CN108817085A - A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile - Google Patents

A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile Download PDF

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Publication number
CN108817085A
CN108817085A CN201810614045.6A CN201810614045A CN108817085A CN 108817085 A CN108817085 A CN 108817085A CN 201810614045 A CN201810614045 A CN 201810614045A CN 108817085 A CN108817085 A CN 108817085A
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CN
China
Prior art keywords
pass
hexagon
blank
rolled
sent
Prior art date
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Pending
Application number
CN201810614045.6A
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Chinese (zh)
Inventor
刘强博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoji Tiangang Titanium Industry Co Ltd
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Baoji Tiangang Titanium Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoji Tiangang Titanium Industry Co Ltd filed Critical Baoji Tiangang Titanium Industry Co Ltd
Priority to CN201810614045.6A priority Critical patent/CN108817085A/en
Publication of CN108817085A publication Critical patent/CN108817085A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/0805Flat bars, i.e. having a substantially rectangular cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B3/00Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences Rolling of aluminium, copper, zinc or other non-ferrous metals

Abstract

A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile, pass schedule includes oval groove, positive diamond pass, closed box groove, special hexagon pass and rectangle last groove;Special hexagon pass be up and down, symmetrical hexagon pass, and upper and lower side is to pass central protuberance and symmetrical arc-shaped.Milling method:The square blank for forming required specification is back and forth rolled after circular blank is heated by oval pass, positive diamond pass;Square blank is sent into the rectangular billet of specification needed for closed box groove back and forth rolls formation;It is sent into the hexagon blank that special hexagon pass is rolled into required specification and top and bottom indent, two sides evagination after rectangular billet is rotated by 90 °, then is sent into the rectangle finished section bar that rectangle last groove is rolled into required specification after the hexagon blank is rotated by 90 °.The present invention solves the problems, such as that dimensional uniformity is poor, production efficiency is low, utilization rate of raw materials is low in prior art batch production.

Description

A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile
Technical field
The invention belongs to titanium or titanium alloy shape extrusion technical fields, and in particular to a kind of rolling rectangular section titanium and titanium close The pass schedule and milling method of metal type material.
Background technique
Titanium or titanium alloy profile in rectangular section in prior art, small dimension are mainly made of sheet shearing, big specification It is main using forging be made.In batch production, dimensional uniformity is poor, and production efficiency is low, at high cost, utilization rate of raw materials It is low.
The pass structure that titanium or titanium alloy profile leader pass in rectangular section is rolled in prior art is hexagon pass, should Hexagon green shape after groove rolling may be molded to rectangular section titanium and titanium conjunction by the rolling of rectangle last groove Metal type material.Have a disadvantage in that the left and right two sides of the rectangle finished section bar of the groove rolling bulges, and longitudinal four seamed edges are Arc chord angle does not meet strict demand of the special user to finished form and size.
Summary of the invention
The present invention provides a kind of pass schedule and milling method for rolling rectangular section titanium or titanium alloy profile, solves existing Having technology, dimensional uniformity is poor in batch production, and production efficiency is low, the low problem of utilization rate of raw materials, and meets special use Strict demand of the family to finished form and size.
The technical scheme adopted by the invention is that:A kind of pass schedule rolling rectangular section titanium or titanium alloy profile, institute Stating pass schedule includes oval groove, positive diamond pass, closed box groove, special hexagon pass and rectangle last groove;It is described Special hexagon pass is for above and below, symmetrical hexagon pass, and the upper and lower side of the hexagon pass is into pass Cardiac prominence rises and symmetrically arc-shaped.
The arc-shaped camber A is 0.1~1mm.
The width L of the hexagon pass is bigger, and the value of camber A is bigger, and the height H of the hexagon pass is bigger, The value of camber A is smaller.
A kind of method one using pass schedule rolling rectangular section titanium or titanium alloy profile:
The first step will be sent into oval pass first and roll out oval blank after round titanium or titanium alloy blank heating, Then oval blank is sent into positive diamond pass and rolls out square blank, then square blank is sent into oval pass and is rolled Oval blank is produced, and oval pass and positive diamond pass are gradually reduced, and and so on roll, until being rolled into required rule The square blank of lattice;
The square blank that the first step is rolled into is sent into closed box groove and back and forth rolled by second step, and closed box groove is gradually It reduces, until being rolled into the rectangular billet of required specification;
Third step, the rectangular billet that second step is rolled into are sent into needed for special hexagon pass is rolled into after being rotated by 90 ° The hexagon blank of specification and top and bottom indent, two sides evagination, then be sent into after the hexagon blank is rotated by 90 ° rectangle at Sample wells type is rolled into the rectangle finished section bar of required specification.
A kind of method two using pass schedule rolling rectangular section titanium or titanium alloy profile:
The first step will be sequentially sent to the first closed box groove after rectangular titanium or titanium alloy blank heating, the second closed box groove rolls The rectangular billet I of specification needed for being formed after system;
Second step is sent into the first special hexagon groove rolling after being rotated by 90 ° the rectangular billet I that the first step is rolled into Third rectangular opening is sent at the hexagon blank of required specification and top and bottom indent, two sides evagination, then by the hexagon blank Type is rolled into the rectangular billet II of required specification;
Third step, then be sent into after rectangular billet II is rotated by 90 ° the second special hexagon pass be rolled into required specification and The hexagon blank of top and bottom indent, two sides evagination, then rectangle last groove is sent into after the hexagon blank is rotated by 90 ° It is rolled into the rectangle finished section bar of required specification.
Compared to the prior art, the left and right two sides for the rectangle finished section bar that the present invention rolls is smooth, does not bulge, and vertical It is rectangular to four seamed edges, meet strict demand of the special user to finished form and size.And the utilization rate height of raw material, High in machining efficiency, the consistency of trimmed size size is good, and production cost is low.
Detailed description of the invention
Fig. 1 is pass schedule structural schematic diagram of the present invention;
Fig. 2 is the special hexagon pass structural schematic diagram of the present invention;
Fig. 3 is the first milling method pass schedule structural schematic diagram of the invention;
Fig. 4 is second of milling method pass schedule structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing 1,2,3,4 and specific embodiment the present invention is described in detail.
A kind of pass schedule rolling rectangular section titanium or titanium alloy profile, the pass schedule include oval groove, just Diamond pass, closed box groove, special hexagon pass and rectangle last groove;The special hexagon pass is for above and below, left and right Symmetrical hexagon pass, and the upper and lower side of the hexagon pass is to pass central protuberance and symmetrically arc-shaped 19。
Described arc-shaped 19 camber A is 0.1~1mm.The width L of the hexagon pass is bigger, and the value of camber A is got over Greatly, the height H of the hexagon pass is bigger, and the value of camber A is smaller.
Embodiment 1:The method for rolling rectangular section titanium or titanium alloy profile as raw material using round titanium or titanium alloy blank.
The first step will be sent into the ellipse that specification is 80 × 21mm first after φ 65mm circle titanium or titanium alloy blank heating Rolling, rolls out 47 × 80mm ellipse blank in pass 1, and it is 47.5mm that 47 × 80mm ellipse blank, which is then sent into specification, Positive diamond hole 2 in rolling, roll out 47.5 × 47.5mm stock of square;47.5 × 47.5mm stock of square is sent into specification again For rolling in the oval pass 3 of 70 × 17.5mm, 40 × 70mm ellipse blank is rolled out, by 40 × 70mm ellipse blank It is sent into rolling in the positive diamond pass 4 that specification is 38.2 × 38.2mm, rolls out 38.2 × 38.2mm stock of square;By 38.2 × 38.2mm stock of square is sent into rolling in the oval pass 5 that specification is 58 × 12.5mm, rolls out 30 × 58mm ellipse base 30 × 58mm ellipse blank is sent into rolling in the positive diamond pass 6 that specification is 32 × 32mm, rolls out the 32 × side 32mm by material Shape blank;32 × 32mm stock of square is sent into rolling in the oval pass 7 that specification is 46 × 9.4mm, roll out 46 × 21 × 46mm ellipse blank is sent into rolling in the positive diamond pass 8 that specification is 27 × 27mm, rolling by 21mm ellipse blank 27 × 27mm square blank out;
27 × 27mm square blank is sent into rolling in the closed box groove 9 that specification is 8 × 60mm, rolled out by second step 18 × 32mm rectangular billet, then 18 × 32mm semi-finished product rectangular billet is sent into the closed box groove 10 that specification is 2 × 60mm and is rolled System, rolls out the rectangular billet of 12 × 40mm;
Third step, after 12 × 40mm rectangular billet that second step is rolled into is rotated by 90 ° be sent into specification be L14 × Rolling in the special hexagon pass 11 of Lb15.5 × Hb4.5mm, and special hexagon camber A is 0.3mm, being rolled into specification is The hexagon blank of L14 × H22mm and top and bottom indent, two sides evagination, then be sent into after the hexagon blank is rotated by 90 ° Specification is rolling in the rectangle last groove 12 of 5.5 × 60mm, is rolled into the rectangle finished section bar that specification is 12.7 × 25.4mm.
Embodiment 2:The method for rolling rectangular section titanium or titanium alloy profile as raw material using rectangular titanium or titanium alloy blank.
The first step will be sent into the first rectangle that specification is 20 × 80mm after the rectangular titanium or titanium alloy blank heating of 55 × 55mm Rolling in pass 13 is rolled into 48 × 63mm rectangular billet, then it is 10 × 80mm's that 48 × 63mm rectangular billet, which is sent into specification, Rolling in second closed box groove 14 is rolled into the rectangular billet I that specification is 32 × 70mm;
Second step, it is 38 × Hb of L35 × Lb that specification is sent into after the rectangular billet I that the first step is rolled into is rotated by 90 ° Rolling in the special hexagon pass of the first of 20mm 15, and special hexagon camber A is 1mm, be rolled into specification be L35 × The hexagon blank of H50mm and top and bottom indent, two sides evagination, then it is 8 × 70mm's that the hexagon blank, which is sent into specification, Rolling in third closed box groove 16 is rolled into the rectangular billet II that specification is 25 × 55mm;
Third step, after the rectangular billet II that second step is rolled into is rotated by 90 ° be sent into specification be L26 × Lb28 × Rolling in the special hexagon pass of the second of Hb20mm 17, and special hexagon camber A is 0.5mm, be rolled into specification be L26 × The hexagon blank of H45mm and top and bottom indent, two sides evagination, then be sent into specification after the hexagon blank is rotated by 90 ° and be Rolling in the rectangle last groove 18 of 11 × 70mm is rolled into the rectangle finished section bar that specification is 23 × 50mm.
The present invention is made of rolling mill practice, has broken traditional manufacturing method cut out, forged, square is rolled on milling train Tee section profile improves processing efficiency in batch production, the utilization rate for reducing material head when cutting out, improving raw material, Production cost is reduced, while controlling the consistency of trimmed size size, improves section quality.
The present invention by by the trench bottom (the upper and lower side of hexagon pass) of hexagon pass to pass central protuberance, shape Arc-shaped the 19 of grooving bottom protrusion, the hexagon green shape upper and lower surface after rolling is inwardly recessed, left and right two sides convex Out.When the green shape, which is rotated by 90 °, to be rolled into closed box groove, mainly by squeezing the upper and lower surface outwardly protruded, So that left and right two is faced out extension and realizes molding.Since left and right two sides is inwardly recessed, left and right two faces out extension and fills and leads up just Existing female parts, and the seamed edge of existing longitudinal direction four substantially will not deformation occurs, therefore the rectangle finished section bar rolled Left and right two sides it is smooth, do not bulge, and longitudinal four seamed edges are rectangular, meet special user to finished form and size Strict demand.And the utilization rate of raw material is high, high in machining efficiency, the consistency of trimmed size size is good, and production cost is low.
Above-described embodiment, only presently preferred embodiments of the present invention, the practical range being not intended to limit the invention, thus it is all with The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.

Claims (5)

1. a kind of pass schedule for rolling rectangular section titanium or titanium alloy profile, it is characterised in that:The pass schedule includes ellipse Circular hole, positive diamond pass, closed box groove, special hexagon pass and rectangle last groove;The special hexagon pass is Up and down, symmetrical hexagon pass, and the upper and lower side of the hexagon pass be to pass central protuberance and symmetrically Arc-shaped (19).
2. a kind of pass schedule for rolling rectangular section titanium or titanium alloy profile according to claim 1, it is characterised in that: The camber A of arc-shaped (19) is 0.1~1mm.
3. a kind of pass schedule for rolling rectangular section titanium or titanium alloy profile according to claim 2, it is characterised in that: The width L of the special hexagon pass is bigger, and the value of camber A is bigger, and the height H of the special hexagon pass is bigger, The value of camber A is smaller.
4. a kind of method using the rolling rectangular section titanium or titanium alloy profile of pass schedule described in claim 1, feature exist In:
The first step will be sent into oval pass first and roll out oval blank, then after round titanium or titanium alloy blank heating Oval blank is sent into positive diamond pass and rolls out square blank, then square blank is sent into oval pass and is rolled out Oval blank, and oval pass and positive diamond pass are gradually reduced, and and so on roll, until being rolled into required specification Square blank;
The square blank that the first step is rolled into is sent into closed box groove and back and forth rolled by second step, and closed box groove is gradually reduced, Until being rolled into the rectangular billet of required specification;
Third step, the rectangular billet that second step is rolled into are sent into special hexagon pass and are rolled into required specification after being rotated by 90 ° And the hexagon blank of top and bottom indent, two sides evagination, then rectangle finished hole is sent into after the hexagon blank is rotated by 90 ° Type is rolled into the rectangle finished section bar of required specification.
5. a kind of method using the rolling rectangular section titanium or titanium alloy profile of pass schedule described in claim 1, feature exist In:
The first step, after the first closed box groove, the rolling of the second closed box groove will be sequentially sent to after rectangular titanium or titanium alloy blank heating The rectangular billet I of specification needed for being formed;
Second step is sent into the first special hexagon pass and is rolled into institute after being rotated by 90 ° the rectangular billet I that the first step is rolled into The hexagon blank of specification and top and bottom indent, two sides evagination is needed, then hexagon blank feeding third closed box groove is rolled The rectangular billet II of required specification is made;
Third step, then be sent into the second special hexagon pass after rectangular billet II is rotated by 90 ° and be rolled into required specification and up and down The hexagon blank of face indent, two sides evagination, then the rolling of rectangle last groove is sent into after the hexagon blank is rotated by 90 ° At the rectangle finished section bar of required specification.
CN201810614045.6A 2018-06-14 2018-06-14 A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile Pending CN108817085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810614045.6A CN108817085A (en) 2018-06-14 2018-06-14 A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810614045.6A CN108817085A (en) 2018-06-14 2018-06-14 A kind of pass schedule and milling method rolling rectangular section titanium or titanium alloy profile

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Publication Number Publication Date
CN108817085A true CN108817085A (en) 2018-11-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110560481A (en) * 2019-09-26 2019-12-13 武汉钢铁集团鄂城钢铁有限责任公司 High-precision right-angle flat steel continuous rolling process method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110560481A (en) * 2019-09-26 2019-12-13 武汉钢铁集团鄂城钢铁有限责任公司 High-precision right-angle flat steel continuous rolling process method

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