CN101570819A - Heating processing technology for wear-resistant cutting board - Google Patents
Heating processing technology for wear-resistant cutting board Download PDFInfo
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- CN101570819A CN101570819A CNA2009103034070A CN200910303407A CN101570819A CN 101570819 A CN101570819 A CN 101570819A CN A2009103034070 A CNA2009103034070 A CN A2009103034070A CN 200910303407 A CN200910303407 A CN 200910303407A CN 101570819 A CN101570819 A CN 101570819A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000005520 cutting process Methods 0.000 title abstract description 7
- 238000010791 quenching Methods 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000000171 quenching effect Effects 0.000 claims abstract description 39
- 239000000498 cooling water Substances 0.000 claims abstract description 25
- 238000005496 tempering Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000007669 thermal treatment Methods 0.000 claims description 36
- 238000005507 spraying Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention relates to a heating processing technology of a wear-resistant cutting board, in which a shaped wear-resistant cutting board workpiece is preheated, heated under high temperature, and then is subjected to high-strength quenching and tempering. The technology comprises the following steps: A. preheating: the preheating temperature is 450-550 DEG C, and the preheating time is 0.5-1.125min/mm; B. high temperature heating: the temperature is 870-890 DEG C, and the holding time is 0.5-1.125min/mm; C. high-strength quenching: whole spray water time of high-strength quenching is 70-700 seconds, and time in intensified spray is 15-20 seconds; D. tempering: low temperature tempering is carried out, followed by air cooling to room temperature; high pressure cooling water used in the invention is recyclable. The invention has the advantages of making full use of reasonable heating processing technology under the premise of ensuring fine property of the wear-resistant cutting board, improving production efficiency and saving energy consumption, thus lowering production cost of the wear-resistant cutting board.
Description
Technical field:
The present invention relates to a kind of thermal treatment process, particularly a kind of thermal treatment process that is used for the wear-resisting knife plate of engineering machinery, mining machinery.
Background technology:
At present, the wear-resisting knife plate general requirement that is used for engineering machinery, mining machinery etc. has higher intensity and enough toughness, wear resistancies, thermal treatment then is the effective ways that improve mechanical propertys such as its intensity, toughness and wear resistance, and wear-resisting generally speaking knife plate after heat treatment its hardness should satisfy requirement in the subordinate list seven.And in the thermal treatment process of existing wear-resisting knife plate, the phenomenon that the ubiquity energy dissipation is big, production efficiency is lower, as publication number be: in the Chinese patent application of CN 1544682A " material, thermal treatment and the weldprocedure of shovel loader integral type wear-resistant cutting edge ", though it provides the shovel loader cutting edge of a kind of intensity height, good toughness, but the quenching temperature of its thermal treatment process is higher, soaking time is also longer, has not only wasted the energy, and has reduced production efficiency; In addition, though this patent application employing is press quenching, the homogeneity of its quenching is not fine.
Summary of the invention:
The technical problem to be solved in the present invention is: provide a kind of thermal treatment process of wear-resisting knife plate, to solve the problem that energy dissipation is big, production efficiency is low that existing wear-resisting knife plate thermal treatment process exists.
The further technical problem that the present invention will solve is: improve the homogeneity that this wear-resisting knife plate quenches.
The technical scheme that solves the problems of the technologies described above is: a kind of thermal treatment process of wear-resisting knife plate, this technology are with after the wear-resisting knife plate workpiece process preheating after shaping, the heat, pass through high-strength quenching, temper more successively, and its key step is as follows:
A, preheating: the wear-resisting knife plate workpiece after will shaping is delivered in the preheating zone of heating system and carries out preheating, and its preheating temperature is 450～550 ℃, and be 0.5～1.125min/mm warm up time;
B, heat: will the wear-resisting knife plate workpiece after preheating deliver in the high-temperature zone of heating system and carry out heat, its temperature is 870～890 ℃, and soaking time is 0.5～1.125min/mm, adds shielding gas simultaneously;
C, high-strength quenching: the wear-resisting knife plate workpiece after will heating is delivered to the pressure that has high-strength quench head and quenches in the machine, and adopt high-pressure cooling water refrigerative mode to carry out high-strength quenching, the full water spraying time of high-strength quenching is 70～100 seconds, and spraying the time in stage by force is 15～20 seconds;
D, tempering: wear-resisting knife plate workpiece is delivered to the tempering system carry out the low-temperaturetempering processing, tempering temperature is 180～210 ℃, and air cooling is to room temperature then.
Further technical scheme of the present invention is: used high-pressure cooling water is the high-pressure cooling water of reusable edible in described step C, the high-strength quenching, and this high-pressure cooling water is mainly handled through following operation:
1., cooling: quenched water coolant is cooled off through water-cooling system;
2., supercharging: cooled water coolant delivered to carry out supercharging in the supercharging circulating water system;
3., compile: the water coolant after the supercharging is pooled in the high pressure water bag, evenly is transported to again in the high-strength quench head of pressing the machine of quenching.
Another technical scheme of the present invention is: described high-strength quench head mainly is made of base plate, supporting plate, high-pressure water pipe, is evenly distributed with many jet holes on the high-pressure water pipe tube wall, and fuses by supporting plate and base plate.
Owing to adopted technique scheme, the thermal treatment process of the present invention's wear-resisting knife plate is compared with the thermal treatment process of existing wear-resisting knife plate, has following beneficial effect:
The thermal treatment process of the present invention's wear-resisting knife plate is more reasonable, can not only guarantee that wear-resisting steel plate has higher intensity and enough toughness, wear resistancies, and can also reach following effect:
1, improve production efficiency, saved energy consumption:
(1), because in the thermal treatment process of the present invention's wear-resisting knife plate, before the heat step, increased the step of one preheating, its preheating temperature is 450～550 ℃, be 0.5～1.125min/mm warm up time, it can make the more effective intensification of wear-resisting knife plate workpiece, and the wear-resisting knife plate workpiece of polylith is heated up simultaneously, can improve treatment production efficient about 30%;
(2), the heat temperature of the thermal treatment process of the present invention's wear-resisting knife plate is 870～890 °, with the thermal treatment process of existing wear-resisting knife plate by contrast can energy efficient about 10%; And the present invention is after heat, and soaking time is 0.5～1.125min/mm, compares the present invention's energy energy efficient about 20% with the heat soaking time of existing wear-resisting knife plate;
(3), in the high-strength quenching process of the present invention's wear-resisting knife plate, full water spraying time is 70～100 seconds, compares with the quenching water spray time of existing wear-resisting knife plate, approximately can energy efficient 2%.
(4), in addition, used high-pressure cooling water is the high-pressure cooling water of reusable edible in the thermal treatment process step C of the present invention's wear-resisting knife plate, high-strength quenching, thereby has also further saved energy consumption.
2, thermal effectiveness is relatively good:
(1), quenching is more even:
Owing to adopted the pressure that the has high-strength quench head machine of quenching in the quench systems of the present invention, this high-strength quench head is by base plate, supporting plate, high-pressure water pipe constitutes, be evenly distributed with a plurality of jet holes on the high-pressure water pipe tube wall, and fuse by supporting plate and base plate, therefore, high-pressure cooling water in the high-pressure water pipe can be the center of circle with the center of high-pressure water pipe, a plurality of jet holes on the high-pressure water pipe tube wall penetrate, it distributes very evenly, and be ejected into workpiece surface equably, thereby workpiece surface is cooled off uniformly, avoided workpiece surface to form the phenomenon in soft district easily.
In addition, because high-pressure cooling water of the present invention is the high-pressure cooling water of reusable edible, it be successively through overcooling, supercharging, operation such as compile and handle, wherein, all be pooled in the high pressure water bag after this high-pressure cooling water process supercharging circulating water system supercharging, evenly be transported to again in the high-strength quench head of pressing the machine of quenching, make the pressure of this high-pressure cooling water more even, thereby can further improve the homogeneity of quenching.
(2), good cooling results: because high-strength quench head is directly outwards to spray water from high-pressure water pipe, it is more even, attractive in appearance that its water jets under high pressure that ejects is distributed, and the water jets under high pressure between adjacent two shower nozzles cross one another phenomenon can not occur yet, thereby guaranteed the pressure of water column, its cooling performance is relatively good.
In sum, the present invention makes full use of rational heat treatment technology under the prerequisite of the superperformance that guarantees wear-resisting knife plate, enhance productivity, and energy efficient, thus reduce the production cost of wear-resisting knife plate greatly.
Below, the technical characterictic to the thermal treatment process of the present invention's wear-resisting knife plate is further described in conjunction with the accompanying drawings and embodiments.
Description of drawings:
Fig. 1: the FB(flow block) of the thermal treatment process of the present invention's wear-resisting knife plate;
Fig. 2～Fig. 3: the structural representation of high-strength quench head of the present invention,
The right view of Fig. 2: Fig. 3 (after removing plug), Fig. 3: front view;
Fig. 4～Fig. 5: the structural representation when the high-strength quench head of the utility model is worked,
The right view of Fig. 4: Fig. 5 (after removing plug), Fig. 5: front view;
Among the figure: 1-base plate, 2-supporting plate, 3-high-pressure water pipe, 31-jet hole, 32-cover plate, 33-water inlet pipe, 34-plug, the 35-raceway that floats, Y-pressure head, the wear-resisting knife plate workpiece of G-, S-water jets under high pressure.
Embodiment:
Embodiment one:
A kind of thickness is the thermal treatment process of the wear-resisting knife plate of 40mm, and this technology is with after the wear-resisting knife plate workpiece process preheating after shaping, the heat, passes through high-strength quenching, temper more successively, and its key step is as follows:
A, preheating: the wear-resisting knife plate workpiece after will shaping is delivered in the preheating zone of heating system and carries out preheating, and its preheating temperature is 550 ℃, and be 1.125min/mm warm up time, promptly is 45 minutes;
B, heat: will the wear-resisting knife plate workpiece after preheating deliver in the high-temperature zone of heating system and carry out heat, its temperature is 890 ℃, and insulation 1.125min/mm, promptly is 45 minutes, adds protection gas by Nitrogen plant simultaneously and grabs nitrogen;
C, high-strength quenching: the wear-resisting knife plate workpiece after will heating is delivered to the pressure that has high-strength quench head and quenches in the machine, and adopts high-pressure cooling water refrigerative mode to carry out high-strength quenching, and the full water spraying time of high-strength quenching is 100 seconds, and spraying the time in stage by force is 20 seconds;
D, tempering: wear-resisting knife plate workpiece is delivered to the tempering system carry out the low-temperaturetempering processing, tempering temperature is 210 ℃, and soaking time is 120 minutes, and air cooling is to room temperature then.
Used high-pressure cooling water is the high-pressure cooling water of reusable edible in above-mentioned step C, the high-strength quenching, and this high-pressure cooling water is handled through following operation:
1., cooling: quenched water coolant is cooled off through water-cooling system;
2., supercharging: cooled water coolant delivered to carry out supercharging in the supercharging circulating water system;
3., compile: the water coolant after the supercharging is pooled in the high pressure water bag, evenly is transported to again in the high-strength quench head of pressing the machine of quenching.
Described high-strength quench head is installed in presses on the machine of quenching, and it is made of base plate 1, supporting plate 2, high-pressure water pipe 3 and (referring to Fig. 2～Fig. 3), be evenly distributed with a plurality of jet holes 31 on high-pressure water pipe 3 tube walls, and fuses by supporting plate 2 and base plate 1; Described high-pressure water pipe 3 two ends are separately installed with cover plate 32, and at one end the end is provided with plug 34, is provided with water inlet pipe 33 at the middle part; When this high-strength quench head is worked, as Fig. 4～shown in Figure 5, with 32 high-strength quench heads, be divided into two groups corresponding each 16 up and down, compress the upper and lower surface that is installed in wear-resisting knife plate workpiece G by pressure head Y respectively, wherein, the plug that is positioned at following group of high-strength quench head of wear-resisting knife plate workpiece G below is arranged on the below of high-pressure water pipe one end end, and purpose is to avoid floating interfering when raceway 35 descends; From water inlet pipe 33 input high pressure waters, water jets under high pressure S can evenly spray from the jet hole on the high-pressure water pipe tube wall 31, thereby uniform hardening is carried out on the surface of wear-resisting knife plate workpiece G.
Quench machine, tempering system, water-cooling system, supercharging circulating water system, high pressure water bags etc. of above-mentioned heating system, quench systems, pressure all are to adopt common structure well known in the art, no longer its structure are given unnecessary details one by one here.And the control of the action of said system and processing parameter is all finished by the central computer Controlling System.
Embodiment two:
A kind of thickness is the thermal treatment process of the wear-resisting knife plate of 35mm, the key step of this technology and the high-pressure cooling water that is adopted, high-strength quench head are all with embodiment one, just the processing parameter in its key step is different, and the key step of this wear-resisting knife plate is as follows:
A, preheating: the wear-resisting knife plate workpiece after will shaping is delivered in the preheating zone of heating system and carries out preheating, and its preheating temperature is 500 ℃, and be 1.086min/mm warm up time, promptly is 38 minutes;
B, heat: will the wear-resisting knife plate workpiece after preheating deliver in the high-temperature zone of heating system and carry out heat, its temperature is 880 ℃, and insulation 1.086min/mm, promptly is 38 minutes, adds protection gas by Nitrogen plant simultaneously and grabs nitrogen;
C, high-strength quenching: the pressure that the wear-resisting knife plate workpiece after will heating is delivered to quench systems is quenched in the machine, and adopts high-pressure cooling water refrigerative mode to carry out high-strength quenching, and the full water spraying time of high-strength quenching is 95 seconds, and spraying the time in stage by force is 20 seconds;
D, tempering: wear-resisting knife plate workpiece is delivered to the tempering system carry out the low-temperaturetempering processing, tempering temperature is 200 ℃, and soaking time is 110 minutes, and air cooling is to room temperature then.
Embodiment three:
A kind of thickness is the thermal treatment process of the wear-resisting knife plate of 30mm, the key step of this technology and the high-pressure cooling water that is adopted, high-strength quench head are all with embodiment one, just the processing parameter in its key step is different, and the key step of this wear-resisting knife plate is as follows:
A, preheating: the wear-resisting knife plate workpiece after will shaping is delivered in the preheating zone of heating system and carries out preheating, and its preheating temperature is 450 ℃, and be 1min/mm warm up time, promptly is 30 minutes;
B, heat: will the wear-resisting knife plate workpiece after preheating deliver in the high-temperature zone of heating system and carry out heat, its temperature is 870 ℃, and insulation 1min/mm, promptly is 30 minutes, adds protection gas by Nitrogen plant simultaneously and grabs nitrogen;
C, high-strength quenching: the pressure that the wear-resisting knife plate workpiece after will heating is delivered to quench systems is quenched in the machine, and adopts high-pressure cooling water refrigerative mode to carry out high-strength quenching, and the water spraying time of high-strength quenching is 90 seconds, and spraying the time in stage by force is 18 seconds;
D, tempering: wear-resisting knife plate workpiece is delivered to the tempering system carry out the low-temperaturetempering processing, tempering temperature is 190 ℃, and soaking time is 100 minutes, and air cooling is to room temperature then.
Embodiment four～embodiment five:
A kind of thickness is respectively 25, the thermal treatment process of the wear-resisting knife plate of 20mm, the key step of this technology and the high-pressure cooling water that is adopted, high-strength quench head are all with embodiment one, just the processing parameter in its key step changes to some extent, and its concrete variation range sees attached list one.
Thermal treatment process according to embodiment one～embodiment five described wear-resisting knife plates is heat-treated three wear-resisting knife plate workpiece respectively, and wear-resisting knife plate workpiece after heat treatment carried out impact ductility test continuously, its test-results is referring to subordinate list two～subordinate list six, this shows that the hardness that the hardness of this wear-resisting knife plate workpiece meets the wear-resisting knife plate after the thermal treatment requires (referring to subordinate list seven).
As a kind of conversion of embodiment one to embodiment five, described preheating temperature, warm up time can increase or reduce according to actual needs, and the value of preheating temperature is generally speaking: 450～550 ℃, the value of warm up time is: 0.5～1.125min/mm.
Another conversion as embodiment one to embodiment five, described heat temperature, soaking time also can increase or reduce according to actual needs, the temperature of heat is generally speaking: 870～890 ℃, soaking time is: 0.5～1.125min/mm.
As another conversion of embodiment one to embodiment five, the full water spraying time of described high-strength quenching also can increase or reduce, and is generally 70～100 seconds.
As another conversion of embodiment one to embodiment five, described step D, tempering also can be handled according to the conventional tempering process of existing wear-resisting knife plate.
As another conversion of embodiment one to embodiment five, described shielding gas also can be other rare gas element that adds by other machine.
Subordinate list one: the main technologic parameters table look-up of the thermal treatment process of wear-resisting knife plate
Subordinate list two: thickness is the test-results after the wear-resisting knife plate of 40mm is heat-treated by embodiment one described thermal treatment process
| Specification | Surface hardness (HRC) | Apart from surperficial 10mm place's hardness (HRC) | Centre hardness (HRC) | Yield strength σ s (Mp) | Tensile strength sigma b (Mp) | Elongation δ 5 (%) | Shrinking percentage ψ (%) | Impelling strength under the normal temperature (J) |
| |
46 | 42 | 38 | 1320 | 1500 | 10 | 42 | 37 |
| |
47 | 42 | 40 | 1310 | 1450 | 13 | 45 | 40 |
| |
46 | 42 | 39 | 1320 | 1550 | 10 | 42 | 41 |
Subordinate list three: thickness is the test-results after the wear-resisting knife plate of 35mm is heat-treated by embodiment two described thermal treatment process
| Specification | Surface hardness (HRC) | Apart from surperficial 10mm place's hardness (HRC) | Centre hardness (HRC) | Yield strength σ s (Mp) | Tensile strength sigma b (Mp) | Elongation δ 5 (%) | Shrinking percentage ψ (%) | Impelling strength under the normal temperature (J) |
| |
47 | 45 | 40 | 1350 | 1550 | 12 | 40 | 40 |
| |
46 | 44 | 40 | 1310 | 1350 | 13 | 45 | 42 |
| |
46 | 42 | 39 | 1330 | 1450 | 10 | 40 | 42 |
Subordinate list four: thickness is the test-results after the wear-resisting knife plate of 30mm is heat-treated by embodiment three described thermal treatment process
| Specification | Surface hardness (HRC) | Apart from surperficial 10mm place's hardness (HRC) | Centre hardness (HRC) | Yield strength σ s (Mp) | Tensile strength sigma b (Mp) | Elongation δ 5 (%) | Shrinking percentage ψ (%) | Impelling strength under the normal temperature (J) |
| |
46 | 40 | 35 | 1300 | 1550 | 11 | 43 | 41 |
| |
47 | 40 | 40 | 1310 | 1450 | 12 | 44 | 41 |
| |
46 | 40 | 38 | 1300 | 1450 | 12 | 44 | 38 |
Subordinate list five: thickness is the test-results after the wear-resisting knife plate of 25mm is heat-treated by embodiment four described thermal treatment process
| Specification | Surface hardness (HRC) | Apart from surperficial 10mm place's hardness (HRC) | Centre hardness (HRC) | Yield strength σ s (Mp) | Tensile strength sigma b (Mp) | Elongation δ 5 (%) | Shrinking percentage ψ (%) | Impelling strength under the normal temperature (J) |
| |
46 | 44 | 33 | 1340 | 1550 | 12 | 40 | 38 |
| |
46 | 43 | 42 | 1280 | 1400 | 10 | 41 | 33 |
| |
46 | 45 | 43 | 1300 | 1500 | 9 | 40 | 40 |
Subordinate list six: thickness is the test-results after the wear-resisting knife plate of 20mm is heat-treated by embodiment five described thermal treatment process
| Specification | Surface hardness (HRC) | Apart from surperficial 10mm place's hardness (HRC) | Centre hardness (HRC) | Yield strength σ s (Mp) | Tensile strength sigma b (Mp) | Elongation δ 5 (%) | Shrinking percentage ψ (%) | Impelling strength under the normal temperature (J) |
| |
44 | 42 | 40 | 1330 | 1400 | 8 | 42 | 37 |
| |
44 | 43 | 40 | 1330 | 1400 | 10 | 43 | 38 |
| |
45 | 43 | 40 | 1350 | 1450 | 11 | 43 | 38 |
Subordinate list seven: the hardness requirement of the wear-resisting knife plate after the thermal treatment
Claims (4)
1. the thermal treatment process of a wear-resisting knife plate is characterized in that: this technology be with the wear-resisting knife plate workpiece after shaping through preheating, heat after, pass through high-strength quenching, temper more successively, its key step is as follows:
A, preheating: the wear-resisting knife plate workpiece after will shaping is delivered in the preheating zone of heating system and carries out preheating, and its preheating temperature is 450～550 ℃, and be 0.5～1.125min/mm warm up time;
B, heat: will the wear-resisting knife plate workpiece after preheating deliver in the high-temperature zone of heating system and carry out heat, its temperature is 870～890 ℃, and soaking time is 0.5～1.125min/mm, adds shielding gas simultaneously;
C, high-strength quenching: the wear-resisting knife plate workpiece after will heating is delivered to the pressure that has high-strength quench head and quenches in the machine, and adopt high-pressure cooling water refrigerative mode to carry out high-strength quenching, the full water spraying time of high-strength quenching is 70～100 seconds, and spraying the time in stage by force is 15～20 seconds;
D, tempering: wear-resisting knife plate workpiece is delivered to the tempering system carry out the low-temperaturetempering processing, tempering temperature is 180～210 ℃, and air cooling is to room temperature then.
2. the thermal treatment process of wear-resisting knife plate according to claim 1, it is characterized in that: used high-pressure cooling water is the high-pressure cooling water of reusable edible in described step C, the high-strength quenching, this high-pressure cooling water is mainly handled through following operation:
1., cooling: quenched water coolant is cooled off through water-cooling system;
2., supercharging: cooled water coolant delivered to carry out supercharging in the supercharging circulating water system;
3., compile: the water coolant after the supercharging is pooled in the high pressure water bag, evenly is transported to again in the high-strength quench head of pressing the machine of quenching.
3. the thermal treatment process of wear-resisting knife plate according to claim 1 and 2, it is characterized in that: described high-strength quench head mainly is made of base plate, supporting plate, high-pressure water pipe, be evenly distributed with many jet holes on the high-pressure water pipe tube wall, and fuse by supporting plate and base plate.
4. the thermal treatment process of wear-resisting knife plate according to claim 3, it is characterized in that: described high-pressure water pipe two ends are separately installed with cover plate, and the middle part is provided with water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103034070A CN101570819B (en) | 2009-06-18 | 2009-06-18 | Heating processing technology for wear-resistant cutting board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103034070A CN101570819B (en) | 2009-06-18 | 2009-06-18 | Heating processing technology for wear-resistant cutting board |
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| CN101570819A true CN101570819A (en) | 2009-11-04 |
| CN101570819B CN101570819B (en) | 2010-12-08 |
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| CN102277478A (en) * | 2010-06-13 | 2011-12-14 | 陈登云 | Technology for heating processing C40 corrosion-resistant anti-wear material |
| CN102303121A (en) * | 2011-06-17 | 2012-01-04 | 四川川投峨眉铁合金（集团）有限责任公司 | Efficient and low-consumption method for machining and crushing ferroalloy |
| CN102732699A (en) * | 2012-07-16 | 2012-10-17 | 鑫光热处理工业(昆山)有限公司 | Heat treatment process for powder part |
| CN102839264A (en) * | 2012-09-13 | 2012-12-26 | 莱芜钢铁集团有限公司 | High-temperature water cooling device and method |
| CN103014303A (en) * | 2012-12-13 | 2013-04-03 | 内蒙古北方重工业集团有限公司 | Production method of thin and long thin-plate type part |
| CN104962700A (en) * | 2015-06-17 | 2015-10-07 | 柳州金特新型耐磨材料股份有限公司 | Wear-resistant material quenching process |
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| CN106480276A (en) * | 2016-09-29 | 2017-03-08 | 河南平高电气股份有限公司 | A kind of Controlled Atmosphere Protect heat treatment method |
| CN113481352A (en) * | 2021-05-28 | 2021-10-08 | 江苏万成机械制造有限公司 | Quenching heat treatment process for wear-resisting plate |
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| CN1185364A (en) * | 1996-12-17 | 1998-06-24 | 王书翰 | High-hardness wear-resisting cutter |
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2009
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| CN102277478A (en) * | 2010-06-13 | 2011-12-14 | 陈登云 | Technology for heating processing C40 corrosion-resistant anti-wear material |
| CN102303121A (en) * | 2011-06-17 | 2012-01-04 | 四川川投峨眉铁合金（集团）有限责任公司 | Efficient and low-consumption method for machining and crushing ferroalloy |
| CN102732699A (en) * | 2012-07-16 | 2012-10-17 | 鑫光热处理工业(昆山)有限公司 | Heat treatment process for powder part |
| CN102839264A (en) * | 2012-09-13 | 2012-12-26 | 莱芜钢铁集团有限公司 | High-temperature water cooling device and method |
| CN103014303A (en) * | 2012-12-13 | 2013-04-03 | 内蒙古北方重工业集团有限公司 | Production method of thin and long thin-plate type part |
| WO2015155136A1 (en) * | 2014-04-07 | 2015-10-15 | Voestalpine Stahl Gmbh | Device and method for cooling steel sheet blanks |
| CN104962700A (en) * | 2015-06-17 | 2015-10-07 | 柳州金特新型耐磨材料股份有限公司 | Wear-resistant material quenching process |
| CN105177228A (en) * | 2015-07-23 | 2015-12-23 | 柳州市众力金铭热处理有限公司 | 40Cr steel rod quenching method for quartz sand rod mill |
| CN105648168A (en) * | 2016-03-11 | 2016-06-08 | 柳州市久日工程机械有限公司 | Pressure quenching cooling device |
| CN105648167A (en) * | 2016-03-11 | 2016-06-08 | 柳州市久日工程机械有限公司 | Quenching shower nozzle |
| CN106480276A (en) * | 2016-09-29 | 2017-03-08 | 河南平高电气股份有限公司 | A kind of Controlled Atmosphere Protect heat treatment method |
| CN113481352A (en) * | 2021-05-28 | 2021-10-08 | 江苏万成机械制造有限公司 | Quenching heat treatment process for wear-resisting plate |
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| CN101570819B (en) | 2010-12-08 |
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