CN1067835A - Cold-drawing multi-head deformed steel bar forming process - Google Patents
Cold-drawing multi-head deformed steel bar forming process Download PDFInfo
- Publication number
- CN1067835A CN1067835A CN 91104016 CN91104016A CN1067835A CN 1067835 A CN1067835 A CN 1067835A CN 91104016 CN91104016 CN 91104016 CN 91104016 A CN91104016 A CN 91104016A CN 1067835 A CN1067835 A CN 1067835A
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- CN
- China
- Prior art keywords
- steel bar
- deformed steel
- enter
- wire drawing
- thread steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000010622 cold drawing Methods 0.000 title description 2
- 238000005491 wire drawing Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000005068 cooling lubricant Substances 0.000 claims description 5
- 238000005098 hot rolling Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005554 pickling Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 9
- 239000004567 concrete Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Metal Extraction Processes (AREA)
Abstract
The present invention belongs to the non-distortion processing of metal wire. The forming process of the multi-head deformed steel bar comprises the following steps: peeling a hot-rolled round steel wire rod (or a straight rod), pickling, neutralizing, washing, powdering, pointing, butt-welding, and uncoiling in an uncoiler; entering the anti-rotation device; entering a guide centering die; adding cooling lubricating liquid; entering a multi-head deformed steel bar rolling forming device; passing through an adapter to a finished product winding drum of a wire drawing machine; bundling the multi-thread deformed steel bar finished product, and inspecting and leaving the factory. The tensile strength of the product multi-start deformed steel bar produced by the process is improved by more than 50 percent compared with that of the parent metal, and the surface of the product multi-start deformed steel bar has uniform and continuous unevenness without stress concentration hazard.
Description
The invention belongs to the non-distortion processing of metal wire rod.
In building industry, use reinforcing bar in large quantities, and weigh the mark of reinforcing bar and concrete co-operation ability quality
Be bond stress, how improve bond stress, reducing amount of reinforcement is key subjects of the sector.The size of bond stress is by the bonding force of cement to reinforcing bar, concrete condenses the back to the chucking power of reinforcing bar and three factors compositions of rough and uneven in surface degree of rebar surface, and the form of rebar surface is determining the choice of 50% bond stress, therefore for a long time, the cold deformation reinforcing bar is all made in research in countries in the world, once produced indentation, the multiply kink, pier is thick, press ripple, the reinforcing bar of variforms such as bi-steel, in these numerous deformed bars, what have the leading position is cold rolled reinforcing steel bar with ribs, three row inclination fins are carved with on this Ribbed Bar surface, these fins have increased the bond stress of reinforcing bar and concrete, but fin itself does not participate in the axially loaded of reinforcing bar, fin belongs to indentation character, whole steel surface is black and blue all over, and intensity is affected.
The purpose of this invention is to provide the no indentation in a kind of surface, cross section is the manufacture method of cold group of deformed bar of regular polygon.
Cold group of technology for forming multiple-thread steel of the present invention is made up of following steps:
(1), with hot rolled circular steel wire rod (or vertical bar) peeling, pickling, neutralization, washing, last powder;
(2), prick point, butt welding, enter the uncoiler uncoiling;
(3), enter Device for preventing rotation, make mother metal be waviness curve and advance;
(4), enter the pilot centering mould;
(5), add cooling-lubricant;
(6), enter multiple-thread steel and roll the rolling shaped device;
(7), through adapter to wire drawing machine final capstan;
(8), the multiple-thread steel finished product ties up, check is dispatched from the factory.
Cold group of technology for forming multiple-thread steel of the present invention is to adopt hot rolling circle steel disk, vertical bar is a raw material, make multiple-thread steel through above-mentioned processing step, in above-mentioned steps, the peeling of hot rolling circle steel wire rod (or vertical bar), pickling, neutralization, washing, last powder, prick point, butt welding, enter the uncoiler uncoiling and be existing technology, the present invention has designed Device for preventing rotation especially, its objective is that making mother metal be waviness curve before the key equipment multiple-thread steel that enters this technology rolls the rolling building mortion advances, to remove fly in circles issuable equipment and the personal injury that the revolving force that produces in the workpiece spinning process is caused because of shaping mould, be indispensable safety devices in this technology, mother metal through Device for preventing rotation need be through the localization process of pilot centering mould, the multiple-thread steel of being allowed for access rolls rolles over shaped device (patent No. of this device is CNZLSS216188.1), before entering above-mentioned shaped device, need add cooling-lubricant, cooling-lubricant is a kind of good cooling that has, the aqueous solution of lubricant effect, and adopt to dash and penetrate the formula feed flow, dash and penetrate the position on the workpiece of shaped device import, moving workpiece is brought liquid in the shaped device at any time, directly wash away the roller working position, heat is taken away, roller is well cooled off, remaining in the liquid moisture content that rolls on the multiple thread steel wire of rolling over after the moulding is evaporated by the high temperature workpiece, stay lubricant, multiple thread steel wire climbing on circular cone wire drawing drum squeezed carry out smoothly.Through the steel wire that shaped device comes out, need to enter wire drawing machine finished product drum through adapter, to tie up then, check is dispatched from the factory.The effect of adapter is multiple-thread steel to be rolled roll over shaped device and the wire drawing machine organically cooperates, the wire drawing machine can adopt the wire drawing machine of existing any model, the design of adapter will be carried out according to the model of selected wire drawing machine, but its final effect will reach drawing of the center line that makes pilot centering mould center, shaped device and wire drawing machine wire drawing drum dials three of points in line, and this straight line must be with to dial point be that the wire drawing drum tangent line at point of contact coincides to draw.
In the present invention, if the diameter of raw material hot rolling circle steel then can carry out the one or many tube reducing by wire drawing machine greater than the diameter of required product multiple-thread steel before entering Device for preventing rotation, do not influence moulding process of the present invention.
About 20 meters of cold group of technology for forming multiple-thread steel operation line lengths of the present invention, floor space is little, production technology is simple, processing ease is grasped, non-environmental-pollution, the tensile strength of the product multiple-thread steel of being produced improves more than 50% than mother metal, still has good plasticity, percentage elongation is not less than 5%, is used for the reinforced concrete member arrangement of reinforcement, can save amount of reinforcement 10～30%, multiple thread is non-to reverse shaping, be big helical pitch, fine pitch, rebar surface have continuously rough and uneven in surface uniformly degree, and section is a regular polygon, every bit on the section all participates in the axially loaded of reinforcing bar, fiber is successive, does not have stress to concentrate harm, and real is a kind of desirable new type steel.
Claims (3)
1, a kind of cold group of technology for forming multiple-thread steel, form by following steps:
(1), with hot rolling circle steel wire rod (or vertical bar) peeling, broken wash, neutralize, wash, go up powder;
(2), prick point, butt welding, enter the uncoiler uncoiling;
It is characterized in that:
(3), enter Device for preventing rotation;
(4), enter the pilot centering mould;
(5), add cooling-lubricant;
(6), enter multiple-thread steel and roll the rolling shaped device;
(7), through adapter to the drawing machine final capstan;
(8), the multiple-thread steel finished product is tied up, is checked and dispatch from the factory.
2,, it is characterized in that the supply mode of cooling-lubricant is penetrated the formula feed flow for dashing according to the described moulding process of claim 1.
3, according to the described moulding process of claim 1, it is characterized in that drawing of described pilot centering mould center, shaped device center line, wire drawing machine wire drawing drum dial three of points in line, this straight line must be with to dial point be that the wire drawing drum tangent line at point of contact coincides to draw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104016 CN1067835A (en) | 1991-06-19 | 1991-06-19 | Cold-drawing multi-head deformed steel bar forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104016 CN1067835A (en) | 1991-06-19 | 1991-06-19 | Cold-drawing multi-head deformed steel bar forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1067835A true CN1067835A (en) | 1993-01-13 |
Family
ID=4906385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91104016 Pending CN1067835A (en) | 1991-06-19 | 1991-06-19 | Cold-drawing multi-head deformed steel bar forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379517C (en) * | 2005-03-08 | 2008-04-09 | 昆明富景工贸有限公司 | Fast production technology for multiple thread steel |
| CN102233364A (en) * | 2010-04-21 | 2011-11-09 | 宝山钢铁股份有限公司 | Martensite air valve steel bar production method |
| CN110524192A (en) * | 2019-08-21 | 2019-12-03 | 何满潮 | The processing technology of NPR reinforcing bar bar |
-
1991
- 1991-06-19 CN CN 91104016 patent/CN1067835A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379517C (en) * | 2005-03-08 | 2008-04-09 | 昆明富景工贸有限公司 | Fast production technology for multiple thread steel |
| CN102233364A (en) * | 2010-04-21 | 2011-11-09 | 宝山钢铁股份有限公司 | Martensite air valve steel bar production method |
| CN102233364B (en) * | 2010-04-21 | 2013-09-04 | 宝山钢铁股份有限公司 | Martensite air valve steel bar production method |
| CN110524192A (en) * | 2019-08-21 | 2019-12-03 | 何满潮 | The processing technology of NPR reinforcing bar bar |
| US11596991B2 (en) | 2019-08-21 | 2023-03-07 | Min Xia | Processing method of NPR steel rebar rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |