CN103088190A - Horizontal double-station continuous roller induction quenching and induction tempering technology - Google Patents
Horizontal double-station continuous roller induction quenching and induction tempering technology Download PDFInfo
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- CN103088190A CN103088190A CN2013100464105A CN201310046410A CN103088190A CN 103088190 A CN103088190 A CN 103088190A CN 2013100464105 A CN2013100464105 A CN 2013100464105A CN 201310046410 A CN201310046410 A CN 201310046410A CN 103088190 A CN103088190 A CN 103088190A
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Abstract
The invention relates to a horizontal double-station continuous roller induction quenching and induction tempering technology. A routine material feeding mechanism is adopted to place a roller on an induction quenching and induction tempering integrated double-station horizontal machine tool working plane to carry out a continuous induction quenching, water spray cooling and induction tempering technology, and a product is sent to a material outlet through a routine discharging mechanism after reaching requirements. The technology is the induction quenching and induction tempering integrated double-station continuous roller heat treatment technology, so the technology overcomes the disadvantages of traditional heat treatment, and reduces the labor intensity, improves the production efficiency and reaches energy saving and environmental protection purposes on the premise of guaranteeing the product quality.
Description
Technical field
The invention belongs to the Field of Heat-treatment of the special part of textile manufacturing machine roller, be specifically related to a kind of Horizontal type double-station continous way roller and respond to the tempering integrated technique of quenching.
Background technology
Roller is one of requisite three junior college's parts (roller, spindle, rings) in textile machinery industry, and effect is mainly by the sth. made by twisting pressure of tooth section, and the yarn in spinning process is drawn, stretches, and its surface quality directly affects the quality of yarn.Its requirement has high rigidity, high-wearing feature, high size shape stability and certain twisting strength.
The roller thermal treatment process that adopts at present is: material loading → horizontal single station induction quenching → blanking barrelling → well formula hotblast stove tempering → cooling → discharging, there is certain delay waiting time between this two procedures, tempering time comprises heating-up time and soaking time, heating-up time increases with batch and extends, production efficiency is lower, technical process is long, and production cost is high, can't adapt to the theory of modern energy-conserving and environment-protective.Along with the update of heat treatment technics, a kind of novel appts that can adapt to current requirement is assented and is given birth to.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of double continous way roller technique of quenching with the tempering one that collects, thereby overcome the shortcoming of prior heat treatment, under the prerequisite that guarantees quality product, reduced labour intensity, enhance productivity, reach the purpose of energy-conserving and environment-protective.
Technical scheme of the present invention: a kind of Horizontal type double-station continous way roller is responded to the tempering integrated technique of quenching, the conventional feed mechanism of this process using is placed in roller on the scope of operation of the Double-station horizontal lathe that collects induction quenching and induction tempering one, carry out continous way induction quenching, the cooling and induction tempering technique of water spray, deliver to discharge port by conventional discharging mechanism after reaching requirement.The technical process that this technique is concrete is: manual nest → self-feeding (two of each chargings) → push rod feeding → parts quenching induction heating (spray quenching interlock) → part tempering induction heating → part discharging → push rod backhaul.Therefore, operator only need part is put on feeding rack, and then by the numerical control of machine tools time variable control, automatic charging is completed continuous quenching, cooling and tempering, delivers to afterwards discharge port, is positioned on discharge rack.
The further preferred technical scheme of the present invention is: be 14～18s induction hardened heat-up time, 880～920 ℃ of induction heating temperatures.
The further preferred technical scheme of the present invention is: 160～180 ℃ of the Heating temperatures of induction tempering, after tempering, piece surface is faint yellow.
The present invention compared with prior art has following beneficial effect:
Technique contrast: the old thermal treatment process of spinning frame roller adopts the single station Induction Hardening Machine in bedroom, this time scrap build will original single station change into quench and the tempering double same lathe operation, production efficiency improves greatly; Contrast other technique, the first tempering of the part that the tempering of quenching is online first quenches part has guaranteed the homogeneity of piece surface hardness.
Effect comparison: old technology adopts single station horizontal quenching machine, the tempering of well formula hotblast stove, there is certain delay waiting time between two procedures, tempering time comprises heating-up time and soaking time, and the heating-up time increases with batch and extends, and production efficiency is lower, the new-type process using Double-station horizontal tempering one of quenching, save residence time of old technology and intensification, soaking time, greatly shortened the production cycle, improved production efficiency; The effect of old-fashioned hotblast stove tempering is mainly to remove quenching stress, and new-type induction tempering has kept the compressive stress state of piece surface, the work-ing life of having improved part when eliminating quenching stress;
Energy-conservation contrast:
The quenching energy saving calculation: (160-120)/160=25% novel process can be saved electric energy 25%.
The tempering energy saving calculation: according to diameter phi 25 relatively, former technique tempering wants integral body to be heated to 150 ℃ and be incubated for some time, and formula is π r2 * 150; Novel process induction tempering surface hardening layer is pressed 3mm, is heated to 180 ℃, and formula is (π r12-π r22) * 180, draws at least and can save the time that electric energy 43.7%(ignores insulation).
Analyzing above data can find out, has greatly reduced the consumption of electric energy, will carry out antirust processing after quenching in old technology, and then tempering, and aqueous rust preventive is NaNO
2The aqueous solution is strong carcinogen.Both relatively novel process is the novel advanced technologies of a kind of not only energy-conservation but also environmental protection.
Description of drawings
Fig. 1 is the simple process figure of technique of the present invention.
1: station 1: station 23: roller charging 4: roller discharging 5: induction quenching coil 6: water spray cooling coil 7: induction tempering coil
Embodiment
Below in conjunction with accompanying drawing, technique of the present invention is described in detail:
a kind of Horizontal type double-station continous way roller is responded to the tempering integrated technique of quenching, the roller of this technique is from roller feed mechanism 3, give station one and station two, promoting part by push rod after accurate positioning is moved to the left, moving to induction quenching coil 5 quenching heating locations heats, after temperature reaches requirement, push rod continues to be advanced into water spray cooling coil 6 in the same direction and carries out cooling water spray operation, completing rear push-rod according to refrigeration standard continues to be advanced into induction tempering coil 7 in the same direction and carries out the tempering operation, reach tempering requirement rear push-rod and continue to be advanced into roller discharging 4 positions in the same direction, transport out the numerical control operation post by discharging mechanism.
The technical requirements that the tempering rear roller of quenching reaches is: depth of hardening zone is 1.2-1.6mm, surface hardness 1) the whole body depressed portions 〉=HRC58,2) guide rod middle part 〉=HRC45, hard surfacing layer tissue: conformance with standard JB-T9204 martensite 3-7 level; Tempering post-hardening layer hardness gradient reduces gradually from the surface to heart section; Diameter run-out≤0.25mm.
Performance Detection after the tempering of quenching of technique of the present invention:
The metallographic verification result:
Part after Q-tempering is carried out the metaloscope analysis, and with hardness method test effective depth of hardening and hardened layer hardness gradient, detected result is as follows:
Table 1 is quenching temperature T=880 ℃, tempering temperature T=160 ℃, and the depressed portions hardened layer hardness gradient table that detects under the processing condition of time t=14s:
Table 1
Table 2 is quenching temperature T=900 ℃, tempering temperature T=160 ℃, and the depressed portions hardened layer hardness gradient table that detects under the processing condition of time t=17s:
Table 2
Can find out from above-mentioned detected result: table 1 depressed portions depth of hardening zone reaches 1.25mm; Table 2 depressed portions depth of hardening zone reaches 1.55mm; The depressed portions martensite level: 5 grades of the tempered martensites quenched, after tempering, piece surface is faint yellow, has all reached the technical requirements of quenching the tempering rear roller.
Table 3 is quenching temperature T=880 ℃, tempering temperature T=160 ℃, and hardened layer hardness gradient table in the middle part of the guide rod that detects under the processing condition of time t=14s:
Table 3
As can be seen from Table 3: guide rod middle part depth of hardening zone has reached 0.95mm, and hardness gradient reduces gradually from the surface to heart section, and roller tempering rear surface is faint yellow, satisfies quench-hardened case requirement after roller thermal treatment.
Spot check of quality:
Table 4 is quenching temperature T=920 ℃, tempering temperature T=160 ℃, and under the processing condition of time t=14s, adopt the Rockwell hardness method to record piece surface hardness, with the bent distortion of special-purpose silk table lateral bending, data such as table 4:
Table 4
As can be seen from Table 4: more than the recessed surface hardness in roller the whole body reached HRC58, guide rod middle part surface hardness all reached processing requirement more than reaching HRC45, and radial beat eccentricity≤0.25mm satisfies later on processing requirement through follow-up alignment.
Claims (5)
1. a Horizontal type double-station continous way roller is responded to the tempering integrated technique of quenching, it is characterized in that: the conventional feed mechanism of this process using is placed in roller on the scope of operation of the Double-station horizontal lathe that collects induction quenching and induction tempering one, carry out continous way induction quenching, the cooling and induction tempering technique of water spray, deliver to discharge port by conventional discharging mechanism after reaching requirement.
2. a kind of Horizontal type double-station continous way roller according to claim 1 is responded to the tempering integrated technique of quenching, and it is characterized in that: be 14～18s described induction hardened heat-up time, 880～920 ℃ of induction heating temperatures.
3. a kind of Horizontal type double-station continous way roller according to claim 1 is responded to the tempering integrated technique of quenching, and it is characterized in that: 160～180 ℃ of the Heating temperatures of described induction tempering, after tempering, piece surface is faint yellow.
4. a kind of Horizontal type double-station continous way roller according to claim 1 is responded to the tempering integrated technique of quenching, and it is characterized in that: roller is after this technique, and more than the recessed surface hardness in roller the whole body reached HRC58, depth of hardening zone reached 1.2-1.6 mm; More than guide rod middle part surface hardness reached HRC45, depth of hardening zone was greater than 0.4mm.
5. a kind of Horizontal type double-station continous way roller induction according to claim 1 tempering integrated technique of quenching is characterized in that: roller after this technique, radial beat eccentricity≤0.25mm; Hard surfacing layer tissue conformance with standard JB-T9204 martensite 3-7 level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310046410.5A CN103088190B (en) | 2013-02-06 | 2013-02-06 | A kind of Horizontal type double-station continous way roller responds to tempering integrated technique of quenching |
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| CN201310046410.5A CN103088190B (en) | 2013-02-06 | 2013-02-06 | A kind of Horizontal type double-station continous way roller responds to tempering integrated technique of quenching |
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| CN103088190B CN103088190B (en) | 2015-10-28 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363693A (en) * | 2001-01-03 | 2002-08-14 | 沈申昆 | Technology and apparatus for thermally treating long rod |
| CN202337806U (en) * | 2011-12-01 | 2012-07-18 | 十堰高周波科工贸有限公司 | Automatic quenching machine tool with double groups of stations |
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- 2013-02-06 CN CN201310046410.5A patent/CN103088190B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363693A (en) * | 2001-01-03 | 2002-08-14 | 沈申昆 | Technology and apparatus for thermally treating long rod |
| CN202337806U (en) * | 2011-12-01 | 2012-07-18 | 十堰高周波科工贸有限公司 | Automatic quenching machine tool with double groups of stations |
Non-Patent Citations (2)
| Title |
|---|
| 《机械工人》 20051231 谢维立 "细长罗拉感应淬火、回火工艺实践" 第67-68页 1-5 , * |
| 谢维立: ""细长罗拉感应淬火、回火工艺实践"", 《机械工人》 * |
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