CN100584515C - A kind of production technique of single hydraulic prop cap - Google Patents
A kind of production technique of single hydraulic prop cap Download PDFInfo
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- CN100584515C CN100584515C CN200810158227A CN200810158227A CN100584515C CN 100584515 C CN100584515 C CN 100584515C CN 200810158227 A CN200810158227 A CN 200810158227A CN 200810158227 A CN200810158227 A CN 200810158227A CN 100584515 C CN100584515 C CN 100584515C
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- forging
- steel
- column cap
- cap
- hole
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Abstract
The production technique of single hydraulic prop cap that a kind of cost is low, efficient is high, comprise the steps: a, buy steel (forging line base ability strong use continuous casting billet, use round steel a little less than the base ability); B, blanking; C, steel billet are heated to 900～1250 ℃ with electric furnace or Fuel Furnace; D, remove surface scale; E, steel billet are finished base on mechanical shaping equipment; F, the ready-made forging blank of system are put into and are carried out the non-trimming closed-die forging on the forcing press; G, column cap forging utilize residual forging heat heat treatment; H, drilling machine roughing Φ 42mm hole; I, lathe are thick, fine finishining is once finished; J, zinc-plated; K, warehouse-in.
Description
Technical field
The present invention relates to a kind of production technique of single hydraulic prop cap.
Background technology
At present, the production technology of the accessory column cap (as shown in Figure 1) of colliery hydraulic prop following (column cap with production length 156mm is an example):
Buying diameter is round steel, blanking (8.8+0.1KG), the hole of two Φ 64mm of drilling machine brill and hole, lathe roughing, the hole of drilling machine roughing Φ 42mm, heat treatment (with resistance furnace, Medium Frequency Induction Heating Furnace or Fuel Furnace), lathe fine finishining, zinc-plated, the warehouse-in of a Φ 40mm of 95mm.
The problem that current column cap production technology exists is as follows:
1, bore the hole of two Φ 64mm and the hole of a Φ 40mm with drilling machine, both waste material, increase production cost reduced production efficiency again.
2, heat-treat after the column cap roughing, the product hardness instability also increases production cost again.
3, raw material use the round steel of diameter as 95mm, and Φ 80mm～Φ 65mm round steel or continuous casting steel billet price per ton are high 60～600 yuan than buying.
4, lathe divides thick, finishing step, reduces production efficiency and increases production cost.
Summary of the invention
The purpose of this invention is to provide the column cap production technology that a kind of cost is low, efficient is high.
For achieving the above object, the technical solution used in the present invention is:
A kind of production technique of single hydraulic prop cap is characterized in that: comprise the steps:
A, buy steel (forging line base ability strong use continuous casting billet, use round steel a little less than the base ability);
B, blanking;
C, steel billet are heated to 900～1250 ℃ with electric furnace or Fuel Furnace;
D, remove surface scale;
E, steel billet are finished base on mechanical shaping equipment;
F, the ready-made forging blank of system carry out the non-trimming closed-die forging on forcing press;
G, column cap forging utilize residual forging heat heat treatment;
H, drilling machine roughing Φ 42mm;
I, lathe are thick, fine finishining is once finished;
J, zinc-plated;
K, warehouse-in.
It is raw material that the present invention can adopt the lower continuous casting steel billet of price or Φ 80mm～Φ 65mm round steel, adopt non-trimming closed-die forging technology, directly forge the hole of two Φ 64mm and the hole of a Φ 40mm, can enhance productivity, save raw material, reduce production costs; And utilize the waste heat after column cap forges to heat-treat, and can reach the hardness requirement, reduced production cost again.
Description of drawings
Fig. 1 is that present length is the column cap structural representation of 156mm;
Fig. 2 is to use the column cap structural representation of explained hereafter of the present invention;
Fig. 3 is the assembling schematic diagram of embodiment 1 described mould;
Fig. 4 is the assembling schematic diagram of embodiment 2 described moulds;
Fig. 5 is the structural representation of the special pliers that uses among the embodiment 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described:
A kind of production technique of single hydraulic prop cap comprises the steps;
A, buy steel (forging line base ability strong use continuous casting billet, use round steel a little less than the base ability);
B, blanking;
C, steel billet are heated to 900～1250 ℃ with electric furnace or Fuel Furnace;
D, remove surface scale;
E, steel billet are finished base on mechanical shaping equipment;
F, the ready-made forging blank of system carry out the non-trimming closed-die forging on forcing press;
G, column cap forging utilize residual forging heat heat treatment;
H, drilling machine roughing Φ 42mm;
I, lathe are thick, fine finishining is once finished;
J, zinc-plated;
K, warehouse-in.
The present invention can reduce the column cap production cost, improves the stability of heat treatment hardness, saves steel, enhance productivity.
Embodiment 1:
Buying specification is the continuous casting steel billet of 80x80mm, band sawing machine blanking 6.75Kg, be heated to 1100～1180 ℃ with the push-down coal-fired gas furnace, after coming out of the stove, on the 400Kg pneumatic hammer, makes on the steel billet of heating the round base that diameter is 91 ± 1.5mm, put into 630 tons of friction press moulds and carry out the non-trimming closed-die forging, forge column cap forging shape (the mould installation diagram is seen Fig. 3) as shown in Figure 2, press air operated reversing valve, is thickness of mold bottom the movable steel plate extraction of 60mm, friction press goes out together with two movable cores of forging the column cap forging blank from mould inner pressure, fall in the foundation pit from friction press liftout hole and to cool off and (deposit concentration in the foundation pit and be 3～5% saline solution, temperature is controlled in 20～50 ℃ of scopes during this saline solution work, circulate, gross weight is not less than 8 tons), column cap cools off (summer after 6～9 seconds in saline solution, when room air does not flow, during the saline solution temperature drift, column cap in saline solution cool time the capping value, otherwise take off limit value), steel wire conveyer belt with adjustable-speed is sent to ground to column cap and two movable cores of forging, and arrives the single cool to room temperature in the air (definitely can not be deposited in together) that is placed in of column cap on ground.Being taken in the air column cap of cool to room temperature checks and (if column cap hardness is higher, then transfers fast steel wire line speed, reduce the cool time of column cap at saline solution, otherwise the line speed of turning down), drilling machine roughing Φ 42mm, lathe is thick, fine finishining is once finished, zinc-plated, warehouse-in.
In the present embodiment, every long 156mm single hydraulic prop cap production cost is than low 10～12 yuan of present technology.
Embodiment 2:
Buying diameter is the round steel of 80mm, bar shear blanking 6.65Kg, be heated to 1120～1200 ℃ with the 500KW Medium Frequency Induction Heating Furnace, being pressed into diameter on 100 tons of punch presses is the round base of 92 ± 1mm, put into ton punch press and carry out closed-die forging (the mould installation diagram is seen Fig. 4), the punch press automatic material jacking ejects column cap forging and internal mold, operating personnel clamp the column cap two ends with special pliers (referring to Fig. 5), putting into satiety closes the three pin aqueous solution and cools off air cooling after 25～30 seconds (satiety is closed three pin aqueous solution operating temperatures and is controlled at 20～55 ℃ of scopes, and with circulation cooling in the cooling tower), with 560 ± 30 ℃ of tempering of well formula tempering furnace, drilling machine roughing Φ 42mm, lathe is thick, fine finishining is once finished, and is zinc-plated, warehouse-in.
In the present embodiment, the single hydraulic prop cap production cost of every long 156mm is than low 7～9 yuan of present production technology.
Embodiment 3:
Buying diameter is the round steel of 80mm, bar shear blanking 6.65Kg, be heated to 1100～1160 ℃ with the 500KW Medium Frequency Induction Heating Furnace, being pressed into diameter on 100 tons of punch presses is the round base of 92 ± 1mm, put into 400 tons of hydraulic presses and carry out closed-die forging, automatic material jacking ejects the column cap forging, operating personnel clamp the column cap two ends with special pliers (referring to Fig. 5), put into running water and cool off air cooling after 8～12 seconds, be taken in the air column cap of cool to room temperature and check and (, reduce the cool time of column cap at running water if column cap hardness is higher, otherwise) drilling machine roughing Φ 42mm, lathe is thick, fine finishining is once finished, and is zinc-plated, warehouse-in.
In the present embodiment, the single hydraulic prop cap production cost of every long 156mm is than low 8～10 yuan of present production technology.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; under the prerequisite that does not break away from design concept of the present invention; common engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
The present invention utilizes the column cap residual forging heat to heat-treat, and has saved the heat treatment step after the roughing; Bore without drilling machine with forging in the hole of two Φ 64mm of column cap and the hole of a Φ 40mm, has improved production efficiency; Continuous casting steel billet or the Φ 80mm～Φ 60mm round steel lower with price replace the higher Φ 95mm round steel of price to produce column cap, reduce the column cap production cost.After adopting the present invention, every single hydraulic prop cap production cost is than low 7～12 yuan of present technology.The annual single hydraulic prop cap of producing in the whole nation can be saved social resources more than 1,500 ten thousand yuan more than more than 180 ten thousand.
Claims (1)
1, a kind of production technique of single hydraulic prop cap is characterized in that: comprise the steps:
A, buy steel, forging line base ability is strong use continuous casting billet, uses round steel a little less than the base ability;
B, blanking;
C, steel billet are heated to 900～1250 ℃ with electric furnace or Fuel Furnace;
D, remove surface scale;
E, steel billet are finished base on mechanical shaping equipment, obtain forging blank;
F, the ready-made forging blank of system are put into and are carried out the non-trimming closed-die forging on the forcing press, directly forge the hole of two Φ 64mm and the hole of a Φ 40mm, obtain the column cap forging;
G, column cap forging utilize residual forging heat heat treatment;
H, drilling machine roughing Φ 42mm hole;
I, lathe are thick, fine finishining is once finished;
J, zinc-plated;
K, warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810158227A CN100584515C (en) | 2008-10-20 | 2008-10-20 | A kind of production technique of single hydraulic prop cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810158227A CN100584515C (en) | 2008-10-20 | 2008-10-20 | A kind of production technique of single hydraulic prop cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101391370A CN101391370A (en) | 2009-03-25 |
| CN100584515C true CN100584515C (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810158227A Expired - Fee Related CN100584515C (en) | 2008-10-20 | 2008-10-20 | A kind of production technique of single hydraulic prop cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN100584515C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722406B (en) * | 2009-12-31 | 2011-11-02 | 上海新闵重型锻造有限公司 | Method for manufacturing pin shaft through forging |
| CN102886644A (en) * | 2012-09-11 | 2013-01-23 | 昌利锻造有限公司 | Method for manufacturing high-strength pin shaft |
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2008
- 2008-10-20 CN CN200810158227A patent/CN100584515C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN101391370A (en) | 2009-03-25 |
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Granted publication date: 20100127 Termination date: 20111020 |