XA CN201911197419A CN110904448A CN 110904448 A CN110904448 A CN 110904448A CN 201911197419 A CN201911197419 A CN 201911197419A CN 110904448 A CN110904448 A CN 110904448A
- Authority
- CN
- China
- Prior art keywords
- solid
- liquid
- casting method
- copper
- 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
Images
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
- C23C24/106—Coating with metal alloys or metal elements only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a solid-liquid bimetal composite casting method taking a copper base as a medium, wherein a solid matrix layer is common A3 steel, and a liquid alloy layer is wear-resistant alloy steel; the solid-liquid casting method comprises the following steps: firstly, carrying out matrix pretreatment on a solid matrix layer, and removing an oxide layer on the surface of the solid matrix layer; secondly, cladding a dielectric layer through laser; the laser power is 3000-; thirdly, implanting the solid matrix layer subjected to laser cladding into a sand mold; and then casting a liquid alloy layer, and fourthly, carrying out surface heat treatment through intermediate frequency quenching, wherein the intermediate frequency quenching depth is 2-10 mm. According to the solid-liquid bimetal composite casting method with the copper base as the medium, the composite material matrix is made of low-cost common A3 steel and can be repeatedly used until the composite material matrix fails, so that the energy and cost are saved, and the material and emission are reduced; and a laser cladding process is utilized to obtain an excellent metallurgical bonding layer, so that the optimized bonding strength of the composite material is achieved.
Description
Technical Field
The invention belongs to the technical field of bimetal composite casting, and particularly relates to a solid-liquid bimetal composite casting method taking copper as a medium.
Background
In the field of easily damaged parts of mining equipment, the effective utilization rate of workpieces is about 2% -15%, once a working area fails, the whole workpiece is scrapped and recycled, and a large amount of resources are wasted. The remanufacturing technology is an industry for implementing high-technology repair and modification on waste products, aims at carrying out remanufacturing engineering design on damaged or to-be-scrapped parts on the basis of analysis such as performance failure analysis, service life assessment and the like, and adopts a series of related advanced manufacturing technologies to ensure that the quality of remanufactured products reaches or exceeds that of new products. The remanufacturing technology effectively solves the problems and can achieve the indexes of saving cost by 50%, saving energy by 60%, saving materials by 70% and saving energy and reducing emission by 80%.
At present, in the field of bimetallic casting, no effective method for metallurgically bonding A3 steel and wear-resistant alloy steel appears, and improvement is urgently needed.
Disclosure of Invention
The invention aims to provide a solid-liquid bimetal composite casting method taking a copper base as a medium, which can reduce energy and resource waste caused by remelting wear-resistant materials after use, and can obtain a metallurgical bonding interface of A3 steel and wear-resistant alloy steel and a wear-resistant part with high strength.
The purpose of the invention is realized by the following technical scheme: a copper base is the solid-liquid bimetal composite casting method of the medium, its solid matrix layer is ordinary A3 steel, the liquid alloy layer is the wear-resisting alloy steel; the solid-liquid casting method comprises the following steps:
firstly, carrying out matrix pretreatment on a solid matrix layer, and removing an oxide layer on the surface of the solid matrix layer;
secondly, cladding a dielectric layer through laser; the laser power is 3000-;
thirdly, preheating the solid matrix layer subjected to laser cladding to 200-300 ℃, and implanting the solid matrix layer into a sand mold; then casting a liquid alloy layer at the temperature of 1380-1520 ℃;
and fourthly, performing surface heat treatment through intermediate frequency quenching, wherein the intermediate frequency quenching depth is 2-10 mm.
As one of preferable modes, in the second step, the dielectric layer refers to: copper deposited on the substrate by laser cladding.
As one preferable mode, in the second step, the laser cladding process condition is that the laser power is 4000 watts, the powder granularity is 120 meshes, and the cladding thickness is 3 mm.
In a preferable mode, in the third step, the sand mold to be implanted after cladding is 50 to 100 mesh precoated sand.
As one of the preferable modes, in the third step, the matrix after cladding is preheated to 240 ℃; the temperature for casting the liquid alloy layer was 1480 ℃.
In a preferred embodiment, in the fourth step, the mid-frequency hardening depth is 8 mm.
In a preferred embodiment, the heat treatment of the intermediate frequency hardening surface in the fourth step is: the medium frequency power supply heats the surface of the workpiece through the profiling coil, the temperature is raised to about 1050 degrees, and the water is quickly cooled.
In a preferred embodiment, the method of pretreating the substrate in the first step comprises: and (4) heating in a box furnace.
In a preferred embodiment, the method for removing oxidation of the solid base layer in the first step comprises: and (5) performing shot blasting and polishing on the surface.
Compared with the prior art, the invention has the beneficial effects that: according to the solid-liquid bimetal composite casting method with the copper base as the medium, the composite material matrix is made of low-cost common A3 steel and can be repeatedly used until the composite material matrix fails, so that the energy and cost are saved, and the material and emission are reduced; and an advanced laser cladding process is utilized to obtain an excellent metallurgical bonding layer, so that the optimized bonding strength of the composite material is achieved.
Drawings
Fig. 1 is a schematic structural view before cladding in the present invention.
In the drawings: a solid substrate layer 1; a dielectric layer 2; a liquid alloy layer 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: as shown in fig. 1:
a copper base is the compound casting method of solid-liquid bimetal of the medium, its solid matrix layer 1 is ordinary A3 steel, with low costs, can use repeatedly, the liquid alloy layer 3 is the wear-resisting alloy steel; the dielectric layer 2 is copper cladded on the substrate through laser, and the invention obtains an excellent metallurgical bonding layer by utilizing an advanced laser cladding process to achieve the optimized bonding strength of the composite material.
The solid-liquid casting method comprises the following steps:
firstly, matrix pretreatment of a solid matrix layer is carried out, and an oxide layer is removed from the surface of the solid matrix layer. Specifically, the method for pretreating the substrate comprises the following steps: and (4) heating in a box furnace. The box-type furnace is convenient to operate, rapid in temperature rise, programmable, PID self-tuning, automatic in temperature rise, automatic in heat preservation and automatic in temperature reduction, and does not need to be on duty; the electric furnace can be operated by the computer through communication with the computer. The box-type furnace mainly comprises a furnace frame, a furnace shell, a furnace lining, a furnace door device, an electric heating element and an auxiliary device. The furnace frame is used for bearing the load of a furnace lining and a workpiece, and steel sections are usually welded into a frame which is wrapped by steel plates. The furnace shell is used for protecting a furnace lining, reinforcing an electric furnace structure and keeping the sealing performance of the electric furnace, and is formed by welding a common steel plate which is attached to a steel frame.
The method for removing oxidation of the solid matrix layer comprises the following steps: and (5) performing shot blasting and polishing on the surface. The shot blasting is used for surface treatment, the striking force is large, the cleaning effect is obvious, the equipment is simple, the cost is low, the limitation of the shape and the position of a workpiece is avoided, the operation is convenient, and the working environment is poor. Shot peening is widely used to improve mechanical strength, wear resistance, fatigue resistance, corrosion resistance, and the like of parts.
Secondly, cladding a dielectric layer through laser; the dielectric layer in this embodiment refers to: the copper on the substrate is cladded by laser, the laser power is 4000 watts, the powder granularity is 120 meshes, and the cladding thickness is 3 mm. The specific using method of laser cladding comprises the following steps: and (4) processing the copper powder by a laser and cladding the copper powder on the matrix.
Thirdly, preheating the solid matrix layer subjected to laser cladding to 240 ℃, and implanting the solid matrix layer into a 50-100-mesh precoated sand mold; then, a liquid alloy layer was cast at 1480 ℃. The concrete using process of the implanted sand box comprises the following steps: the matrix is loaded into the prepared sand mold by adopting a transfer tool, and the specific method and the process of casting are as follows: bottom pouring and low-temperature quick pouring are adopted.
And fourthly, performing surface heat treatment through intermediate frequency quenching, wherein the intermediate frequency quenching depth is 8 mm. The specific process of intermediate frequency quenching is as follows: the medium frequency power supply heats the surface of the workpiece through the profiling coil, the temperature is raised to about 1050 degrees, and the water is quickly cooled.
Example 2:
unlike embodiment 1, in this embodiment, the same effects are obtained with different parameters.
A copper base is the solid-liquid bimetal composite casting method of the medium, its solid matrix layer is ordinary A3 steel, the liquid alloy layer is the wear-resisting alloy steel; the solid-liquid casting method comprises the following steps:
firstly, carrying out matrix pretreatment on a solid matrix layer, and removing an oxide layer on the surface of the solid matrix layer;
secondly, cladding a dielectric layer through laser; the laser power is 3000 watts, the powder granularity is 150 meshes, and the cladding thickness is 1.2 mm;
thirdly, preheating the solid matrix layer subjected to laser cladding to 250 ℃, and implanting a sand mold; then casting a liquid alloy layer at the temperature of 1420 ℃;
and fourthly, performing surface heat treatment through intermediate frequency quenching, wherein the intermediate frequency quenching depth is 7 mm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A solid-liquid bimetal composite casting method taking copper as a medium is characterized in that: the solid matrix layer is ordinary A3 steel, and the liquid alloy layer is wear-resistant alloy steel; the solid-liquid casting method comprises the following steps:
firstly, carrying out matrix pretreatment on a solid matrix layer, and removing an oxide layer on the surface of the solid matrix layer;
secondly, cladding a dielectric layer through laser; the laser power is 3000-;
thirdly, preheating the solid matrix layer subjected to laser cladding to 200-300 ℃, and implanting the solid matrix layer into a sand mold; then casting a liquid alloy layer at the temperature of 1380-1520 ℃;
and fourthly, performing surface heat treatment through intermediate frequency quenching, wherein the intermediate frequency quenching depth is 2-10 mm.
2. The copper-based solid-liquid bimetal composite casting method as claimed in claim 1, which is characterized in that: in the second step, the dielectric layer refers to: copper deposited on the substrate by laser cladding.
3. The copper-based solid-liquid bimetal composite casting method as claimed in claim 2, characterized in that: in the second step, the laser cladding process conditions are that the laser power is 4000 watts, the powder granularity is 120 meshes, and the cladding thickness is 3 mm.
4. The copper-based solid-liquid bimetal composite casting method as claimed in claim 1, which is characterized in that: in the third step, the sand mold implanted after cladding is 50-100 meshes of coated sand.
5. The copper-based solid-liquid bimetal composite casting method as claimed in claim 4, wherein the copper-based solid-liquid bimetal composite casting method comprises the following steps: in the third step, the cladded matrix is preheated to 240 ℃; the temperature for casting the liquid alloy layer was 1480 ℃.
6. The copper-based solid-liquid bimetal composite casting method as claimed in claim 1, which is characterized in that: and in the fourth step, the medium-frequency quenching depth is 8 mm.
7. The copper-based solid-liquid bimetal composite casting method as claimed in claim 6, characterized in that: in the fourth step, the intermediate frequency quenching surface heat treatment method comprises the following steps: the medium frequency power supply heats the surface of the workpiece through the profiling coil, the temperature is raised to about 1050 degrees, and the water is quickly cooled.
8. The copper-based solid-liquid bimetal composite casting method as claimed in claim 1, which is characterized in that: in the first step, the method for pretreating the substrate comprises the following steps: and (4) heating in a box furnace.
9. The copper-based solid-liquid bimetal composite casting method as claimed in claim 1, which is characterized in that: in the first step, the method for removing oxidation of the solid matrix layer is surface shot blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197419.XA CN110904448A (en) | 2019-11-29 | 2019-11-29 | Copper-based solid-liquid bimetal composite casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197419.XA CN110904448A (en) | 2019-11-29 | 2019-11-29 | Copper-based solid-liquid bimetal composite casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110904448A true CN110904448A (en) | 2020-03-24 |
Family
ID=69820400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911197419.XA Pending CN110904448A (en) | 2019-11-29 | 2019-11-29 | Copper-based solid-liquid bimetal composite casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110904448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280022A (en) * | 2021-04-15 | 2021-08-20 | 清华大学 | Connecting joint of heterogeneous material gradient structure and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3674175D1 (en) * | 1985-12-25 | 1990-10-18 | Toyota Motor Co Ltd | ALUMINUM CYLINDER HEAD WITH ONE-PIECE SHAPED VALVE SEAT THROUGH COPPER COATING AND UNDER LAYER. |
| CN102389962A (en) * | 2011-11-22 | 2012-03-28 | 北京科技大学 | Particle infiltration casting process for preparing hard alloy/steel laminated composite material |
| US20160001358A1 (en) * | 2014-07-02 | 2016-01-07 | Caterpillar Inc. | Methods of forming a layer of cladding material on a component, and a related system |
| CN106311769A (en) * | 2016-08-19 | 2017-01-11 | 合肥东方节能科技股份有限公司 | Manufacturing method for native hard multiphase composite guide roller |
| CN107442571A (en) * | 2017-09-19 | 2017-12-08 | 湖南三泰新材料股份有限公司 | A kind of composite high speed steel rider set and its manufacture method |
-
2019
- 2019-11-29 CN CN201911197419.XA patent/CN110904448A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3674175D1 (en) * | 1985-12-25 | 1990-10-18 | Toyota Motor Co Ltd | ALUMINUM CYLINDER HEAD WITH ONE-PIECE SHAPED VALVE SEAT THROUGH COPPER COATING AND UNDER LAYER. |
| CN102389962A (en) * | 2011-11-22 | 2012-03-28 | 北京科技大学 | Particle infiltration casting process for preparing hard alloy/steel laminated composite material |
| US20160001358A1 (en) * | 2014-07-02 | 2016-01-07 | Caterpillar Inc. | Methods of forming a layer of cladding material on a component, and a related system |
| CN106311769A (en) * | 2016-08-19 | 2017-01-11 | 合肥东方节能科技股份有限公司 | Manufacturing method for native hard multiphase composite guide roller |
| CN107442571A (en) * | 2017-09-19 | 2017-12-08 | 湖南三泰新材料股份有限公司 | A kind of composite high speed steel rider set and its manufacture method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280022A (en) * | 2021-04-15 | 2021-08-20 | 清华大学 | Connecting joint of heterogeneous material gradient structure and preparation method thereof |
| CN113280022B (en) * | 2021-04-15 | 2022-02-22 | 清华大学 | Connecting joint of heterogeneous material gradient structure and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105177569B (en) | A kind of nodular cast iron surface laser restorative procedure | |
| CN104385703B (en) | Complex gradient coating that a kind of blade surface is repaired and preparation method thereof | |
| CN101767262B (en) | Reproducing method of forging mold by using composite build-up welding | |
| CN102240860A (en) | Method and equipment for manufacturing gradient material mould | |
| CN107937911B (en) | Method for laser cladding of wear-resistant and impact-resistant coating on surface of cast steel | |
| CN107043882B (en) | A kind of preparation method of diamond composite | |
| CN106756742B (en) | A kind of electric spark deposition method for metal roller surface peening coating | |
| CN105855788A (en) | Welding process for repairing crack of ball milling iron casting | |
| CN101092658A (en) | Method for prolonging service life of key parts and components of production equipment of chain cage machine - rotary kiln ball lumps | |
| CN103614687A (en) | Preparation technique of continuous casting crystallizer copper plate surface cermet coating | |
| CN103614724A (en) | Preparation technique of continuous casting crystallizer copper plate surface cermet coating | |
| CN110904448A (en) | Copper-based solid-liquid bimetal composite casting method | |
| CN102069270A (en) | Method for repairing straightening machine supporting roller by flux-cored wire surfacing | |
| CN112809311A (en) | Method for repairing and remanufacturing forging-grade parts, terminal and medium | |
| CN104593785A (en) | Method for strengthening surface of hot forging mould of steel automotive part | |
| CN107779859B (en) | A kind of preparation method of milling train liner plate | |
| CN104532131A (en) | Method for prolonging service life of slitting wheel of rolling mill | |
| CN101612665A (en) | Selective sintering of compacted components | |
| WO2023142397A1 (en) | Manufacturing method for copper-steel composite wear-resistant bearing bushing with high-stress self-tightening force | |
| CN113579859B (en) | Method for prolonging service life of continuous casting crystallizer copper plate under condition of high scrap steel ratio | |
| CN112548104B (en) | Method for reducing hot cracking sensitivity in die steel laser additive repair process | |
| CN109047725A (en) | A kind of renovation technique of high-temperature heat treatment furnace roller | |
| CN202438684U (en) | Ultra-durable ball-milling ball | |
| CN106555077B (en) | A kind of laser repairing material of pelletizer die | |
| CN104630768A (en) | Hot-forging die surface composite strengthening method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200324 |
|
| RJ01 | Rejection of invention patent application after publication |