CN105543770A - Surface treatment technique for cutting pick - Google Patents
Surface treatment technique for cutting pick Download PDFInfo
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- CN105543770A CN105543770A CN201510965644.9A CN201510965644A CN105543770A CN 105543770 A CN105543770 A CN 105543770A CN 201510965644 A CN201510965644 A CN 201510965644A CN 105543770 A CN105543770 A CN 105543770A
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- Prior art keywords
- pick
- carburizing
- temperature
- cutting pick
- pick body
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- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a surface treatment technique for a cutting pick. 42CrMo alloy steel serves as structural steel of a cutting pick body. The surface treatment technique for the cutting pick body comprises the following technological steps that (1) carburizing treatment is conducted, the cutting pick body is placed in a pit carburizing furnace, the carburizing temperature is 900 DEG C, heat preservation is conducted for 7-10.5 hours, cooling is conducted till the temperature of the cutting pick body reaches 820 DEG C, and then the cutting pick body is discharged out of the furnace and placed in a slow cooling tank to be cooled slowly; (2) brazing and quenching are conducted, a cutting pick tool bit is brazed onto a pick head of the cutting pick body treated in the step (1), the welding temperature during welding is 950-960 DEG C, the cutting pick body is quenched by means of waste heat of welding after welding is completed, and the temperature of the pick head of the cutting pick body is controlled to be 850-860 DEG C; (3) low-temperature tempering is conducted, low-temperature tempering is conducted on the cutting pick treated in the step (2) at the temperature of 450-460 DEG C, and the quenching time is 2.5 hours; and (4) shot blasting is conducted. According to the surface treatment technique for the cutting pick, the steps are simple, time consumption is low, and energy consumption is low; aviation kerosene is used for releasing active carbon atoms under a high-temperature condition, the active carbon atoms can penetrate into a workpiece more easily, the carbon atoms are evenly distributed, and the concentration gradient of the carbon atoms is gentle.
Description
Technical field
The present invention relates to a kind of process of surface treatment of pick, particularly relate to a kind of pick process of surface treatment of coalcutter class.
Background technology
Pick is the cutlery that coal mining machine and ore deposit use in tunnelling machinery, the quality of pick quality directly affects the efficiency of digger and the production cost of enterprise, along with people are to the increase of the energy particularly coal demand, in order to improve digging efficiency, the power of coalcutter constantly increases, more and more higher to the specification of quality of pick, as coal winning machine cutting bit material, require that it has higher intensity, hardness and wear resistance, high flexural strength and erosion resistance, produce fracture to prevent pick use procedure, bend, be out of shape and premature wear inefficacy.The pick performance major part that current domestic manufacturer produces can not require, the units such as coal mining industry, tunnelling engineering, road maintenance are caused mostly to adopt the pick of import, and import pick price is high, cost remains high, especially, now in recessed market situation, how to meet the high-quality pick reducing a kind of alternative import of underground mining cost needs exploitation and there is very significance.
More about the data of literatures of the process of surface treatment of pick at present, as number of patent application be 200710156941.4 Chinese patent literature " surface treatment technique for coal winning machine cutting bit " its adopt 35 Cr-Mo-V structural alloy steels as material, carbon dust is adopted to carry out carburizing as material to pick, and boronising, molybdenum, chromium are carried out to pick, and then carry out salt bath, anneal, temper, its step is complicated, infiltration rate degree is slow, and diffusion layer organization is uneven, thus make product metallographic uneven, unstable product quality.
Application number is the Chinese invention patent " the Boro-carburizing microalloying method of coal winning machine cutting bit " of 200810123512.1, it passes through pickling, carburizing, titanium, manganese process, the steps such as boronising, tungsten, chromic salts bath, anneal, temper, shot peening, its step is complicated, and this patent applicant thinks and carries out pickling before carburization, necessary, but in actual cementation process, carry out in the temperature of furnace temperature up to 900 degrees centigrade, need the cracking vaporization all in high temperature environments of organic impurity class material, therefore this step effect is little.
Summary of the invention
The object of the present invention is to provide a kind of process of surface treatment improving pick hardness and work-ing life.Its way of realization is as follows:
A kind of process of surface treatment of pick, comprise pick cutter head and pick body, described pick body adopts 42CrMo steel alloy as structure iron, carries out feeding, forging forming, metalworking is shaping, surface treatment, is characterized in that, the technical process of described pick surface process is as follows: pick body is placed in pit carburizing furnace by (1) carburizing treatment, adopt Drip Gas Carburizing Process to carry out carburizing, carburizing agent is liquid carburizing agent; Carburizing temperature is 900 DEG C, be incubated 7 ~ 10.5 hours, properly distributed is oozed by force and the ratio of diffusion time, its objective is that to make infiltration layer carbon profile mild, make layer surface carbon content reach 0.8%-0.90%, coming out of the stove comes out of the stove after being cooled to 820 DEG C places the slow cooling of slow cooling tank, takes out pick body after being cooled to room temperature, carry out Shot Blasting, remove the impurity such as surface anti-seepage coating; (2) soldering and quenching are by the pick body of pick cutter head soldering after processing through step (1), during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 950 ~ 960 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick body tooth head controls at 850 ~ 860 DEG C; (3) pick after step (2) process is carried out low-temperaturetempering by low-temperaturetempering under 450 ~ 460 DEG C of conditions, and tempering time is 2.5h;
(4) Shot Blasting: the pick after low-temperaturetempering is carried out Shot Blasting, the oxide skin on removing surface etc. are dirty.
Preferably, described liquid carburizing agent is the one in aviation kerosene, methyl alcohol, ethanol, and preferred, aviation kerosene selected by liquid carburizing agent.
Wherein, the material of described pick cutter head is Wimet.
The preferred technical scheme of the present invention is: pick surface treatment process: the pick body adopting 42CrMo steel alloy to process is placed in pit carburizing furnace by (1), Drip Gas Carburizing Process is adopted to carry out carburizing, the enriching agent adopted is aviation kerosene, carburizing temperature is 900 DEG C, and insulation 10.5h, comes out of the stove after being cooled to 820 DEG C, and be placed in the slow cooling of slow cooling tank, take out pick body after being cooled to room temperature, and carry out Shot Blasting, remove surface impurity;
(2) by the pick cutter head soldering of being made up of Wimet on the pick body after step (1) process, during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 960 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick end of body controls at 860 DEG C;
(3) pick after step (2) being processed carries out low-temperaturetempering under 460 DEG C of conditions, and tempering time is 2.5h.
Aviation kerosene is selected to be because of aviation kerosene at high temperature as the reason of best carburizing agent, be decomposed into the hydrocarbons such as hydrogen, carbon monoxide, carbonic acid gas, methane, hydrocarbon polymer reacts and can obtain active atoms of carbon, the perviousness of active atoms of carbon is strong, and is evenly distributed and has mild concentration gradient.
Beneficial effect of the present invention is, the step of this technique is simple, and spent time is short, and energy consumption is low; Its deuterzooid technique carburization process adopts aviation kerosene instillation carburizing, and it utilizes aviation kerosene at high temperature to carry out Pintsch process, discharges active atoms of carbon, and it is more prone to penetrate into workpiece, and carbon atom is evenly distributed and has mild concentration gradient in workpiece; The metallographic of the pick body after this art breading is very good, and workpiece hardness improves significantly; Simultaneously the pick cutter head of pick body after treatment has high wear resisting property and high impelling strength, and wherein the surface hardness of pick cutter head reaches more than HRC62, and core hardness reaches HRC46-47, U-shaped notch shock A
kuthe comprehensive mechanical performance improving pick that 60J is larger on the whole and work-ing life.
Accompanying drawing explanation
Fig. 1 is pick cutter head core metallographic.
Fig. 2 is pick bit interface metallographic.
Fig. 3 is pick body section figure.
In figure: 1 pick body tooth head 2 cutter head 3 pick body tooth handle.
Embodiment
Below in conjunction with embodiment, further concrete elaboration is carried out to technical scheme of the present invention.
Embodiment 1
Present embodiment discloses a kind of process of surface treatment of pick, its step is as follows:
(1) the pick body adopting 42CrMo steel alloy to process is placed in pit carburizing furnace, Drip Gas Carburizing Process is adopted to carry out carburizing, the carburizing agent adopted is methyl alcohol, carburizing temperature is 900 DEG C, and insulation 7h, comes out of the stove after being cooled to 820 DEG C, and be placed in the slow cooling of slow cooling tank, take out pick body after being cooled to room temperature, and carry out Shot Blasting, remove surface impurity;
(2) by the pick cutter head soldering of being made up of hard alloy steel on the pick body after step (1) process, during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 950 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick end of body controls at 850 DEG C;
(3) pick after step (2) being processed carries out low-temperaturetempering under 450 DEG C of conditions, and tempering time is 2.5h;
(4) Shot Blasting: the pick after low-temperaturetempering is carried out Shot Blasting, the oxide skin on removing surface etc. are dirty.
Embodiment 2
Present embodiment discloses a kind of process of surface treatment of pick, its step is as follows:
(1) the pick body adopting 42CrMo steel alloy to process is placed in pit carburizing furnace, Drip Gas Carburizing Process is adopted to carry out carburizing, the enriching agent adopted is aviation kerosene, carburizing temperature is 900 DEG C, and insulation 10.5h, comes out of the stove after being cooled to 820 DEG C, and be placed in the slow cooling of slow cooling tank, take out pick body after being cooled to room temperature, and remove surface impurity, and carry out Shot Blasting;
(2) by the pick cutter head soldering of being made up of hard alloy steel on the pick body after step (1) process, during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 960 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick end of body controls at 860 DEG C;
(3) pick after step (2) being processed carries out low-temperaturetempering under 460 DEG C of conditions, and tempering time is 2.5h;
(4) Shot Blasting: the pick after low-temperaturetempering is carried out Shot Blasting, the oxide skin on removing surface etc. are dirty.
Embodiment 3
Present embodiment discloses a kind of process of surface treatment of pick, its step is as follows:
(1) the pick body adopting 42CrMo steel alloy to process is placed in pit carburizing furnace, Drip Gas Carburizing Process is adopted to carry out carburizing, the enriching agent adopted is ethanol, carburizing temperature is 900 DEG C, and insulation 10.5h, comes out of the stove after being cooled to 820 DEG C, and be placed in the slow cooling of slow cooling tank, take out pick body after being cooled to room temperature, and carry out Shot Blasting, remove surface impurity;
(2) by the pick cutter head soldering of being made up of Wimet on the pick body after step (1) process, during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 960 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick end of body controls at 860 DEG C;
(3) pick after step (2) being processed carries out low-temperaturetempering under 460 DEG C of conditions, and tempering time is 2.5h;
(4) Shot Blasting: the pick after low-temperaturetempering is carried out Shot Blasting, the oxide skin on removing surface etc. are dirty.
Embodiment 4
Adopt HR-150A sclerometer and NikonERIPHOT300 to detect the hardness of pick and metallographic metallographic, detection method is ordinary method, is not repeated herein.
Test item, the pick head surface hardness of embodiment 1 ~ 3 and core hardness; The core of U-shaped notch shock and embodiment 2 and surperficial metallographic.
Find by detecting, the surface hardness of embodiment 1 and the pick head corresponding to embodiment 3 reaches more than HRC62, and core hardness reaches HRC46-47, and the surface hardness of embodiment 2 pick head reaches more than HRC63, and core hardness reaches HRC46-47.The U-shaped notch shock of the pick head of embodiment 1 ~ 3 is Aku>60J/cm, and wherein the core of embodiment 2 and surperficial metallographic are respectively as Fig. 1 and Fig. 2.Can find out that the core of pick body tooth head is very good with the metallographic situation on surface by Fig. 1 and Fig. 2.
The foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content thereof to do equivalent structure or equivalence transformation; or direct or indirect other association areas used beyond the present invention, all can be considered in scope of patent protection of the present invention.
Claims (3)
1. the process of surface treatment of a pick, comprise pick cutter head and pick body, wherein pick body is divided into again pick body tooth head and pick body tooth handle, and described pick body adopts 42CrMo steel alloy as structure iron, carry out feeding, forging forming, metalworking is shaping, surface treatment, it is characterized in that, the technical process of described pick surface process is as follows: pick body is placed in pit carburizing furnace by (1) carburizing treatment, and adopt Drip Gas Carburizing Process to carry out carburizing, carburizing agent is liquid carburizing agent; Carburizing temperature is 900 DEG C, is incubated and comes out of the stove for 7 ~ 10.5 hours, comes out of the stove and places the slow cooling of slow cooling tank, take out pick body, carry out Shot Blasting after being cooled to room temperature after being cooled to 820 DEG C; (2) soldering and quenching are by the pick body tooth head of pick cutter head soldering after processing through step (1), during welding, select copper nickel zinc-manganese silicon B-Cu55NiMnSi as solder, welding temperature is 950 ~ 960 DEG C, waste heat when having welded rear utilization welding quenches to pick body, and the temperature of pick body tooth head controls at 850 ~ 860 DEG C; (3) pick after step (2) process is carried out low-temperaturetempering by low-temperaturetempering under 450 ~ 460 DEG C of conditions, and tempering time is 2.5h; (4) pick after low-temperaturetempering is carried out Shot Blasting by Shot Blasting, and the oxide skin on removing surface etc. are dirty.
2. the process of surface treatment of pick according to claim 1, is characterized in that described liquid carburizing agent selects aviation kerosene, methyl alcohol, ethanol.
3. pick process of surface treatment according to claim 1, is characterized in that, the material of described pick cutter head is Wimet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965644.9A CN105543770A (en) | 2015-12-22 | 2015-12-22 | Surface treatment technique for cutting pick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965644.9A CN105543770A (en) | 2015-12-22 | 2015-12-22 | Surface treatment technique for cutting pick |
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| CN105543770A true CN105543770A (en) | 2016-05-04 |
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| CN201510965644.9A Pending CN105543770A (en) | 2015-12-22 | 2015-12-22 | Surface treatment technique for cutting pick |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141595A (en) * | 2016-08-11 | 2016-11-23 | 镇江市宝偃工程机械有限公司 | The soldering of pick and heat treatment integrated technique |
| CN106593439A (en) * | 2016-11-30 | 2017-04-26 | 安徽省皖江机电设备制造有限公司 | High-abrasion-resistance and high-impact-resistance mining cutting teeth and machining method thereof |
| CN108531851A (en) * | 2018-04-27 | 2018-09-14 | 宁夏石炭井炭化实业公司 | A kind of heat treatment process of shallow-tank separator sprocket wheel |
| CN109112469A (en) * | 2018-09-19 | 2019-01-01 | 温岭市大山热处理厂（普通合伙） | A kind of connector heat treatment process of 42CrMo material |
| CN109807555A (en) * | 2019-01-15 | 2019-05-28 | 常德市中天精密工具有限公司 | A kind of interference cold pressing treatment method of break bar cutter ring |
| CN109909642A (en) * | 2019-04-04 | 2019-06-21 | 扬州工业职业技术学院 | A kind of pick-shaped cutter soldering solder and pick-shaped cutter method for welding |
| CN110607424A (en) * | 2019-09-09 | 2019-12-24 | 合肥锟擎科技有限责任公司 | Pick heat treatment process adopting GCr15SiMn as pick body material |
| CN110628989A (en) * | 2019-09-09 | 2019-12-31 | 合肥锟擎科技有限责任公司 | Plasma arc hardening process for cutting pick body |
| CN110684887A (en) * | 2019-09-09 | 2020-01-14 | 合肥锟擎科技有限责任公司 | Pick heat treatment process adopting 55SiMnMo as pick body material |
| CN111172493A (en) * | 2019-12-24 | 2020-05-19 | 江苏大学 | Boron-carbon co-cementation method for improving wear resistance of martensitic stainless steel |
| CN111188616A (en) * | 2020-01-06 | 2020-05-22 | 浙江昆特姆科技有限公司 | Cutting pick, cutting pick production process and cutting pick production device |
| CN111515703A (en) * | 2020-04-20 | 2020-08-11 | 安徽菱力设备科技有限公司 | Scraper welding stress relieving process |
| CN111810152A (en) * | 2020-06-30 | 2020-10-23 | 株洲信达机械科技有限公司 | Cutting pick and machining method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994512A (en) * | 2010-11-03 | 2011-03-30 | 宁波市胜源技术转移有限公司 | Technology for manufacturing cutting tooth for mining coal and minerals |
| CN102069355A (en) * | 2010-12-27 | 2011-05-25 | 北京工业大学 | Production method for pick-like bit |
| CN103032069A (en) * | 2012-10-22 | 2013-04-10 | 安徽省皖江机电设备制造有限公司 | Production method of cutting picks of coal mining machine |
| CN103774083A (en) * | 2012-10-18 | 2014-05-07 | 西安交大京盛科技发展有限公司 | Direct-quenching shallow layer carburizing method |
| CN104047604A (en) * | 2014-06-10 | 2014-09-17 | 高建军 | Compound cutting pick and manufacturing method thereof |
-
2015
- 2015-12-22 CN CN201510965644.9A patent/CN105543770A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994512A (en) * | 2010-11-03 | 2011-03-30 | 宁波市胜源技术转移有限公司 | Technology for manufacturing cutting tooth for mining coal and minerals |
| CN102069355A (en) * | 2010-12-27 | 2011-05-25 | 北京工业大学 | Production method for pick-like bit |
| CN103774083A (en) * | 2012-10-18 | 2014-05-07 | 西安交大京盛科技发展有限公司 | Direct-quenching shallow layer carburizing method |
| CN103032069A (en) * | 2012-10-22 | 2013-04-10 | 安徽省皖江机电设备制造有限公司 | Production method of cutting picks of coal mining machine |
| CN104047604A (en) * | 2014-06-10 | 2014-09-17 | 高建军 | Compound cutting pick and manufacturing method thereof |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141595A (en) * | 2016-08-11 | 2016-11-23 | 镇江市宝偃工程机械有限公司 | The soldering of pick and heat treatment integrated technique |
| CN106593439A (en) * | 2016-11-30 | 2017-04-26 | 安徽省皖江机电设备制造有限公司 | High-abrasion-resistance and high-impact-resistance mining cutting teeth and machining method thereof |
| CN108531851A (en) * | 2018-04-27 | 2018-09-14 | 宁夏石炭井炭化实业公司 | A kind of heat treatment process of shallow-tank separator sprocket wheel |
| CN109112469A (en) * | 2018-09-19 | 2019-01-01 | 温岭市大山热处理厂（普通合伙） | A kind of connector heat treatment process of 42CrMo material |
| CN109807555A (en) * | 2019-01-15 | 2019-05-28 | 常德市中天精密工具有限公司 | A kind of interference cold pressing treatment method of break bar cutter ring |
| CN109909642A (en) * | 2019-04-04 | 2019-06-21 | 扬州工业职业技术学院 | A kind of pick-shaped cutter soldering solder and pick-shaped cutter method for welding |
| CN109909642B (en) * | 2019-04-04 | 2021-10-15 | 扬州工业职业技术学院 | Brazing filler metal for brazing pick-shaped cutting tooth and brazing method for pick-shaped cutting tooth |
| CN110684887A (en) * | 2019-09-09 | 2020-01-14 | 合肥锟擎科技有限责任公司 | Pick heat treatment process adopting 55SiMnMo as pick body material |
| CN110628989A (en) * | 2019-09-09 | 2019-12-31 | 合肥锟擎科技有限责任公司 | Plasma arc hardening process for cutting pick body |
| CN110607424A (en) * | 2019-09-09 | 2019-12-24 | 合肥锟擎科技有限责任公司 | Pick heat treatment process adopting GCr15SiMn as pick body material |
| CN111172493A (en) * | 2019-12-24 | 2020-05-19 | 江苏大学 | Boron-carbon co-cementation method for improving wear resistance of martensitic stainless steel |
| CN111172493B (en) * | 2019-12-24 | 2021-10-12 | 江苏大学 | Boron-carbon co-cementation method for improving wear resistance of martensitic stainless steel |
| CN111188616A (en) * | 2020-01-06 | 2020-05-22 | 浙江昆特姆科技有限公司 | Cutting pick, cutting pick production process and cutting pick production device |
| CN111188616B (en) * | 2020-01-06 | 2021-11-02 | 浙江虹邦地质装备科技有限公司 | Cutting pick, cutting pick production process and cutting pick production device |
| CN111515703A (en) * | 2020-04-20 | 2020-08-11 | 安徽菱力设备科技有限公司 | Scraper welding stress relieving process |
| CN111810152A (en) * | 2020-06-30 | 2020-10-23 | 株洲信达机械科技有限公司 | Cutting pick and machining method thereof |
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