A rolling process of pure titanium cold-rolled thin titanium strip with a width of 1250mm
A titanium strip and pure titanium technology, applied in the direction of metal rolling, etc., can solve the problem of unsatisfactory thickness, achieve high production efficiency, stabilize the rolling process, and reduce the rolling force of each pass
Active Publication Date: 2020-09-25
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, it is still too thick to meet the needs of some high-end products such as welded pipes and composite panels.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] A rolling process of a 1250mm width pure titanium cold-rolled thin titanium strip, specifically comprising the following steps:
[0021] Step (1). The chemical composition is Fe ≤ 0.20%, C ≤ 0.08%, N ≤ 0.03%, H ≤ 0.015%, O ≤ 0.018%, the total amount of other elements ≤ 0.4%, and the specification is TA1 of 180×1250×80000mm Type pure titanium slabs are heated to 850°C, rough rolled by a 4-high rolling mill, finish rolled by a steckel mill, and coiled to form a 4.5mm thick hot-rolled coil, and then processed by a hot continuous annealing and pickling unit to eliminate hot-rolled work hardening and make Uniform organization and removal of surface scale to make cold-rolled thin titanium strips;
[0022] Step (2). After annealing and pickling, the hot-rolled titanium coil with a width of 1250mm and a thickness of 4.5mm is rolled in a 20-roll cold rolling mill with a total reduction rate of 55.56% and a pass reduction rate of no more than 15%. 11 Each pass is reversibly roll...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
| width | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a rolling technology for a pure titanium cold-rolled thin titanium belt with the width being 1,250 mm. An annealed and acid-pickled hot-rolled TA1 pure titanium belt roll withthe width being 1,250 mm and the thickness being 4.5 mm is machined in the first rolling stroke of a 20-roller reversible cold rolling machine, the thickness of the hot-rolled annealed and acid-pickled titanium belt roll with the thickness being 4.5 mm reaches 2.0 mm through rolling with the reduction rate being 55.56%; then, a hot continuous annealing and acid pickling unit is used for annealing,and the annealed 2.0 mm titanium belt roll is rolled into the 0.3 mm thin titanium belt with the reduction rate being 85.0% in the second rolling stroke of the 20-roller reversible cold rolling machine. According to the rolling technology, through combination of the 20-roller cold rolling machine and a hot continuous annealing unit, two-rolling-stroke rolling of the 20-roller cold rolling machineis achieved, and the high-quality-requirement thin titanium belt with the thickness being 0.5 mm or below is produced with the low cost, short period and high efficiency.
Description
technical field [0001] The invention belongs to the technical field of pure titanium strip rolling process, and in particular relates to a rolling process of pure titanium cold-rolled thin titanium strip with a width of 1250 mm. Background technique [0002] Titanium is a metal material with low density, high specific strength, good corrosion resistance, good high temperature strength and excellent functions such as superconductivity, hydrogen storage and memory, but it has poor thermal conductivity, poor wear resistance, low elastic modulus, High chemical activity. Pure titanium has an alpha phase of a close-packed hexagonal lattice. GB / T3620 requires Fe≤0.20%, C≤0.08%, N≤0.03%, H≤0.015%, O≤0.018% and the sum of other elements≤0.4% for TA1 chemical composition. %. Due to its light specific gravity, high strength, good corrosion resistance, superconducting and memory functions, and beautiful surface, it is widely used in aerospace, national defense, petrochemical, marine d...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/22B21B3/00C22F1/18
CPCB21B1/22B21B3/00B21B2001/225C22F1/183
Inventor 梁雪刚范宇翔姜利庭申军平蒋随强石旭麟魏大宏
Owner GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD