CN1994606A - Straightening method and apparatus for small-diameter thin-wall metal tube - Google Patents
Straightening method and apparatus for small-diameter thin-wall metal tube Download PDFInfo
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- CN1994606A CN1994606A CN 200610172259 CN200610172259A CN1994606A CN 1994606 A CN1994606 A CN 1994606A CN 200610172259 CN200610172259 CN 200610172259 CN 200610172259 A CN200610172259 A CN 200610172259A CN 1994606 A CN1994606 A CN 1994606A
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- wall metal
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Abstract
The invention relates to a method for aligning the fine-diameter fine-wall metal tube, wherein the invention is characterized in that: it puts fine-diameter fine-wall metal tube into vacuum frame, heats it with thermal current, and functions drawing force at two ends to align it. And it can thermally align the high-flexibility high-strength fine-diameter fine-wall tube at vacuum condition, to align several tubes at one time, as TiNi memory alloy, CoCrMo alloy, etc, and the tube whose outer diameter is smaller than 3mm.
Description
Technical field
A kind of method for aligning of small-diameter thin-wall metal tube and device relate to a kind of high resiliency, the aligning method for shaping of the thin footpath of high-intensity metal thin-walled capillary tubes and the device of use thereof.
Background technology
The aligning of metal current tubing can utilize conventional methods such as multiple roll precision leveller, flexible aligning, stretcher leveling to finish.The workspace of multiple roll precision leveller is made up of a plurality of steel riders, workpiece is on one side around self axis rotation, advance on one side, process and tubing direction of advance are angled and have between the hyp roll repeatedly crooked, it is aligned gradually, and external diameter Φ 3mm is following, the aligning of the thin footpath light-wall pipe of wall thickness between 0.05～0.2mm but can not finish.Flexible aligning is by one section flexible hollow flexible pipe of driven by motor, make it around the central axis high speed rotating, the flexible pipe curvature-adjustable, tubing passes the flexible pipe centre bore and does the constant speed rotation with it after surface lubrication, after the inverse hyperbolic type bending of doing the convexity gradual change, promptly reach the aligning purpose.But for high strength, fine-radial thin-wall pipes that elasticity is big, not only flexible leveling effect is very little and brittle failure takes place easily.Stretcher leveling is to apply pulling force to workpiece to make it be stretched to whole end face upper stress to meet or exceed yield limit, remove pulling force after, the bullet amount of contracting equates or near equating, this moment, workpiece became straight or curvature reduces, thereby obtained correcting.Because titanium alloy elastic is replied big, and some titanium alloy (as the TiNi alloy) has SME, and simple stretcher leveling can not achieve the goal.
Summary of the invention
The objective of the invention is deficiency at above-mentioned prior art existence, propose a kind ofly can effectively prevent or reduce tubing when thermal straightening and element generation chemical reactions such as H, O, pollute tube surfaces, influence final mechanical property, the method for aligning and the device thereof of the small-diameter thin-wall metal tube that the aligning typing is effective.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method for aligning of small-diameter thin-wall metal tube, it is characterized in that its aligning process be with small-diameter thin-wall metal tube in the housing of vacuum state, after small-diameter thin-wall metal tube applied heating current and be heated, impose at two ends again that tensile force aligns.
The method for aligning of a kind of small-diameter thin-wall metal tube of the present invention is characterized in that Electric heating that its aligning process adopts makes it from body heating carrying out tension straingtening for workpiece two ends electric current in addition.
A kind of straightener of small-diameter thin-wall metal tube is characterized in that its structure composition comprises:
Vaccum case-this housing be one at one end vertically be divided into two sections, by flange coupling horizontal type shell together, on housing, be provided with vacuum-pumping tube;
Housing seal assembly-this assembly is positioned at the housing horizontal end, is one to pass housing with outer wall and with affixed tubular annular seal space be arranged in the airtight and watertight padding in chamber and withhold seal pressure cap composition affixed with the annular seal space bolt on filler;
Thick stick-this circle thick stick is two sections to circle, and one section is the round thick stick of transmission for fixing circle thick stick, one section, and coaxial with vaccum case respectively, level is positioned at the vaccum case two-piece housing, and the one end passes housing respectively, and an end termination that is positioned at housing is provided with Workpiece clamping head; Wherein the transmission circle thick stick annular seal space that passes housing one end is sealed by it, and fixing circle thick stick passes housing and frame is affixed;
Turn-screw-this leading screw is vertically fixed on the frame, and an end connects with transmission circle thick stick by converter.
The straightener of a kind of small-diameter thin-wall metal tube of the present invention is characterized in that being provided with observation window on housing.
Method of the present invention is carried out the tension force thermal straightening to high resiliency, high-intensity fine radial thin-wall pipes under vacuum state.Owing to be under vacuum state, to implement aligning, prevent or reduced tubing when thermal straightening and element generation chemical reactions such as H, O, pollute tube surfaces, influence final mechanical property; Adopt Electric heating to give the workpiece two ends in addition suitable electric current (voltage), it is generated heat from body, apply certain tensile force at the workpiece two ends then.Apply electric current by giving by strong workpiece, it is softening that it is heated up, and imposes tension force at length direction simultaneously, to reach the aligning purpose.Can realize comprising that titanium alloy, TiNi marmem, CoCrMo alloy etc. are high-strength, high-elastic, room temperature is hard and crisp, the typing of the aligning of the metal fine-radial thin-wall pipes of the easy oxidation of high temperature, and the aligning back is little to the material property influence, aligning back tubing glacing flatness can reach below the 0.5mm/m, has that equipment is simple, a convenient and flexible operation, characteristics such as economical and practical.
The present invention can realize various metal capillaries such as once many (root) aligning intensity height, titanium alloy that elasticity is big, TiNi marmem, CoCrMo alloy, stainless steel, also can be used for the aligning of the following above-mentioned metal filament material of external diameter Φ 3mm, have characteristics such as equipment is simple, convenient and practical, economical and efficient.
Description of drawings
Fig. 1 is the structural representation of device of the present invention.
The specific embodiment
A kind of method for aligning of small-diameter thin-wall metal tube, its aligning process be with small-diameter thin-wall metal tube in the housing of vacuum state, after small-diameter thin-wall metal tube applied heating current and be heated, impose at two ends again that tensile force aligns.The Electric heating that its aligning process adopts makes it from body heating carrying out tension straingtening for workpiece two ends electric current in addition.
Below in conjunction with accompanying drawing method of the present invention and device are further described.
A kind of straightener of small-diameter thin-wall metal tube, its structure is formed and is comprised: vaccum case 1-this housing be one at one end vertically be divided into two sections, by flange coupling horizontal type shell together, on housing, be provided with vacuum-pumping tube 2; Housing seal assembly-this assembly is positioned at the housing horizontal end, is one to pass housing with outer wall and with affixed tubular annular seal space 3 be arranged in the airtight and watertight padding 4 in chamber and withhold on filler with the affixed seal pressure cap 5 of annular seal space bolt and form; Thick stick-this circle thick stick is two sections to circle, and one section is the round thick stick 7 of transmission for fixing circle thick stick 6, one section, and coaxial with vaccum case respectively, level is positioned at the vaccum case two-piece housing, and the one end passes housing respectively, and an end termination that is positioned at housing is provided with Workpiece clamping head 8; Wherein the transmission circle thick stick annular seal space that passes housing one end is sealed by it, and fixing circle thick stick passes housing and frame 9 is affixed; Turn-screw 10-this leading screw is vertically fixed on the frame, and an end connects with transmission circle thick stick by converter 11.
Revolve 45 degree positions in the middle of the vaccum case on 1/2 place's level one observation window 12 is set, settle a pore to be connected with Pressure gauge 13 in shell end so that detect vacuum in the housing, vavuum pump 14 is for providing vacuum state in the housing, transformer 15 and silicon-controlled voltage regulation device 16 are united to Workpiece clamping head provides heating current, the slick and sly matter of circle thick stick any surface finish is hard, adopt movable sealing to cooperate with housing, circle thick stick one end is fixedlyed connected with Workpiece clamping head, the other end is fixedlyed connected with turn-screw, when driving turn-screw, moves by motor 17, through the Workpiece clamping head that drives to of exertin, drive is moved radially by strong capillary and reaches the aligning purpose.
Embodiment
Vaccum case is opened, Φ 2mm * 0.15 titanium alloy capillary tubes 18 is fixed on the Workpiece clamping head, close vaccum case, start vavuum pump, observe Pressure gauge, after treating that vacuum reaches requirement (1Pa is following), start the silicon-controlled voltage regulation device, apply electric current gradually to 50A (voltage 40V) for the tubing two ends, (it is little red that the surface becomes) starts stepless speed-change motor when adding heat request when reaching, regulate rotating speed of motor and make it to drive the radially mobile 1-10mm of leading screw (tubing longitudinal extension amount is less than 2%), leading screw drives the circle thick stick and drives to Workpiece clamping head, Workpiece clamping head drives capillary tubes thereupon and radially slowly moves, during this time at any time by observation window inspection aligning situation. aligning is closed the silicon-controlled voltage regulation device after finishing, treat the tubing temperature back (about 10-20 minute) that descends, open the vacuum valve venting, open the capillary tubes that the vaccum case taking-up aligned and get final product.
Claims (4)
1. the method for aligning of a small-diameter thin-wall metal tube, it is characterized in that its aligning process be with small-diameter thin-wall metal tube in the housing of vacuum state, after small-diameter thin-wall metal tube applied heating current and be heated, impose at two ends again that tensile force aligns.
2. according to the method for aligning of reason claim 1 described a kind of small-diameter thin-wall metal tube, it is characterized in that Electric heating that its aligning process adopts makes it from body heating carrying out tension straingtening for workpiece two ends electric current in addition.
3. the straightener of a small-diameter thin-wall metal tube is characterized in that its structure is formed to comprise:
Vaccum case-this housing be one at one end vertically be divided into two sections, by flange coupling horizontal type shell together, on housing, be provided with vacuum-pumping tube;
Housing seal assembly-this assembly is positioned at the housing horizontal end, is one to pass housing with outer wall and with affixed tubular annular seal space be arranged in the airtight and watertight padding in chamber and withhold seal pressure cap composition affixed with the annular seal space bolt on filler;
Thick stick-this circle thick stick is two sections to circle, and one section is the round thick stick of transmission for fixing circle thick stick, one section, and coaxial with vaccum case respectively, level is positioned at the vaccum case two-piece housing, and the one end passes housing respectively, and an end termination that is positioned at housing is provided with Workpiece clamping head; Wherein the transmission circle thick stick annular seal space that passes housing one end is sealed by it, and fixing circle thick stick passes housing and frame is affixed;
Turn-screw-this leading screw is vertically fixed on the frame, and an end connects with transmission circle thick stick by converter.
4. the straightener of a kind of small-diameter thin-wall metal tube according to claim 3 is characterized in that being provided with observation window on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610172259XA CN100457310C (en) | 2006-12-30 | 2006-12-30 | Straightening method and apparatus for small-diameter thin-wall metal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610172259XA CN100457310C (en) | 2006-12-30 | 2006-12-30 | Straightening method and apparatus for small-diameter thin-wall metal tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1994606A true CN1994606A (en) | 2007-07-11 |
| CN100457310C CN100457310C (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610172259XA Active CN100457310C (en) | 2006-12-30 | 2006-12-30 | Straightening method and apparatus for small-diameter thin-wall metal tube |
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| CN (1) | CN100457310C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542705C (en) * | 2007-12-06 | 2009-09-23 | 上海交通大学 | Full-automatic on-line method for gag press straightening jackrod |
| CN112496094A (en) * | 2020-12-15 | 2021-03-16 | 西部新锆核材料科技有限公司 | Straightening device and method for zirconium alloy thin-walled pipe |
| CN115976438A (en) * | 2022-12-28 | 2023-04-18 | 西安圣泰金属材料有限公司 | Annealing and straightening equipment and annealing and straightening method for titanium alloy bar for ultrasonic scalpel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028675A (en) * | 2012-11-26 | 2013-04-10 | 南京航空航天大学 | High temperature stress relaxation straightening method of titanium alloy wire and device thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2564484B2 (en) * | 1986-03-18 | 1996-12-18 | 三菱マテリアル株式会社 | Method for correcting deformation of cemented carbide member |
| JPH02258115A (en) * | 1989-03-31 | 1990-10-18 | Mitsubishi Metal Corp | Method for straightening titanium alloy plate |
| JPH0890074A (en) * | 1994-09-20 | 1996-04-09 | Nippon Steel Corp | Method for straightening titanium and titanium alloy wire |
| CN2335719Y (en) * | 1998-03-13 | 1999-09-01 | 西北有色金属研究院 | Metal capillary creep straightening device |
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2006
- 2006-12-30 CN CNB200610172259XA patent/CN100457310C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542705C (en) * | 2007-12-06 | 2009-09-23 | 上海交通大学 | Full-automatic on-line method for gag press straightening jackrod |
| CN112496094A (en) * | 2020-12-15 | 2021-03-16 | 西部新锆核材料科技有限公司 | Straightening device and method for zirconium alloy thin-walled pipe |
| CN112496094B (en) * | 2020-12-15 | 2023-03-17 | 西部新锆核材料科技有限公司 | Straightening device and method for zirconium alloy thin-walled pipe |
| CN115976438A (en) * | 2022-12-28 | 2023-04-18 | 西安圣泰金属材料有限公司 | Annealing and straightening equipment and annealing and straightening method for titanium alloy bar for ultrasonic scalpel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100457310C (en) | 2009-02-04 |
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