CN103146902A - Automatic production line for saw blade heat treatment - Google Patents
Automatic production line for saw blade heat treatment Download PDFInfo
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- CN103146902A CN103146902A CN2012105544031A CN201210554403A CN103146902A CN 103146902 A CN103146902 A CN 103146902A CN 2012105544031 A CN2012105544031 A CN 2012105544031A CN 201210554403 A CN201210554403 A CN 201210554403A CN 103146902 A CN103146902 A CN 103146902A
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Abstract
The invention discloses an automatic production line for saw blade heat treatment, and belongs to the technical field of work piece heat treatment. The automatic production line for the saw blade heat treatment is characterized by comprising a feed mechanism, a feeding tray stepping advancing mechanism, a heat preserving furnace, a carbon-nitrogen furnace, a quenching mechanism, a cleaning machine, a tempering furnace and feeding tray conveying mechanisms, wherein the feed mechanism, the feeding tray stepping advancing mechanism, the heat preserving furnace, the carbon-nitrogen furnace, the quenching mechanism, the cleaning machine, the tempering furnace are sequentially arranged according to a manufacturing process order, and the feeding tray conveying mechanisms are arranged between each two adjacent devices. The feeding tray conveying mechanisms comprise a transition cylinder, a carbon-nitrogen furnace discharging advancing device, a quenching discharging advancing device, a tempering furnace feeding advancing device and a tempering furnace discharging advancing device, wherein the transition cylinder is arranged between the heat preserving furnace and the carbon-nitrogen furnace, the carbon-nitrogen furnace discharging advancing device is arranged on one side of the carbon-nitrogen furnace, the quenching discharging advancing device is arranged between the quenching mechanism and the cleaning machine, the tempering furnace feeding advancing device is arranged between the cleaning machine and the tempering furnace, and the tempering furnace discharging advancing device is arranged at an outlet of the tempering furnace. The automatic production line for the saw blade heat treatment has the advantages of improving production efficiency and energy use rates of the devices, ensuring heat treatment quality of saw blades due to continuous production, achieving automation operation of the whole production line and being small in number of employed workers and good in labor environment.
Description
Technical field
The present invention relates to the saw blade equipment for Heating Processing, relate in particular to a kind of saw blade thermal treatment automatic production line.
Background technology
Saw blade is requisite cutting material in mechanical workout, and the thermal treatment process of its quality and saw blade is closely related, substantially depends on surface tempering treatment effect to saw blade as hardness, intensity, toughness and the wear resistance of saw blade.The mode of old technology, old technique, discontinuous production is adopted in the at present thermal treatment of saw blade industry hand hack saw blade substantially, as quenching process, generally to adopt well formula Salt Bath for Heat mode, adopt the coal heating not only seriously polluted, environmental protection is not up to standard, waste energy, production cost is high, and unstable product quality.Consume two kilograms of salt bath solutions with every thousand saw blades, whole nation saw blade annual production 10000000 (thousand) meter, more than 20,000 ton of chemical fertilizer of annual consumption, environmental pollution is not up to standard, the flue dust of discharging, waste gas, sewage also are difficult to reach discharging standards through the purifying air sewage disposal, bring serious threat for the existence of enterprise, invest huge environmental protection equipment also ineffective; Carburization step, generally adopt solid carburizing at present for another example, and saw blade is placed in case hardening box, adopts resistance furnace heating insulation again, and not only working (machining) efficiency is low, and quality can not guarantee fully.Generally speaking, the saw blade heat treatment step of prior art remains in following deficiency: the one, and each operation graded operation can not be produced continuously, and not only efficient is low, and wastes energy, and produces larger pollution; The 2nd, can not work continuously, in carburizing or nitrogen operation, quenching operation and tempering operation, can not form stable processing atmosphere, thereby easily cause various product defectses, as cause the saw blade surface decarburization because heat-up time is long, cause saw blade hardness unequal because carburizing is uneven, these all can make the result of use of saw blade and life-span greatly reduce; The 3rd, personnel's occupancy is many, and labour intensity is large, and operator belong to high-temperature service near thermal source, particularly summer, and safety coefficient is low, and it is also unavoidable causing scald, therefore makes operator's health also be subject to very large impact.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of saw blade thermal treatment automatic production line is provided, the long-standing production efficiency of single machine production technique traditional in the saw blade heat treatment process is low, quality is unstable, the problem that working strength is large to solve.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of saw blade thermal treatment automatic production line, it is characterized in that, comprise feed mechanism, charging tray stepping propulsive mechanism, holding furnace, carbon nitrogen stove, quenching mechanism, cleaning machine, the tempering stove that sets gradually by the production technique order and be located at charging tray transfer mechanism between above-mentioned each equipment;
Described feed mechanism is located at described holding furnace one side, and charging tray is sent into described holding furnace;
Described charging tray stepping propulsive mechanism is located at the front portion of described holding furnace along the charging tray direct of travel, move ahead to promote charging tray stepping in described holding furnace and carbon nitrogen stove;
Described holding furnace preheats workpiece;
Described carbon nitrogen stove carries out carburizing and nitriding processing to workpiece;
Described quenching mechanism carries out preheating, heating, insulation and cooling process to the workpiece after over carburizing and nitriding, namely workpiece is quenched;
Described cleaning machine is to embathing and spray through the workpiece after quenching;
Described tempering stove, to the workpiece after quenching heat, insulation and cooling process;
Described charging tray transfer mechanism comprises transitional cylinder, the carbon nitrogen furnace discharge puopulsion unit of being located at described carbon nitrogen stove one side be located between described holding furnace and carbon nitrogen stove, is located at the quenching discharging puopulsion unit between described quenching mechanism and described cleaning machine, the tempering stove discharging puopulsion unit of being located at the tempering stove feeding propelling device between described cleaning machine and described tempering stove and being located at described tempering stove outlet.
The invention has the beneficial effects as follows: produce due to heat treated each operation of saw blade is connected continuously in order, the first has not only improved the utilization ratio of production efficiency and each equipment, and owing to not needing all will the heat up cooling operation of every stove product, thereby improved each equipment energy utilization rate; It two is owing to adopting continuous stepping feeding feeding, making the working order of each operation and furnace atmosphere continual and steady, thereby guaranteed heat treatment environment and the atmosphere of saw blade, and then guaranteed thermal treatment quality; It three is that whole line is realized automated job, it is artificial as long as responsible charging tray picks and places on lifting table, and monitoring electrical control system, all the other are automatically to complete, personnel's occupancy is few, production line of the present invention is saved manpower 1/2nd than the production system of prior art, and has greatly improved work situation, has reduced labour intensity.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described feed mechanism comprises successively the lifting table that connects, vertically loads and unloads material roller platform, holding furnace cross-feed puopulsion unit, holding furnace longitudinal feeding puopulsion unit.
Adopt the beneficial effect of above-mentioned further scheme to be, this feed mechanism, simple in structure, reliable operation, compact in design has reduced the occupation of land space.
Further, described puopulsion unit is electronic or air-leg.
Adopt the beneficial effect of above-mentioned further scheme to be, adopt its stable action of transfer bar mechanism, relatively be fit to the low-frequency propelling action in this place.
Further, the entrance and exit of described holding furnace, carbon nitrogen stove, cleaning machine and tempering stove is respectively equipped with the hermatic door that liftable opens and closes.
Adopt the beneficial effect of above-mentioned further scheme to be, adopt hermatic door can guarantee described holding furnace, carbon nitrogen stove, cleaning machine and tempering stove independently work atmosphere and condition separately.Hermatic door is only opened when charging tray passes in and out.
Further, the outlet of described quenching mechanism and tempering stove also is provided with cold blast engine.
Advance to adopt the beneficial effect of above-mentioned further scheme to be, can according to the workpiece needs, carry out air-cooled processing to workpiece.
Further, the end of described tempering stove discharging puopulsion unit is connected with described lifting table, makes material loading and discharging charging tray share lifting table, and makes whole production line form the annular layout that closed loop is arranged.
Adopt the beneficial effect of above-mentioned further scheme to be, this set not only makes lifting table carry out the material loading operation to charging tray, and can utilize lifting table to carry out discharge operation to the charging tray from tempering stove output, make simultaneously whole line layout form revolution, save the space, workshop, reduced operator's activity monitoring length.
Further, described carbon nitrogen stove comprises body of heater, be provided with successively cup, nitriding chamber, carburizing chamber and rear chamber in described body of heater, described cup is connected with described transitional cylinder by hermatic door, also be provided with heat insulation intermediate door between described cup and nitriding chamber, described rear chamber is connected with described quenching mechanism by hermatic door, also is provided with electric heater unit and atmosphere recirculation blower on described body of heater, and the outside of described carbon nitrogen stove also is provided with air feed equipment.
Adopt the beneficial effect of above-mentioned further scheme to be, by cup and rear chamber are set, make charging tray when turnover carbon nitrogen stove, a cushioning pocket be arranged, guaranteed that effectively the atmosphere of carburizing chamber and nitriding chamber is stable, thereby guaranteed process quality.
Further, the cup of described carbon nitrogen stove also is provided with portfire, during current chamber opening, light the cup expellant gas by this portfire, overflow to avoid these inflammable gass, cause potential safety hazard, the entrance of the entrance of described carbon nitrogen stove and outlet top, tempering stove and outlet top also are provided with the gas sampling discharger.
Adopt the beneficial effect of above-mentioned further scheme to be, by the gas sampling discharger is set, the waste gas of operation generation is in time discharged, purified Working environment.
Further, also comprise computer control system, described computer control system comprises electric heating control and step feeding control.
Adopt the beneficial effect of above-mentioned further scheme to be, computer control can make this production line realize automated job fully, and can guarantee temperature controlled accuracy.
Further, described tempering stove comprises heating unit, blower fan circulation device, is provided with 3～12 stations in described tempering stove furnace chamber.
Adopt the beneficial effect of above-mentioned further scheme to be, can the station of tempering stove be set according to production line throughput and processing request, make in stove energy utilization more effective.
Description of drawings
Fig. 1 is the schematic flow sheet of a kind of saw blade thermal treatment of the present invention automatic production line;
Fig. 2 be a kind of saw blade thermal treatment of the present invention automatic production line overlook the layout schematic diagram;
In Fig. 2, the represented list of designations of each label is as follows at Fig. 1:
1, feed mechanism; 1-1, lifting table; 1-2, vertically load and unload the material roller platform; 1-3, holding furnace cross-feed puopulsion unit; 1-4, holding furnace longitudinal feeding puopulsion unit; 2, charging tray stepping propulsive mechanism; 3, holding furnace; 4, transitional cylinder; 5, carbon nitrogen stove; 5-1, cup; 5-2, nitriding chamber; 5-3, carburizing chamber; 5-4, rear chamber; 6, carbon nitrogen furnace discharge puopulsion unit; 7, quenching mechanism; 8, quenching discharging puopulsion unit; 9, cleaning machine; 10, tempering stove feeding propelling device; 11, tempering stove; 12, tempering stove discharging puopulsion unit; 13, hermatic door; 14, charging tray; 15, atmosphere recirculation blower.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example only is used for explaining the present invention, is not be used to limiting scope of the present invention.
Arrive shown in Figure 2 as Fig. 1, a kind of saw blade thermal treatment automatic production line, it is characterized in that, comprise feed mechanism 1, charging tray stepping propulsive mechanism 2, holding furnace 3, carbon nitrogen stove 5, quenching mechanism 7, cleaning machine 9, the tempering stove 11 that sets gradually by the production technique order and be located at charging tray transfer mechanism between above-mentioned each equipment;
Described feed mechanism 1 is located at described holding furnace 3 one sides, and charging tray 14 is sent into described holding furnace 3.
Described charging tray stepping propulsive mechanism 2 is located at the front portion of described holding furnace 3 along charging tray 14 direct of travels, move ahead to promote charging tray 14 stepping in described holding furnace 3 and carbon nitrogen stove 5.
Described holding furnace 3 preheats workpiece; The effect of moist closet is to make the saw blade on charging tray 14 entering the carbon nitrogen stove 5 abundant homogenizing of front temperature, to guarantee the carburizing quality.
Described carbon nitrogen stove 5 carries out carburizing and nitriding processing to workpiece.
Described quenching mechanism 7 carries out preheating, heating, insulation and cooling process to the workpiece after over carburizing and nitriding, namely workpiece is quenched.
Described cleaning machine 9 is to embathing and spray through the workpiece after quenching.
Described tempering stove 11, to the workpiece after quenching heat, insulation and cooling process.
Described charging tray transfer mechanism comprises transitional cylinder 4, the carbon nitrogen furnace discharge puopulsion unit 6 of being located at described carbon nitrogen stove 5 one sides be located between described holding furnace 3 and carbon nitrogen stove 5, is located at the quenching discharging puopulsion unit 8 between described quenching mechanism 7 and described cleaning machine 9, the tempering stove discharging puopulsion unit 12 of being located at the tempering stove feeding propelling device 10 between described cleaning machine 9 and described tempering stove 11 and being located at described tempering stove 11 outlets.
Described feed mechanism 1 comprises successively the lifting table 1-1 that connects, vertically loads and unloads material roller platform 1-2, holding furnace cross-feed puopulsion unit 1-3, holding furnace longitudinal feeding puopulsion unit 1-4.Horizontal finger described here is perpendicular to carbon nitrogen furnace charge dish operation axis direction, and described vertical finger is parallel to carbon nitrogen furnace charge dish operation axis direction.
Described puopulsion unit is electronic or air-leg.
The entrance and exit of described holding furnace 3, carbon nitrogen stove 5, cleaning machine 9 and tempering stove 11 is respectively equipped with the hermatic door 13 that liftable opens and closes.
The outlet of described quenching mechanism 7 and tempering stove 11 also is provided with cold blast engine.
The end of described tempering stove discharging puopulsion unit 12 is connected with described lifting table 1-1, makes material loading and discharging charging tray share lifting table 1-1, and makes whole production line form the annular layout that closed loop is arranged.
Described carbon nitrogen stove 5 comprises body of heater, be provided with successively cup 5-1, nitriding chamber 5-2, carburizing chamber 5-3 and rear chamber 5-4 in described body of heater, described cup 5-1 is connected with described transitional cylinder 4 by hermatic door 13, described rear chamber 5-4 is connected with described quenching mechanism 7 by hermatic door 13, also be provided with electric heater unit and atmosphere recirculation blower 15 on described body of heater, the outside of described carbon nitrogen stove 5 also is provided with air feed equipment.
Separated by a heat insulation intermediate door between described cup 5-1 and nitriding chamber 5-2.
Described cup 5-1 also is provided with portfire, when cup 5-1 opens, is burnt by point by cup 5-1 expellant gas, and is discharged by extraction hood, overflows to avoid these inflammable gass, causes potential safety hazard, and the cup top is provided with explosion-proof equipment, to guarantee safety.
The entrance of the entrance of described carbon nitrogen stove 5 and outlet top, tempering stove 11 and outlet top also are provided with the gas sampling discharger.
Described carbon nitrogen stove 5 respectively is equipped with the vertical centrifugal type fan at the furnace roof corresponding to each chamber, to promote heating and atmosphere homogeneous.Top, rear chamber is provided with explosion-proof equipment, and rear chamber is positioned at the quenching tank top of quenching mechanism 7, and is provided with wallboard and inserts that to prevent that air from entering carbon nitrogen in quenching oil indoor.
The indoor employing nitrogen of described carbon nitrogen, methyl alcohol, propane, ammonia etc. consist of corresponding atmosphere through under meter, and utilize oxygen probe carbon control instrument and variable valve to realize carbon-potential control to carburizing atmosphere.
Production line of the present invention also comprises computer control system, and described computer control system comprises electric heating control and step feeding control.
Described tempering stove 11 comprises heating unit, blower fan circulation device, is provided with 3～12 stations in described tempering stove furnace chamber.
Working process of the present invention is as follows: saw blade is made up in groups hang on charging tray 14, charging tray 14 is placed on lifting table 1-1.Whole line first carries out preheating to each equipment when starting makes it remain to suitable working temperature and state, start feed mechanism 1, charging tray 14 is through before vertically loading and unloading material roller platform 1-2, holding furnace cross-feed device 1-3 are pulled to holding furnace 3, this moment, the holding furnace hermatic door was opened, then by holding furnace longitudinal feeding puopulsion unit 1-4, charging tray 14 was advanced holding furnace 3.
After charging tray 14 enters holding furnace 3, its hermatic door 13 is closed, and after the waste heat that carries out certain hour, utilizes charging tray stepping propulsive mechanism to release holding furnace 3, the inlet seal door interoperation of the exit seal door of holding furnace 3 and carbon nitrogen stove 5 makes charging tray 14 enter carbon carbon nitrogen stove.Can be a stepping period this warm up time.
When next stepping period, feed mechanism 1 repeats aforementioned activities, make next charging tray 14 send into moist closet, so circulation, charging tray 14 in carbon nitrogen stove 5 can advance successively, but when first charging tray arrived the rear chamber 5-4 of carbon nitrogen stove 5, described carbon nitrogen furnace discharge puopulsion unit 6 actions were advanced to charging tray 14 in quenching mechanism 7.Described carbon nitrogen furnace discharge puopulsion unit 6 adopts soft transfer bar mechanism, charging tray 14 is shifted onto on liftable quenching bench in described quenching mechanism 7, under described quenching bench, general who has surrendered's charging tray is put into hardening liquid and is quenched, after the time-delay of quenching finishes, quenching bench turns round out quenching tank, charging tray 14 above quenching tank through a moment drain after, pulled out by the quenching discharging mechanism, and by quenching discharging puopulsion unit 8, charging tray sent in cleaning machine 9.
Charging tray 14 is sent into tempering stove by tempering stove feeding propelling device 10 after cleaning, delivered on the lifting table 1-1 of feed mechanism by tempering stove discharging puopulsion unit 12 through the temper of setting cycle, falls discharging.Whole treating processes finishes.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. saw blade thermal treatment automatic production line, it is characterized in that, comprise feed mechanism, charging tray stepping propulsive mechanism, holding furnace, carbon nitrogen stove, quenching mechanism, cleaning machine, the tempering stove that sets gradually by the production technique order and be located at charging tray transfer mechanism between above-mentioned each equipment;
Described feed mechanism is located at described holding furnace one side, and charging tray is sent into described holding furnace;
Described charging tray stepping propulsive mechanism is located at the front portion of described holding furnace along the charging tray direct of travel, move ahead to promote charging tray stepping in described holding furnace and carbon nitrogen stove;
Described holding furnace preheats workpiece;
Described carbon nitrogen stove carries out carburizing and nitriding processing to workpiece;
Described quenching mechanism carries out preheating, heating, insulation and cooling process to the workpiece after over carburizing and nitriding, namely workpiece is quenched;
Described cleaning machine is to embathing and spray through the workpiece after quenching;
Described tempering stove, to the workpiece after quenching heat, insulation and cooling process;
Described charging tray transfer mechanism comprises transitional cylinder, the carbon nitrogen furnace discharge puopulsion unit of being located at described carbon nitrogen stove one side be located between described holding furnace and carbon nitrogen stove, is located at the quenching discharging puopulsion unit between described quenching mechanism and described cleaning machine, the tempering stove discharging puopulsion unit of being located at the tempering stove feeding propelling device between described cleaning machine and described tempering stove and being located at described tempering stove outlet.
2. saw blade thermal treatment automatic production line according to claim 1, is characterized in that, described feed mechanism comprises successively the lifting table that connects, vertically loads and unloads material roller platform, holding furnace cross-feed puopulsion unit, holding furnace longitudinal feeding puopulsion unit.
3. saw blade thermal treatment automatic production line according to claim 2, is characterized in that, described puopulsion unit is electronic or air-leg.
4. according to claim 1 and 2 or 3 described saw blade thermal treatment automatic production lines, is characterized in that, the entrance and exit of described holding furnace, carbon nitrogen stove, cleaning machine and tempering stove is respectively equipped with the hermatic door that liftable opens and closes.
5. according to claim 1 and 2 or 3 described saw blade thermal treatment automatic production lines, is characterized in that, the outlet of described quenching mechanism and tempering stove also is provided with cold blast engine.
6. according to claim 1 and 2 or 3 described saw blade thermal treatment automatic production lines, is characterized in that, the end of described tempering stove discharging puopulsion unit is connected with described lifting table, makes material loading and discharging charging tray share lifting table.
7. saw blade thermal treatment automatic production line according to claim 6, it is characterized in that, described carbon nitrogen stove comprises body of heater, be provided with successively cup, nitriding chamber, carburizing chamber and rear chamber in described body of heater, described cup is connected with described transitional cylinder by hermatic door, also be provided with heat insulation intermediate door between described cup and nitriding chamber, described rear chamber is connected with described quenching mechanism by hermatic door, also be provided with electric heater unit and atmosphere recirculation blower on described body of heater, the outside of described carbon nitrogen stove also is provided with air feed equipment.
8. saw blade thermal treatment automatic production line according to claim 7, it is characterized in that, the cup of described carbon nitrogen stove also is provided with portfire, during current chamber opening, light the cup expellant gas by this portfire, the entrance of the entrance of described carbon nitrogen stove and outlet top, tempering stove and outlet top also are provided with the gas sampling discharger.
9. saw blade thermal treatment automatic production line according to claim 7, is characterized in that, also comprises computer control system, and described computer control system comprises electric heating control and step feeding control.
10. saw blade thermal treatment automatic production line according to claim 9, is characterized in that, described tempering stove comprises heating unit, blower fan circulation device, is provided with 3～12 stations in described tempering stove furnace chamber.
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| CN201210554403.1A CN103146902B (en) | 2012-12-19 | 2012-12-19 | Automatic production line for saw blade heat treatment |
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| CN201210554403.1A CN103146902B (en) | 2012-12-19 | 2012-12-19 | Automatic production line for saw blade heat treatment |
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| CN105525071A (en) * | 2016-01-30 | 2016-04-27 | 聂玲 | Quenching furnace using waste heat fully |
| CN105525072A (en) * | 2016-01-30 | 2016-04-27 | 聂玲 | Multifunctional heat treatment furnace using waste heat fully |
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| CN105755271A (en) * | 2014-12-19 | 2016-07-13 | 张家港市东航机械有限公司 | Steel wire heating and quenching apparatus |
| CN105755271B (en) * | 2014-12-19 | 2018-04-24 | 张家港市东航机械有限公司 | Steel wire heating quenching unit |
| CN105154655A (en) * | 2015-09-09 | 2015-12-16 | 安徽省宁国市东波紧固件有限公司 | Temperature homogenization heat treatment system |
| CN105525071A (en) * | 2016-01-30 | 2016-04-27 | 聂玲 | Quenching furnace using waste heat fully |
| CN105525072A (en) * | 2016-01-30 | 2016-04-27 | 聂玲 | Multifunctional heat treatment furnace using waste heat fully |
| CN105525071B (en) * | 2016-01-30 | 2020-03-06 | 青岛海德锻造有限公司 | Quenching furnace capable of fully utilizing waste heat |
| CN106048160B (en) * | 2016-08-03 | 2017-12-05 | 天龙科技炉业(无锡)有限公司 | Pusher-tray type salt bath quenching automatic assembly line |
| CN106048160A (en) * | 2016-08-03 | 2016-10-26 | 天龙科技炉业(无锡)有限公司 | Push-plate-type salt-bath quenching automatic production line |
| CN106222604A (en) * | 2016-08-30 | 2016-12-14 | 赫菲斯热处理系统江苏有限公司 | A kind of controlled atmosphere pit carburizing furnace production line and production method thereof |
| CN106148653A (en) * | 2016-08-31 | 2016-11-23 | 成都真火科技有限公司 | A kind of material treatment systems |
| CN109280756A (en) * | 2017-07-20 | 2019-01-29 | 上海贝晖汽车配件有限公司 | A kind of piston pin heat treatment system |
| CN107502716A (en) * | 2017-07-21 | 2017-12-22 | 刘妍 | A kind of continous way isothermal hardening oil cooling special plane production line for carbide-containing ausferrite spheroidal graphite cast iron material |
| CN107385184A (en) * | 2017-07-24 | 2017-11-24 | 四川西南工业炉有限公司 | A kind of hot rolling thermoelastic spring continous way tempering furnace |
| CN107385184B (en) * | 2017-07-24 | 2019-01-01 | 四川西南工业炉有限公司 | A kind of hot rolling thermoelastic spring continous way tempering furnace |
| CN108034794A (en) * | 2018-01-23 | 2018-05-15 | 戴雪儿 | One kind automation quenching apparatus |
| CN109266831A (en) * | 2018-11-26 | 2019-01-25 | 江苏天硕合金材料有限公司 | Heat treatment method is used in a kind of production of saw blade |
| CN113416823A (en) * | 2021-06-25 | 2021-09-21 | 中航工程集成设备有限公司 | Full-automatic large-scale circulating heat treatment production line and heat treatment production method |
| CN113416823B (en) * | 2021-06-25 | 2022-11-01 | 中航工程集成设备有限公司 | Full-automatic large-scale circulating heat treatment production line and heat treatment production method |
| CN113834325A (en) * | 2021-09-18 | 2021-12-24 | 弗兰科希管件系统(常熟)有限公司 | Rotary heating forming device |
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Effective date of registration: 20170615 Address after: 265404 Shandong city of Zhaoyuan province jinlingzhen Gold Industrial Park Patentee after: Yantai golden saw Co., Ltd. Address before: Zhaoyuan City Zhen Walled Village West 264000 Shandong city of Yantai Province Patentee before: Yantai Jinguang Tools Co., Ltd. |
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