CN205170927U - Steel boiling water constant temperature quenching treatment device - Google Patents
Steel boiling water constant temperature quenching treatment device Download PDFInfo
- Publication number
- CN205170927U CN205170927U CN201521015741.3U CN201521015741U CN205170927U CN 205170927 U CN205170927 U CN 205170927U CN 201521015741 U CN201521015741 U CN 201521015741U CN 205170927 U CN205170927 U CN 205170927U
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- pond
- treatment device
- constant temperature
- boiling water
- steel
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Abstract
The utility model discloses a steel boiling water constant temperature quenching treatment device, which comprises a water tank, the lateral wall in pond is equipped with the heat preservation, the upper surface in pond is equipped with the lid that keeps warm, be equipped with a plurality of electric heating pipe and a thermocouple on the inside wall in pond, electric heating pipe is connected with the automatically controlled cabinet of PLC electricity, the thermocouple is connected with the temperature control instrument electricity, temperature control instrument with the automatically controlled cabinet of PLC electricity is connected, the left side wall below in pond is equipped with the water inlet, water inlet department be equipped with with the solenoid valve that the automatically controlled cabinet of PLC electricity is connected. Adopt the technical scheme of the utility model, no. 45 seamless steel part quenching crack of steel thin wall and hardness quality problems such as inhomogeneous have been solved.
Description
Technical field
The utility model belongs to steel quenching Tempering and Quenching technical field, specifically, relates to a kind of boiling water constant temperature quench treatment device for No. 45 steel seamless steel tube materials.
Background technology
The quenching of usual steel is modified refers to the dual thermal treatment that quenching increases temperature tempering, and its modified rear hardness can reach HRC30-35, its objective is and makes workpiece have good comprehensive mechanical performance.For light, Medium or severe type, the quenching modifier treatment requirement of special type, special purpose vehicle driving-shaft assembly No. 45 weldless steel tube materials used, common working method is by tubing by length requirement blanking, carries out quenching and the process of high tempering quenching-and-tempering process.Traditional technology medium carbon steel quenches, its main drawback throughout the year the spring, the summer, the autumn, the winter along with Seasonal Temperature Difference water temperature be change.The speed of cooling speed of steel in water and directly to affect quenching hardness uneven and crack; Especially winter water temperature low, No. 45 steel component are heated to 840 DEG C ± 5 DEG C and directly put into water, speed of cooling is fast, and the most easily occur crackle, former technique disqualification rate height about more than 10%, waste of raw materials is surprising.The forging parts that particularly some structures are more complicated, again comparatively greatly, if refrigerant selection is improper, part geometry shape is unreasonable or thickness difference in section transitions district is comparatively large, more easily causes stress concentration and causes quenching to burst and crackle in sectional dimension change.
The liquid medium that usual No. 45 medium carbon steel quenching uses is tap water at normal temperature, easily cause hardness uneven by tap water at normal temperature to component quenching and occur quenching crack defect etc., and the quenching temperature 840 DEG C ~ 860 DEG C that Chinese patent application publication No.: CN103484609A proposes, high tempering temperature 530 DEG C, salinization quenching medium is adopted to add sodium-chlor 3-4% by mass percentage, saltpetre 1-2%, all the other are water.This method hardening liquid not easily reclaims, and its discharge water easily produces contaminate environment, needs to carry out discharge water aftertreatment.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of steel boiling water constant temperature quench treatment device, solves No. 45 steel thin-wall seamless steel parts quenching crackles and the quality problems such as hardness is uneven.
For solving the problem, the utility model adopts following technical scheme:
A kind of steel boiling water constant temperature quench treatment device, comprise pond, the outer side wall in described pond is provided with thermal insulation layer, the upper surface in described pond is provided with insulation cover, the inner side-wall in described pond is provided with multiple electric heating tube and a thermopair, described electric heating tube is electrically connected with PLC electrical control cubicles, described thermopair is electrically connected with temperature control instrument, described temperature control instrument is electrically connected with described PLC electrical control cubicles, be provided with water-in below the left side wall in described pond, described water inlet is provided with the magnetic valve be electrically connected with described PLC electrical control cubicles.
As preferably, described pond is rectangular pool.
As preferably, the quantity of described electric heating tube is 6.
As preferably, described insulation cover is side turn over insulation cover, and the quantity of described side turn over insulation cover is 2.
As preferably, above the right side wall in described pond, be provided with water port.
The utility model adopts increases boiling water thermostatically-controlled equipment on the periphery of pond, by reducing the speed of cooling of workpiece in boiling water, make workpiece quenching hardness even, avoid quenching to burst, and then eliminate the modifier treatment process of high tempering, use average tempering instead, make workpiece hardness reach Rockwell HRC32-35, be applicable to the process of No. 45 carbon steel work-piece quenching hardening and tempering process; Do not use any medium, as salinization quenching medium, simple to operate, its discharge does not pollute environment simultaneously.
Accompanying drawing explanation
Fig. 1 is steel boiling water constant temperature quenching device structural representation of the present utility model;
Fig. 2 is steel boiling water constant temperature quenching device of the present utility model quenching schematic diagram.
In Fig. 1: 1, water-in; 2, pond; 3, thermal insulation layer; 4, insulation cover; 5, electric heating tube; 6, thermopair; 7, water port; 8, temperature control instrument; 9, PLC electrical control cubicles.
In Fig. 2: 1, water-in; 2, pond; 7, water port; 12, magnetic valve; 13, charging basket; 14, suspension hook.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in more detail:
As Fig. 1, shown in 2, the utility model embodiment provides a kind of steel boiling water constant temperature quench treatment device, comprise pond 2, the outer side wall in described pond 2 is provided with thermal insulation layer 3, the upper surface in described pond 2 is provided with insulation cover 4, the inner side-wall in described pond 2 is provided with multiple electric heating tube 5 and a thermopair 6, described electric heating tube 5 is electrically connected with PLC electrical control cubicles 9, described thermopair 6 is electrically connected with temperature control instrument 8, described temperature control instrument 8 is electrically connected with described PLC electrical control cubicles 9, water-in 1 is provided with below the left side wall in described pond 2, described water-in 1 place is provided with the magnetic valve 12 be electrically connected with described PLC electrical control cubicles 9.
The utility model adopts temperature control instrument 8 to be measured the temperature of water in pond 2 by thermopair 6, when temperature is higher than preset temp (preset temp is 90 DEG C), opened by PLC electrical control cubicles 9 Controlling solenoid valve 12 and add cold water injection by water-in to pond 2, when temperature is lower than preset temp, control the water in electric heating tube 5 electrified regulation pond 2 by PLC electrical control cubicles 9.
As preferably, described pond 2 is rectangular pool.
As preferably, the quantity of described electric heating tube 5 is 6.
As preferably, described insulation cover 4 is side turn over insulation cover, and the quantity of described side turn over insulation cover is 2.
As preferably, above the right side wall in described pond 2, being provided with water port 7, when described water port 7 is for adding cold water, preventing water in pond 2 from outwards overflowing.
Steel boiling water constant temperature quench treatment device of the present utility model is adopted to carry out quenching modifier treatment process as follows:
No. 45 steel seamless steel tubes are heated to temperature 820 DEG C in cabinet-type electric furnace, soaking time presses steel pipe workpieces wall thickness 2.5 minutes/mm, as requested after workpiece soaking time arrives, the insulation cover 4 of boiling water Water Tank with Temp.-controlled of slinging with driving, allows to carry out quenching and hardening and tempering process process.
Boiling water constant temperature quenching process is as follows: first the water in pond 2 is heated to 90 DEG C ± 2 DEG C scopes, hangs in pond 2 with driving by the charging basket 13 of heating, and the total height of charging basket 13 requires to dissolve in horizontal plane 15 ~ 30mm; With cleek the workpiece heated taken out rapidly in box-type furnace and pour charging basket 13 into, and put into pond 2 by traveling crane, and carry out double swerve.Can produce a large amount of bubble during quenching, stop rocking after bubble collapse, workpiece is cooled to boiled water temperature, charging basket 13 is hung out pond 2 shelve, under treating that workpiece is back to normal temperature, then workpiece is put into well formula tempering stove, carry out the average tempering modifier treatment of next step operation.During described quenching process, in pond 2, temperature can sharply raise, temperature control instrument 8 indicated temperature, when in now pond 2, water temperature is more than 90 DEG C, magnetic valve 12 switch is opened automatically, starts to enter cold water from water-in 1, when water temperature is lower than 90 DEG C, magnetic valve 12 inlet self-closing.Whole process is intake and draining fast by PLC electrical control cubicles 9 time variable control, to keep pond 2 homo(io)thermism, repeats above-mentioned quenching process, until after all workpiece quenches completely, stop 5 ~ 10 minutes, is sling by charging basket 13 with driving together with workpiece in quenching tank.With driving insulation cover 4 sling again and cover pond.After completing quenching, workpiece will carry out hardness sampling observation, and to meet hardness requirement, after quenching, hardness requirement is Rockwell HRC22 ~ 36.
Average tempering modifier treatment step: put upside down into charging basket by the workpiece cooled after quenching, hang in well formula tempering stove with driving, Heating temperature is 350 DEG C, and soaking time 2.5 hours, after coming out of the stove, natural air is cooled to room temperature.Workpiece hardness after sampling observation tempering, then by batch carrying out magnetic inspection detection.Temper number requires as Rockwell HRC32 ~ 35.
Economic and Efficiency Analysis calculates: boiling water quenching reaches same quenching and tempering hardness than cold-water quench, tempering temperature is low 180 DEG C ~ 210 DEG C saved electric energy expense, calculate by a 55KW electric furnace current consumption, heating-up time difference about 25 minutes, save (25 ÷ 60 × 55)=23 degree of electricity, the electricity charge 1 yuan are often spent by commercial power, every stove power cost saving 23 yuan, every stove tempering saves time 2.5 hours, calculate by temperable 6 heats every day, every day can power cost saving (23 × 6)=138 yuan, reduces cost, improves working efficiency.
Easily there is crackle and bursting in cold-water quench workpiece by contrast, make magnetic inspection and check comprehensively, not only waste of manpower man-hour, bursts and crackle part is then thoroughly scrapped, and brings uncertain financial loss in enormous quantities to factory.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection domain, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection domain of the present utility model.
Claims (5)
1. a steel boiling water constant temperature quench treatment device, it is characterized in that, comprise pond (2), the outer side wall in described pond (2) is provided with thermal insulation layer (3), the upper surface in described pond (2) is provided with insulation cover (4), the inner side-wall in described pond (2) is provided with multiple electric heating tube (5) and a thermopair (6), described electric heating tube (5) is electrically connected with PLC electrical control cubicles (9), described thermopair (6) is electrically connected with temperature control instrument (8), described temperature control instrument (8) is electrically connected with described PLC electrical control cubicles (9), water-in (1) is provided with below the left side wall in described pond (2), described water-in (1) place is provided with the magnetic valve (12) be electrically connected with described PLC electrical control cubicles (9).
2. a kind of steel boiling water constant temperature quench treatment device as claimed in claim 1, is characterized in that, be provided with water port (7) above the right side wall in described pond 2.
3. a kind of steel boiling water constant temperature quench treatment device as claimed in claim 1, it is characterized in that, described pond (2) are rectangular pool.
4. a kind of steel boiling water constant temperature quench treatment device as claimed in claim 1, it is characterized in that, the quantity of described electric heating tube (5) is 6.
5. a kind of steel boiling water constant temperature quench treatment device as claimed in claim 1, it is characterized in that described insulation cover (4) is for side turn over insulation cover, the quantity of described side turn over insulation cover is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015741.3U CN205170927U (en) | 2015-12-09 | 2015-12-09 | Steel boiling water constant temperature quenching treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015741.3U CN205170927U (en) | 2015-12-09 | 2015-12-09 | Steel boiling water constant temperature quenching treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205170927U true CN205170927U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521015741.3U Expired - Fee Related CN205170927U (en) | 2015-12-09 | 2015-12-09 | Steel boiling water constant temperature quenching treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205170927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420309A (en) * | 2018-03-15 | 2018-08-21 | 中山市美扬电器有限公司 | A kind of water boiling vessels and its working method with water quality detection |
-
2015
- 2015-12-09 CN CN201521015741.3U patent/CN205170927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420309A (en) * | 2018-03-15 | 2018-08-21 | 中山市美扬电器有限公司 | A kind of water boiling vessels and its working method with water quality detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161209 |