CN100569405C

CN100569405C - Metal bar and tubing are abandoned the rust device

Info

Publication number: CN100569405C
Application number: CNB2005101205936A
Authority: CN
Inventors: 肖金安; 肖肖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-31
Filing date: 2005-12-31
Publication date: 2009-12-16
Anticipated expiration: 2025-12-31
Also published as: CN1830589A

Abstract

The present invention relates to a kind of metal bar and tubing and abandon the rust device, be characterized in: will need carrying out that the metal bar that eliminates rust and tubing has control reversing radially, in the other direction metal bar and tubing are reversed reduction again, or reserve part value of reversing or above positive twist collar number.Greatest differences, usefulness that the present invention utilizes metal base and its top layer to depend on oxide layer metallographic molecular structure performance have control to reverse and have the detorsion method of control, making gives up as hopeless in the positive detorsion of oxide layer on di-iron trioxide, tri-iron tetroxide and ferrous oxide or other metal base thoroughly separates with metal base, to reach the purpose of removing oxide layer.The present invention does not have pickling to the sour hydrogen-oxygen that metal base causes, and does not especially have acid to the severe contamination of air, water and shot-peening, sandblast, noise and dust pollution that polishing causes.

Description

Metal bar and tubing are abandoned the rust device

Technical field

The section bar that the invention belongs to a kind of metal bar, billot, pipe, blank or other geometric shape cross section gives a kind of metal bar and the tubing that carry out the surface cleaning rust cleaning earlier and abandons the rust device before drawing or finish rolling system.

Background technology

Present manufacturer and scientific research institution in industries such as the steel transformation of the way, securing member, metallic article, surface cleaning cleaning at steel before cold drawn or finish rolling system and the carrying out flaw detection still with sulfuric acid, hydrochloric acid, nitric acid, oxalic acid, phosphoric acid, hydrofluoric acid or mixed acid carry out surface cleaning, washing, in coat lubricating layer after closing, carry out drawing or rolling again.Acid cleaning process not only causes a large amount of wastes of resource, and the working environment of workers is poor, labour intensity is big, be absolutely unsafe.Especially environment is caused severe contamination.For solving this universal phenomenon, recently developed country adopts high-speed shot blasting, sandblast, technique for grinding and equipment that pieces of bar stock is carried out the surface cleaning cleaning with the domestic large-scale manufacturing enterprise that certain strength is arranged, because adopt high-speed shot blasting, sandblast, the costly cost of technique for grinding is huge and with a large amount of noises and dust pollution and that material surface is purified cleaning is not thorough, so also be not widely used, have only the producer of small part to adopt.Also do not have at present to purify effectively oxide layer in cleaning bar, billot, pipe, the blank surface table, not only do not have above-mentioned pollution, purification Removal Technology not only economic but also practical, that be fit to multiple geometric cross section steel to occur.

Summary of the invention

Technical problem to be solved by this invention provide a kind of economic, practical, convenient drawing, rolling, simple in structure, not only do not have sour hydrogen-oxygen that pickling causes steel, but also do not have acid mist to the pollution of air and the pollution of water, more there are not shot-peening, sandblast, high investment and the operating cost of polishing, with the noise that causes by it and dust pollution, operational administrative, also abandon the rust device more than simple metal bar of above-mentioned technology and tubing.

The present invention for the technical scheme of the problem that solves above-mentioned proposition is: will need the metal bar that eliminates rust and tubing to carry out reversing radially;

After described metal bar and tubing reverse, metal bar and tubing are reversed reduction in the other direction again;

The present invention utilizes greatest differences between metal base and the oxide layer metallographic molecular structure mechanical performance, bar, billot and metal materials such as pipe, blank is had reversing of control, in the twist process of control is arranged because the molecular structure that the good tensile strength of metal base and good percentage elongation and oxide layer are loosened forms huge contrast.At first being attached to the just numerous and confused and metal base of di-iron trioxide on the metal base and tri-iron tetroxide peels off, after the value of reversing that reaches regulation, show out good roughness especially, according to the requirement of product its metal base kind of reversing is reversed to the direction of reduction again, also being bonded in the metallic substrate surface slit a spot of ferrous oxide this moment is also shaken off totally, at this moment the foreign material of all except that metal base have not existed in its surface table, are all given it up by the metal base after the rotating.Especially the oxide layer in the pipe is that shot-peening, sandblast, polishing can't be realized, this continues to subtract pipe huge improvement beyond doubt of wall and tube reducing to needs, has greatly improved the drawing prerequisite.

The invention allows for a kind of metal material and abandon the rust device, it includes support, be installed in the reductor of upper part of the frame one side and utilize on the motor, speed reducer output shaft of belt transmitted power rotatable chuck is arranged, slide-bar, axle that one Telescopic is installed at the other end of pedestal are hollow, slide-bar by the reductor direction be equipped with speed reducer output shaft on identical chuck, two chucks can tighten workpiece simultaneously.

The present invention possesses following beneficial effect is arranged:

1, greatest differences, the usefulness of utilizing metal base and its top layer to depend on oxide layer metallographic molecular structure performance has control to reverse and have the detorsion method of control, di-iron trioxide, tri-iron tetroxide and ferrous oxide is given up as hopeless in the positive detorsion of metal base thoroughly separate with metal base.

2, the corrosion of cleaning bar, billot and pipe, blank is stablized, both can be used for purifying than semiworks to simple and reasonable, reliable working performance, can realize automatic continuous production raising output in big factory again.

3, can adopt the mechanical universal component of standard to assemble, a small amount of key problem in technology partially self manufacturing, install, spreading speed is fast.

4, do not have pickling to the sour hydrogen embrittlement that steel cause, especially do not have the severe contamination of acid, do not have shot-peening, sandblast yet air, water, noise and dust pollution that polishing causes, production environment obtains basic improvement.

5, with greatest differences between metallic molecule structure and the oxide layer in the equipment investment that has control oxide layer to be given up as hopeless in reversing to separate with metal base than shot-peening, sandblast, polishing much less, also save money than pickling, and be easy to management and maintenance, failure free time is few.

6, the residual value recovery value is bigger.

Description of drawings

Fig. 1 is the structural representation that metal bar of the present invention, metal pipe material are abandoned the rust device.

Fig. 2 abandons the structural representation of rust device for metal dish strip material of the present invention.

The specific embodiment

Below in conjunction with drawings and Examples the present invention is further described.

Metal bar of the present invention, metal pipe material are abandoned the rust device as shown in Figure 1, include support 1, upper part of the frame one side is installed on reduction box 2, with the motor that drives the reductor rotation, reductor is by being equipped with the rotatable chuck 3 of a chucking bar or other geometric shape material on the output shaft of support center position, the opposite side of support is installed on slide-bar 4, non-rotary chuck 5, spring 6.

The operation principle that metal bar of the present invention, metal pipe material are abandoned the rust device is: one will be reversed the metal material of abandoning rust, when reductor rotates, captured metal material and then reverses, reverse to the specified number of turns, detorsion to the corresponding number of turns, make the reduction of metal base interior tissue, when the material rotating, slide-bar has the function that axially seesaws owing to possessing, so slide-bar can shorten and extend, stop to take off after being inverted to the specified number of turns and abandon the metal material that becomes rusty and finish along with just changeing the counter-rotating and the shortening of material and extension, promptly announcement is abandoned rust technology and is finished.

Metal dish strip material 9 of the present invention is abandoned the rust device as shown in Figure 2, inverted, the front vertical or the horizontal wire drawing machine coiling is roused, the curve mechanism 11 of the two sets of curves wheel 7 of one level being installed and intersecting vertically, look the different perspective curve of material different designs, and design crooked method by the specification size, and reversing of control arranged earlier at the leading portion that does not enter curve wheel 7, so that the oxide layer of material 9 leading portions is discarded, be provided with a rotatable pay off rack 8 in the place ahead of curve wheel frame, this pay off rack 8 is not a direction feed routinely, but with carry out rightabout rotation, when work, abandon the rust machine host by rotation counterclockwise, 8 opposite spins of pay off rack, because pay off rack 8 is facing to the certain angle of curve mechanism 11 inclinations, material 9 can be laid out by the top of pay off rack 8, and cause certain value of reversing to enter chuck 11.1 in the curve mechanism 11, move until wire drawing machine 10 along two sets of curves wheel 7, front end at wire drawing machine 10 is provided with an active rotation chuck 10.1, material 9 when peeling off, the four sides is radially reversed, discard with profound ferrous oxide from being about to interstitial void, thereby obtain very perfect clean roughness, the formation of phosphating coat and saponification film has just had foundation like this, cold-drawing process can be carried out smoothly, and through the biscuit that radially reverses when cold drawn and the cold pier owing to be subjected to the effect of external force, self realizes bounce-back during the material plastic deformation, and not only change the direction of mould radial force, can prolong the service life of wire drawing die and cold pier mould like this, the lumber recovery of product and operation rate of machinery will increase.

Embodiment with regard to mild steel web and tubing and medium carbon steel web and tubing does some explanation below:

Get Φ 10 phosphorus content after 1 meter of first bar of 0.14% reverses 5 circles, utilize metallic spring counter-rotating 2 circles, control counter-rotating 2 circles, its tensile strength does not have variation, yield point, percentage elongation only than the former every index on the same root timber material 3～5% gap to be arranged.

Get Φ 20 phosphorus content after 1 meter in 0.20% seamless steel pipe reverses 4 circles, utilize bounce-back two circles, control detorsion 2 circles of metal, its tensile strength does not have variation, yield point, percentage elongation only than the every index on the same tubing 4～6% gap to be arranged.

Get Φ 10 phosphorus content 1 meter of first bar of 0.40%, after reversing 4 circles, utilize about metallic spring detorsion 2 circles, control detorsion 1.5 circles, its tensile strength does not have variation, yield point, percentage elongation only than the former index of material on mutually same first bar 5～7% gap to be arranged.

The steel pipe of getting Φ 32 phosphorus content 0.40% reverses 3 circles for 1 meter, utilizes metallic elastic counter-rotating 1.5 circles, control counter-rotating 1～2 circle, and its tensile strength does not have variation, yield point, percentage elongation only than same original index 6～8% gaps to be arranged,

Get 1 meter of Φ 25 grade of steel steel pipe and reverse 3 circles, utilize metallic elastic counter-rotating 1.5 circles, control counter-rotating 1～2 circle, its tensile strength does not have variation, yield point, percentage elongation only than the index of same original steel pipe 6～8% gaps to be arranged,

After getting 1 meter of Φ 25 copper pipe and reversing 5 circles, control counter-rotating 5 circles, the index of its tensile strength, yield point, percentage elongation and original copper pipe is variation not.

The foregoing description shows, metal material by reverse abandon rust after, derust with pickling or other method of derusting is compared, very little to the mechanical performance influence of material.

Table 1 is abandoned rust test front and back data contrast table for the foregoing description steel reverse:

The foregoing description all is to prepare for the cold drawn preceding surface cleaning of anacidity, all meet GB/T14292-1993 by the every index in cold drawn back, structural carbon steel and low-alloy structural steel, hot rolling bar steel technical conditions and GB.3087-1999, ISO.9329-1:1989, the specification requirement of seamless steel tubes for low and medium pressure.

The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.

Claims

1, a kind of metal bar and tubing are abandoned the rust device, it is characterized in that: include support (1), upper part of the frame one side is installed on reduction box (2) and drives the motor that reductor rotates, reductor is by being equipped with the chuck (3) of a chucking metal material on the output shaft of support center position, the opposite side of support is installed on slide-bar (4), non-rotary chuck (5), spring (6), described not rotary chuck is installed in the end of described slide-bar by reductor, when the forward and reverse rotation of reductor, slide-bar (4) is owing to possess the function that axially seesaws is arranged, so slide-bar (4) can shorten and extend along with the shortening of just changeing counter-rotating and material and extension.