CN102041463A - Processing technology and device of hard alloy rod and wire rod with large reel weight and large section - Google Patents
Processing technology and device of hard alloy rod and wire rod with large reel weight and large section Download PDFInfo
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- CN102041463A CN102041463A CN2011100282165A CN201110028216A CN102041463A CN 102041463 A CN102041463 A CN 102041463A CN 2011100282165 A CN2011100282165 A CN 2011100282165A CN 201110028216 A CN201110028216 A CN 201110028216A CN 102041463 A CN102041463 A CN 102041463A
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Abstract
The invention discloses a processing technology of a hard alloy rod and a wire rod with large reel weight and large section, relating to a hot rolling production method comprising the following steps of a working procedure on a continuous production line: providing ingot casting raw material; removing the surface defect of the ingot casting raw material; heating the ingot casting raw material the surface defect of which is removed; rolling the heated raw material; and quenching the rolled raw material. The process method can be used for producing an alloy rod and a wire rod with large reel weight or thick large section, and further improves the mechanical properties of the material. The device implementing the process is successively provided with a feeding platform (1), a milling surface machine (2), a heating furnace, a continuous mill and a quenching section (8), wherein the heating furnace is divided into a preheating furnace (3) and a heating and holding furnace (5); the preheating furnace and the heating and holding furnace are connected via a flue gas pipeline (4) leading waste hot gas generated by the heating and holding furnace into the preheating furnace; and the continuous mill is divided into a rough mill (6) and a finishing mill (7). The device has small floor space and lightens the labor intensity of workers.
Description
Technical field
The invention belongs to stress metal processing and manufacturing technical field, relate in particular to the hot rolling continuous production method of a kind of novel hard alloy rod drum or straight-bar material.
Background technology
The aluminium alloy that traditional stell(ite), particularly timeliness can be strengthened as the 2xxx in the aluminium alloy, 6xxx and 7xxx alloy, is often done the starting material of structural articles and forging and pressing goods.As being that starting material are done goods with 6xxx, the method production that general small business adopts casting ingot directly to forge and press is as the bicycle crank of indivedual manufacturer production, poor product quality; The enterprise that specification of quality is high adopts extruding for base, and forging and pressing are made then.But aborning, the instability of material in container flows during owing to extruding, and radially the performance difference with axial is bigger to have determined material; As 7075 T6 state aluminium alloys, squeeze wood L-T to T-L to Typical Planar strain fracture toughness property differ about 21.4%(and see " aluminium processing technology application manual " in October, 2004 p186 of metallurgical industry press), cause each bigger to the influence of the finished product use properties to performance difference because of material; Also may produce coarse grain ring or defective such as loose, cause the end product quality instability.
Another weak point of extruding feed is the be squeezed influence of cylinder size of blank, base heavily is restricted, therefore extrusion billet must hot shears be cut into short ingot blank before extruding, ingot blank is heavy generally to have only tens kilograms, so the goods limited length that squeezes out, the follow-up industrialization automatic production line of incompatibility quantity-produced demand.
The material behavior difference that the extruding feed brings, the heavy less and large industrialized quantity-produced contradiction of base do not find better terms of settlement always in the production of extruding feed.
Summary of the invention
In order to solve the problem that prior art exists, one of purpose of the present invention provides a kind of processing method of producing non-ferrous metal stell(ite) straight-bar and dish pole line, this processing method can be produced the great or thick large section alloy bar wire rod of volume, and further improves the every machinery and the mechanical property of material.
Another object of the present invention provides a kind of device by the complete processing configuration, and this plant area area is little, and can alleviate labor strength.
One of for achieving the above object, the present invention adopts technical scheme as described below:
Heavy and the big section stell(ite) rod of deep bid of the present invention, wire rod processing process, this technology comprises the step of following continuous production line procedures:
A), provide the ingot casting raw material;
B), remove ingot casting stock chart plane defect;
C), the ingot casting raw material of removing surface imperfection is heated;
D), the raw material after the rolling heating;
E), rolling back raw material is quenched.
Be better implement the invention, also comprise quenching back raw material is batched, as the tinuous production step.
Be better implement the invention, also comprise quenching back raw material is cut into the vertical bar scale, as the tinuous production step.
Be better implement the invention, described ingot casting raw material is handled through homogenizing annealing.
Be better implement the invention, described ingot casting stock chart plane defect is segregation, cold shut and inclusion layer.
Be better implement the invention, described step to raw material heating comprises preheating, heating and insulation, and is the waste hot gas that produces when utilizing heating raw during to raw material preheating.
Be better implement the invention, described ingot casting raw material is through roughing and finish rolling.
Be better implement the invention, described ingot casting raw material is rolling through 6 to 16 passages.
For realizing two of purpose of the present invention, device of the present invention is as follows by the complete processing configuration:
Device of the present invention is that feeding platform, turnning and milling face machine, process furnace, continuous mill and quenching section are set gradually, and described process furnace is divided into preheating oven and heat tracing stove, described preheating oven links to each other by flue with the heat tracing stove, and the waste hot gas conducting that this flue produces the heat tracing stove is to preheating oven; Described continuous mill is divided into roughing mill and finishing mill.
Be better implement the invention, described device also comprises reeling machine, plate drawing machine or the shears that is provided with continuously with the section of quenching.
Complete processing of the present invention both had been different from general extrusion line, also was different from the continuous casting and rolling process for production of aluminum steel bar; Continuous casting and rolling process for production can only be produced the cable of minor diameter with aluminum steel or low-alloy aluminum steel, can't satisfy the demand of user to stell(ite) rod drum or straight-bar material.
The present invention adopts rolling process, because rolling bar and extruded bars be difference to some extent on complete processing, bring properties of materials difference to some extent: rolling by the distortion of big ingot process multi-pass repeat-rolling, the speed of rolls and rolled piece gait of march are basic identical, material property is even than squeeze wood, no coarse grain ring, problems such as the major part or the tail that contracts; Rolled stock L-T to T-L to Typical Planar strain fracture toughness property only differ 15.4%(and see " aluminium processing technology application manual " in October, 2004 p186 of metallurgical industry press), compared with squeeze wood, each is more approaching to performance for rolled stock, helps the moulding of the follow-up forging process of user and the inner quality of goods.
Why this technology adopts the ingot casting of handling through homogenizing annealing to make starting material, is based on following principle: the stell(ite) goods of big section generally have multiple alloying element through being cast as the ingot casting of big section, form through press working again.The ingot casting of big section in casting because of alloying element too much easily produces segregation, cold shut, defective such as be mingled with, loosen, particularly ingot casting inside is because of each element fusing point difference, because of little uneven components produces internal stress, cause the material internal stress concentration during crystallization, even splitting.Therefore long homogenizing annealing must be adopted, component segregation and problem of stress concentration could be solved.Must adopt the ingot casting behind homogenizing annealing could extrusion production as the 7xxx aluminium alloy.
Because adopt aforesaid technical scheme, the present invention has following superiority:
1, rolling technology of the present invention is compared with extrusion process: the one, the rolled piece after the processing no longer under the extrusion process mode of operation because of the restriction of the tube length degree that is squeezed, every ingot casting wants hot shears to be cut into the more piece ingot casting, as the long ingot casting of 6.2m need be cut into 10 and save; Technology of the present invention is as long as burner hearth length allows the rolling in theory restriction that is not subjected to ingot casting length.The 2nd, rolling technology can be produced the saw lumber of deep bid regrate, and the main waste product of this technology is to mill segregation, cold shut and the inclusion layer of removing before the ingot casting heating, and it is surplus to leave big pressure unlike extrusion process; Therefore the speed of roll and rolled piece operation basically identical do not have coarse-grain, major part and the tail that contracts and take place during in addition owing to rolling deformation, the interior tissue homogeneous, and yield rate is far above extrusion process.
2, because rolling technology of the present invention can be produced the saw lumber of deep bid regrate, as operator in the bicycle crank production process no longer need be under the extrusion process mode of operation delivering on the punch press one of pressing material one time (6m long), only need will expect on the uncoiling frame and can serialization produce automatically on the dish circle long about 200m, significantly reduce waste materials such as stub bar, material tail, improved user's yield rate.
3, the rolled piece of art breading of the present invention, after recirculated water quenching section, cooling intensity is higher than the material that the blast-cold of extrusion process air is handled, and is more favourable to guaranteeing that material is in molten admittedly state.
4, because rolling technology can be produced the saw lumber of deep bid regrate, the feasibility that this just thrusts at a high speed for follow-up punching press forging process provides, serialization is produced has improved the productivity of factory greatly, has alleviated working strength of workers.
5,, make rolling bar be much better than the performance of extruded bars, for the user adopts new technology, the design of the finished product and tissue production provide more superior condition because the difference to some extent on complete processing of rolling bar and extruded bars.
6, machine array apparatus compact construction of the present invention, the throughput of many extrusion machines of collection, the production capacity height, and it is few to account for the workshop area, and general configurable in the factory building of 〉=12～15m span.
Description of drawings
Fig. 1 is the schematic representation of apparatus of the present invention by the complete processing configuration;
1-feeding platform; 2-turnning and milling face machine; 3-preheating oven; 4-flue; 5-heat tracing stove; 6-roughing mill; 7-finishing mill; 8-the section of quenching; 9-reeling machine.
Embodiment
In conjunction with Fig. 1, transport on the feeding platform 1 by the round ingot casting that lifting machine is long with 6m, pass through online turnning and milling face machine 2 and mill segregation layer, the cold shut on ingot casting surface fast and be mingled with etc.; Under the operation of rolling operator, the aluminium ingot follow procedure enters preheating oven 3; Aluminium ingot through after the preheating progressively enters heat tracing stove 5; The hot waste gas that heat tracing stove 5 produces enters preheating oven 3 by flue 4, and it is mobile to form hot blast by the recycle system in the preheating oven 3, the cold aluminium ingot of preheating; Preheating oven 3 mainly according to the temperature head of ingot casting in hot waste gas and the preheating oven 3, carries out heat exchange, the preheating ingot casting; For prevent spent air temperture sometimes (as winter) may cross and low influence production schedule, preheating oven 3 tops are reserved with a burner, prepare against the need of attemperation.Aluminium ingot is through after 5 heating of heat tracing stove and being incubated cogging temperature, send by operator and to come out of the stove and rolling order, ingot casting enters roughing mill 6 and finishing mill 7, rolling through 6 to 16 passages, ingot casting is rolled required size, fast by the section 8 of quenching, batch biscuit fast afterwards by reeling machine 9.Biscuit takes off the back and puts into next root material at once and come out of the stove in the rolling work.When if size that the client needs and the sub-distribution of frame road are inconsistent, adopt the finishing that stretches of large-scale plate drawing machine, can satisfy customer requirements.And if the bar of rolling bigger section, rolled piece can be directly on the interim bin of back after quenching, according to the severing of customer requirements size.
It should be noted that technology of the present invention and install not detailed descriptionthe and partly be prior art; And the combined innovation that focuses on production technique of the invention, therefore, this paper not prior art of detailed descriptionthe shall not be construed as restriction to the invention.
Claims (10)
1. a deep bid weighs and big section stell(ite) rod, wire rod processing process, and it is characterized in that: this technology comprises the step of following continuous production line procedures:
A), provide the ingot casting raw material;
B), remove ingot casting stock chart plane defect;
C), the ingot casting raw material of removing surface imperfection is heated;
D), the raw material after the rolling heating;
E), rolling back raw material is quenched.
2. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process is characterized in that: also comprise quenching back raw material is batched, as the tinuous production step.
3. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process is characterized in that: also comprise quenching back raw material is cut into the vertical bar scale, as the tinuous production step.
4. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process, it is characterized in that: described ingot casting raw material is handled through homogenizing annealing.
5. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process, it is characterized in that: described ingot casting stock chart plane defect is segregation, cold shut and inclusion layer.
6. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process is characterized in that: described step to the raw material heating comprises preheating, heating and insulation, and is the waste hot gas that produces when utilizing heating raw during to raw material preheating.
7. the heavy and big section stell(ite) rod of deep bid according to claim 1, wire rod processing process, it is characterized in that: described ingot casting raw material is through roughing and finish rolling.
8. weigh and big section stell(ite) rod, wire rod processing process according to claim 1 or 7 described deep bids, it is characterized in that: described ingot casting raw material is rolling through 6 to 16 passages.
9. implement the device of the heavy and big section stell(ite) rod of the described deep bid of claim 1, wire rod processing process, it is characterized in that: described device is that feeding platform (1), turnning and milling face machine (2), process furnace, continuous mill and quenching section (8) are set gradually, and described process furnace is divided into preheating oven (3) and heat tracing stove (5), described preheating oven links to each other by flue (4) with the heat tracing stove, and the waste hot gas conducting that this flue (4) produces heat tracing stove (5) is to preheating oven (3); Described continuous mill is divided into roughing mill (6) and finishing mill (7).
10. device according to claim 9 is characterized in that: described device also comprises reeling machine, plate drawing machine or the shears that is provided with continuously with the section (8) of quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100282165A CN102041463A (en) | 2011-01-26 | 2011-01-26 | Processing technology and device of hard alloy rod and wire rod with large reel weight and large section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100282165A CN102041463A (en) | 2011-01-26 | 2011-01-26 | Processing technology and device of hard alloy rod and wire rod with large reel weight and large section |
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| CN102041463A true CN102041463A (en) | 2011-05-04 |
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| CN2011100282165A Pending CN102041463A (en) | 2011-01-26 | 2011-01-26 | Processing technology and device of hard alloy rod and wire rod with large reel weight and large section |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329676A (en) * | 1998-10-01 | 2002-01-02 | 通用电气公司 | Method for processing billets out of metals and alloys and article |
| CN1834276A (en) * | 2006-04-25 | 2006-09-20 | 东北轻合金有限责任公司 | Method of preparing aviation alloyed aluminium variable section sheets |
| CN101670364A (en) * | 2009-09-14 | 2010-03-17 | 中色科技股份有限公司 | Novel hard alloy wire rod processing process |
| CN201470673U (en) * | 2009-09-14 | 2010-05-19 | 中色科技股份有限公司 | Novel cold and hot rolling mill for processing hard alloy wires |
-
2011
- 2011-01-26 CN CN2011100282165A patent/CN102041463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329676A (en) * | 1998-10-01 | 2002-01-02 | 通用电气公司 | Method for processing billets out of metals and alloys and article |
| CN1834276A (en) * | 2006-04-25 | 2006-09-20 | 东北轻合金有限责任公司 | Method of preparing aviation alloyed aluminium variable section sheets |
| CN101670364A (en) * | 2009-09-14 | 2010-03-17 | 中色科技股份有限公司 | Novel hard alloy wire rod processing process |
| CN201470673U (en) * | 2009-09-14 | 2010-05-19 | 中色科技股份有限公司 | Novel cold and hot rolling mill for processing hard alloy wires |
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Application publication date: 20110504 |