CN1212054C - Technique of manufacturing steel spade in environment protechion type - Google Patents
Technique of manufacturing steel spade in environment protechion type Download PDFInfo
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- CN1212054C CN1212054C CN 03100598 CN03100598A CN1212054C CN 1212054 C CN1212054 C CN 1212054C CN 03100598 CN03100598 CN 03100598 CN 03100598 A CN03100598 A CN 03100598A CN 1212054 C CN1212054 C CN 1212054C
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- spade
- trousers
- tempering
- furnace
- steel shovel
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Abstract
The present invention discloses a technology for producing a steel spade in an environmental protection type, which comprises a roller hearth furnace, a mechanical press machine, a tempering furnace and a water washing device and has the production procedures: an original spade piece is put in the roller hearth furnace to heat a member; the heated original spade piece is put in the mechanical press machine, the surface of the spade piece is stewed and printed with a product brand and then is formed; the formed spade piece is put in a trousers rolling machine to carry out trousers rolling, stewing and printing, and forming, wherein the trousers rolling is completed within 10 seconds; a steel spade for rolling trousers is put in a quenching furnace and utilizes the proper residual heat of the spade trousers to quench by a quenching medium; the quenched steel spade is put in the tempering furnace for tempering and then is put in the water washing device for wash after tempered. After the steel spade is washed, washing wastewater is led into a recovery device of the roller hearth furnace by a recovery pipe, and is heated for evaporation and is condensed by the residual heat of the roller hearth furnace, and then the quenching medium is recovered. The present invention changes a traditional production technology and has the advantages of high production quality, no environmental pollution, recoverable quenching media and low production cost.
Description
Technical field
The present invention relates to a kind of production method of steel shovel, belong to farm machinery manufacturing technology field.
Background technology
The production of steel shovel is heating source with the fire coal at present, the smoke dust discharge concentration height, and environmental pollution is serious.Production process is controlled heating-up temperature by the artificial visually examine, and temperature fluctuation is bigger, can not guarantee product hardness well.Existing manufacturing technique flow process such as Fig. 2, two operations of its moulding and thermal treatment, each operation all will heat product.
In thermal treatment heating process, the distortion of product is serious, needs artificial shaping for recovering shape, has both wasted manpower, can not guarantee product quality greatly because of operation easier again.And there are not the recovery technology of hardening media, the direct exhaust emission environment of washes in the production technology.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of kind of drive with stove at the bottom of the roller is provided, is heating source with the liquefied gas, only with a production line, adopts the method for controlling heating-up temperature automatically, make heating-up temperature remain on 〉=800 ℃; Hardness number is controlled at HRC40-50 ℃, guarantees the inherent quality of product.The kind of drive of stove heats continuously to the spade sheet at the bottom of the employing roller; Directly carry out Quenching Treatment after the steel shovel moulding, changed the mode of two operation operations of former branch.And be provided with the closed cycle of hardening media washings, reclaim hardening media, both realized having reached environmental protection requirement by wastewater zero discharge, saved hardening media again, the production method of a kind of steel shovel that reduces production costs with the mode of evaporation and concentration.
The object of the present invention is achieved like this, be included in stove at the bottom of the roller on the production line, punching machine and tempering furnace and water washing device, it is characterized in that, this technology is heating source with the liquefied gas, undertaken by following step, a, former of spade is put into stove at the bottom of the roller, adopt contrary traffic direction flame product to be heated, be controlled at heat time heating time 5-10 minute by the mode of the downward oblique fire in top; B, former of the spade of heating is put into punching machine, the stewing seal product brand moulding then on spade sheet surface, is put into pants-coiling machine with the spade sheet of moulding and is rolled up trousers c, and stewing seal, moulding, volume trousers were finished in 10 seconds; D, the steel shovel that will roll up trousers are put into glowing furnace, utilize the waste heat of spade trousers itself to quench with hardening media, e, will put into the tempering furnace tempering through the steel shovel that quenches; F, will put into the tempering furnace tempering through the steel shovel that quenches, and put water washing device after the tempering into and adopt reverse water-washing method to clean, quenching, tempering, cleaning need 30-40 minute altogether, and rolling off the production line after washing finishes is the finished product steel shovel; G, the washes after cleaning cause with recovery tube in the retracting device of stove at the bottom of the roller, with the waste heat of stove at the bottom of the roller with the washes heating evaporation, concentrate, reclaim hardening media.
Described heating-up temperature is between 850--900 ℃.
Compared with prior art, advantage of the present invention is:
One, adopts liquefied gas and electrically heated mode to produce steel shovel, abandoned the technology that steel shovel is produced in original fire coal heating, thoroughly solved steel shovel and produced the over-emitting black exhaust problem of environment pollution caused.Both improve operating environment, and can fundamentally guarantee operator's physical and mental health again.Make simultaneously the air of plant area top keep pure and fresh again, stop to pollute.
Two, adopt that the kind of drive of stove heats continuously to the spade sheet at the bottom of the roller, cancelled the product carriage, avoided the thermal loss taken away because of carriage, improved production efficiency.
Three, the flame injection method of contrary product traffic direction that added thermal recovery makes progressive intensification of product and heat transfer temperature difference little, has improved heat energy utilization rate and heating quality.
Four, directly carry out Quenching Treatment after the steel shovel moulding, changed the mode of two operation operations of former branch, reduce one time heating process, save the energy, artificial, reduce toxic emission, the calendering effect of moulding, it is more thorough that metallographic structure is transformed, and improved product quality.
Five, adopted reverse water-washing method that product is cleaned, both using water wisely have improved cleaning performance again.
Six, the new production line is provided with the device of closed cycle, evaporation and concentration recovery hardening media, has both realized wastewater zero discharge, has reached environmental protection requirement, has saved hardening media again, has reduced production cost.
Seven, the present invention has adopted the method that the moulding waste heat makes full use of, and has thoroughly solved the drawback of product distortion in the production process, has promptly reduced production cost, has guaranteed product quality again.Reduced the workman of 10 shapings of trimming.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is the process chart of prior art.
Embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
The present invention is improvements over the prior art, changes a production line into by existing two production lines, and employed equipment has stove at the bottom of the roller, punching machine and Equipment for Heating Processing (tempering furnace etc.) and water washing device.Stove is equipped with the hardening media retracting device on one side at the bottom of the roller, and the washings of water washing device are connected with the hardening media retracting device with recovery tube.This technology with electricity after liquefied gas be heating source, the present invention adopts liquefied gas heating, its technological process such as accompanying drawing 1, referring to accompanying drawing 1, the present invention produces by following step operation:
1, former of spade is put into stove at the bottom of the roller, adopted contrary traffic direction flame product to be heated, be controlled at heat time heating time 5-10 minute, between heating-up temperature 850-900 ℃ by the mode of the downward oblique fire in top;
2, former of the spade of heating is put into punching machine, in the moulding then of spade sheet surface stewing seal product brand;
3, the spade sheet of moulding is put into pants-coiling machine and roll up trousers, stewing seal, moulding, volume trousers were finished in 10 seconds;
4, the steel shovel that will roll up trousers is put into glowing furnace, utilizes the waste heat of spade trousers itself to quench with hardening media, and hardening media adopts salt bath solution;
5, will put into the tempering furnace tempering through the steel shovel that quenches;
6, will put into the tempering furnace tempering through the steel shovel that quenches, and put water washing device after the tempering into and adopt reverse water-washing method to clean, quenching, tempering, cleaning need 30-40 minute altogether, and rolling off the production line after washing finishes is the finished product steel shovel;
7, the washes after cleaning causes with recovery tube in the retracting device of stove at the bottom of the roller, with the waste heat of stove at the bottom of the roller with the washes heating evaporation, concentrate, reclaim hardening media.Hardening media can utilize after reclaiming once more.Circulation and so forth.
The traffic direction that adds the contrary workpiece of thermal-flame of the present invention sprays, and heat transfer temperature difference is little, and the progressive intensification of product has improved the heat energy utilization rate.Adopt the mode of reverse washing, promptly workpiece is introduced into the tank flushing of flowing and went out groove in about 3 minutes after going out tempering furnace on the production line, sprays with a small amount of clear water.Steel shovel by this explained hereafter is sturdy and durable.
Equipment used in the present invention except that roller at the bottom of stove installed additional the hardening media retracting device, all the other are known equipment.
Claims (2)
1, a kind of production method of steel shovel is included in stove at the bottom of the roller on the production line, punching machine and tempering furnace and water washing device, it is characterized in that this method is heating source with the liquefied gas, undertaken by following step,
A, former of spade is put into stove at the bottom of the roller, adopt contrary traffic direction flame product to be heated, be controlled at heat time heating time 5-10 minute by the mode of the downward oblique fire in top;
B, former of the spade of heating is put into punching machine, stewing seal product brand moulding then on spade sheet surface;
C, the spade sheet of moulding is put into pants-coiling machine roll up trousers, stewing seal, moulding, volume trousers were finished in 10 seconds;
D, the steel shovel that will roll up trousers are put into glowing furnace, utilize the waste heat of spade trousers itself to quench with hardening media;
E, will put into the tempering furnace tempering through the steel shovel that quenches;
F, will put into the tempering furnace tempering through the steel shovel that quenches, and put water washing device after the tempering into and adopt reverse water-washing method to clean, quenching, tempering, cleaning need 30-40 minute altogether, and rolling off the production line after washing finishes is the finished product steel shovel;
G, the washes after cleaning cause with recovery tube in the retracting device of stove at the bottom of the roller, with the waste heat of stove at the bottom of the roller with the washes heating evaporation, concentrate, reclaim hardening media.
2, the production method of a kind of steel shovel according to claim 1 is characterized in that, heating-up temperature is between 850-900 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100598 CN1212054C (en) | 2003-01-21 | 2003-01-21 | Technique of manufacturing steel spade in environment protechion type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100598 CN1212054C (en) | 2003-01-21 | 2003-01-21 | Technique of manufacturing steel spade in environment protechion type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1518856A CN1518856A (en) | 2004-08-11 |
| CN1212054C true CN1212054C (en) | 2005-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03100598 Expired - Fee Related CN1212054C (en) | 2003-01-21 | 2003-01-21 | Technique of manufacturing steel spade in environment protechion type |
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| Country | Link |
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| CN (1) | CN1212054C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407428A (en) * | 2011-09-06 | 2012-04-11 | 会理县机具厂 | Method for processing steel plane hoe |
| CN106862349B (en) * | 2016-10-26 | 2018-08-28 | 金东奎 | One kind is from dynamic pressure spade technique |
| CN108994205B (en) * | 2018-09-28 | 2020-01-31 | 唐山泰民科技有限公司 | Process for manufacturing steel spade based on continuous cold punching die |
| CN113560820A (en) * | 2021-07-23 | 2021-10-29 | 唐山腾飞五金工具制造有限公司 | Steel spade production process |
| CN114714050A (en) * | 2022-04-13 | 2022-07-08 | 唐山腾飞五金工具制造有限公司 | Steel spade production process |
-
2003
- 2003-01-21 CN CN 03100598 patent/CN1212054C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1518856A (en) | 2004-08-11 |
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