CN108239693A - A kind of processing technology of stability strip - Google Patents
A kind of processing technology of stability strip Download PDFInfo
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- CN108239693A CN108239693A CN201810020575.8A CN201810020575A CN108239693A CN 108239693 A CN108239693 A CN 108239693A CN 201810020575 A CN201810020575 A CN 201810020575A CN 108239693 A CN108239693 A CN 108239693A
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- temperature
- annealing furnace
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- roll bending
- annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-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
- B21B1/22—Metal-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 plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0021—Cutting or shearing the product in the rolling direction
Abstract
The present invention relates to a kind of processing technologys of stability strip, include the following steps：Choose the hot-rolled coil that the trade mark is SCM435；It will carry out first time longitudinal shearing slitting；The hot-rolled coil of first time longitudinal shearing slitting is subjected to soft annealing by annealing furnace/ammonia destruction furnace, soft annealing roll bending is made；Soft annealing roll bending is subjected to pickling, and pickling roll bending is made；Pickling roll bending is rolled, and rolling roll bending is made；Rolling roll bending is subjected to spheroidizing by annealing furnace/ammonia destruction furnace, spheroidizing roll bending is made；Spheroidizing roll bending is subjected to finish rolling, and finish rolling roll bending is made；Finish rolling roll bending is subjected to second of longitudinal shearing slitting, and slitting roll bending is made by small banding machine；Packaging and storage carries out packing packaging using baling press to slitting roll bending.The beneficial effects of the invention are as follows：Can stabilized product quality, raise labour productivity.
Description
Technical field
The present invention relates to strip production and processing technical field more particularly to a kind of processing technologys of stability strip.
Background technology
It is well known that strip is a kind of narrow and long steel plate in order to adapt to different industrial department needs and production.It is wide
Degree is generally within 300mm, but with economic development, and there is no limit for width.Strip is supplied in rolls, have dimensional accuracy it is high,
Surface quality is good, it is easy to process, save the advantages that material, be widely used in production welded still pipe, make the blank of cold-rolled forming section, manufacture
Cycle frame, wheel rim, clip, washer, spring leaf, saw blade and blade, the fields such as the sole and steel toes of Labor protection shoes.
It is influenced by the processing technology of current strip, the strip quality produced is not sufficiently stable, in production process
In easily there is defective work, lead to entire production efficiency than relatively low.
Invention content
The technical problems to be solved by the invention be to provide it is a kind of being capable of stabilized product quality, the band raised labour productivity
The processing technology of steel.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of processing technology of stability strip, including such as
Lower step：
Step 1: it prepares raw material, choose the hot-rolled coil that the trade mark is SCM435；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, it is warming up to 400 DEG C at full speed first, by annealing furnace, and 1h to 5h is kept the temperature after being warming up to 400 DEG C, secondly,
After annealing furnace keeps the temperature 1h to 5h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 1h to 6h, and be warming up to 600
0.5h to 4h is kept the temperature after DEG C, again, after annealing furnace keeps the temperature 0.5h to 4h at a temperature of 600 DEG C, by annealing furnace in 1h to 5h
Be warming up to 690 DEG C, and 0.5h to 4h kept the temperature after being warming up to 690 DEG C, the 4th, annealing furnace keep the temperature 0.5h at a temperature of 690 DEG C
To 4h, annealing furnace is warming up to 710 DEG C to 730 DEG C in 1h to 5h, and 10h is kept the temperature extremely after being warming up to 710 DEG C to 730 DEG C
18h, the 5th, after annealing furnace keeps the temperature 10h to 18h at a temperature of 710 DEG C to 730 DEG C, it will annealing by the way of furnace cooling
Furnace cooling but 4h to 8h, the 6th, after 4h to 8h is cooled down to annealing furnace by the way of furnace cooling, annealing furnace is carried out to change cover wind
It is cold, and the temperature of annealing furnace is down to 280 DEG C, the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, will move back
The temperature of stove is down to 80 DEG C by 280 DEG C, finally, comes out of the stove, and soft annealing roll bending is made；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, is warming up to 400 DEG C at full speed first, by annealing furnace, and 1h to 5h is kept the temperature after being warming up to 400 DEG C,
After secondary, annealing furnace keeps the temperature 1h to 5h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 1h to 6h, and be warming up to
0.5h to 4h is kept the temperature after 640 DEG C, again, after annealing furnace keeps the temperature 0.5h to 4h at a temperature of 640 DEG C, by annealing furnace in 1h to 5h
It is inside warming up to 730 DEG C, and 0.5h to 4h is kept the temperature after being warming up to 730 DEG C, the 4th, annealing furnace keeps the temperature at a temperature of 730 DEG C
After 0.5h to 4h, annealing furnace is warming up to 740 DEG C to 760 DEG C in 0.5h to 2h, and protected after being warming up to 740 DEG C to 760 DEG C
Warm 10h to 16h, the 5th, after annealing furnace keeps the temperature 10h to 16h at a temperature of 740 DEG C to 760 DEG C, by the way of furnace cooling
The temperature of annealing furnace is down to 550 DEG C to 600 DEG C, the 6th, the temperature of annealing furnace is being down to 550 by the way of furnace cooling
DEG C to after 600 DEG C, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, the temperature of annealing furnace
After being down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove, obtained nodularization is moved back
Fiery roll bending；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
The beneficial effects of the invention are as follows：By to hot-rolled coil carry out soft annealing when, by entire soft annealing process
Be divided into several stages, and effectively control the heating-up time in each stage, soaking time and each stage temperature and
When carrying out spheroidizing to rolling roll bending, entire spheroidizing process is divided into several stages, and is effectively controlled each
Heating-up time, soaking time and the temperature in each stage in a stage, so that the product quality produced is stablized, product
Qualification rate gets a promotion, so as to further improve labor productivity.
Based on the above technical solution, the present invention can also be improved as follows.
Further, in the step 3, in soft annealing, annealing furnace is warming up to 400 DEG C, and be warming up at full speed
1.5h to 3h is kept the temperature after 400 DEG C；After annealing furnace keeps the temperature 1.5h to 3h at a temperature of 400 DEG C, annealing furnace is risen in 2h to 4h
Temperature keeps the temperature 0.6h to 2h to 600 DEG C after being warming up to 600 DEG C；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 600 DEG C,
Annealing furnace in 1.5h to 3h is warming up to 690 DEG C, and 0.6h to 2h is kept the temperature after being warming up to 690 DEG C；Annealing furnace is at 690 DEG C
At a temperature of heat preservation 0.6h to 2h after, annealing furnace is warming up to 710 DEG C to 730 DEG C in 1.5h to 3h, and be warming up to 710 DEG C extremely
11h to 16h is kept the temperature after 730 DEG C；After annealing furnace keeps the temperature 11h to 16h at a temperature of 710 DEG C to 730 DEG C, using furnace cooling
Annealing furnace is cooled down 4.5h to 7.2h by mode.
Further, in soft annealing, annealing furnace is warming up to 400 DEG C, and keep the temperature 1.8h after being warming up to 400 DEG C at full speed
To 2.4h；After annealing furnace keeps the temperature 1.8h to 2.4h at a temperature of 400 DEG C, annealing furnace is warming up to 600 in 2.8h to 3.4h
DEG C, and 0.8h to 1.2h is kept the temperature after being warming up to 600 DEG C；After annealing furnace keeps the temperature 0.8h to 1.2h at a temperature of 600 DEG C, it will move back
Stove is warming up to 690 DEG C in 1.8h to 2.4h, and 0.8h to 1.2h is kept the temperature after being warming up to 690 DEG C；Annealing furnace is at 690 DEG C
At a temperature of heat preservation 0.8h to 1.2h after, annealing furnace is warming up to 710 DEG C to 730 DEG C in 1.8h to 2.4h, and be warming up to 710
DEG C to keeping the temperature 11.2h to 15.6h after 730 DEG C；After annealing furnace keeps the temperature 11.2h to 15.6h at a temperature of 710 DEG C to 730 DEG C, adopt
Annealing furnace is cooled down into 5.2h to 6.4h with the mode of furnace cooling.
Further, it in soft annealing, needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；
In entire heating and insulating process, the difference of actual temperature value and process warm angle value is less than 15 DEG C.
It is using above-mentioned further advantageous effect：It can effectively ensure the stability of soft annealing roll bending quality.
It further,, need to be first with metallographic microscope to the Oxygen potential of soft annealing roll bending before pickling is carried out in step 4
It is detected, and put into qualified soft annealing roll bending is detected on pickling lines.
It is using above-mentioned further advantageous effect：The parameter in production technology can be adjusted in time according to detection data
Value, it is ensured that the quality of production.
Further, in step 6 when carrying out pickling, the minus tolerance of the thickness before and after soft annealing roll bending pickling is less than
0.15mm, the quantity of descaling bath are two, and the quantity of deactivation slot is one, and the quantity of neutralization chamber is one, two descaling baths
Pickling concentration is respectively 18% to 22%, 15% to 18%, the sour position in two descaling baths be 380mm to 420mm, acid liquor temperature
It it is 53 DEG C to 72 DEG C, the pH value of neutralization chamber is 11 to 13, and the pH value of deactivation slot is 7 to 8, and the temperature value of deactivation slot is 38 DEG C to 51
DEG C, the cleaning speed of pickling lines is 5m/min to 15m/min.
It is using above-mentioned further advantageous effect：The oxidation that roll bending generates during soft annealing can be effectively removed
Skin avoids influencing following process.
Further, in the step 3, in spheroidizing, annealing furnace is warming up to 400 DEG C, and be warming up at full speed
1.5h to 3h is kept the temperature after 400 DEG C；After annealing furnace keeps the temperature 1.5h to 3h at a temperature of 400 DEG C, annealing furnace is risen in 2h to 4h
Temperature keeps the temperature 0.6h to 2h to 640 DEG C after being warming up to 640 DEG C；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 640 DEG C,
Annealing furnace in 1.5h to 3h is warming up to 730 DEG C, and 0.6h to 2h is kept the temperature after being warming up to 730 DEG C；Annealing furnace is at 730 DEG C
At a temperature of heat preservation 0.6h to 2h after, annealing furnace is warming up to 740 DEG C to 760 DEG C in 0.5h to 1.8h, and be warming up to 740 DEG C
11h to 14h is kept the temperature after to 760 DEG C.
Further, in spheroidizing, annealing furnace is warming up to 400 DEG C, and keep the temperature 1.8h after being warming up to 400 DEG C at full speed
To 2.4h；After annealing furnace keeps the temperature 1.8h to 2.4h at a temperature of 400 DEG C, annealing furnace is warming up to 640 in 2.5h to 3.2h
DEG C, and 0.6h to 1.2h is kept the temperature after being warming up to 640 DEG C；After annealing furnace keeps the temperature 0.6h to 1.2h at a temperature of 640 DEG C, it will move back
Stove is warming up to 730 DEG C in 1.8h to 2.4h, and 0.6h to 1.2h is kept the temperature after being warming up to 730 DEG C；Annealing furnace is at 730 DEG C
At a temperature of heat preservation 0.6h to 1.2h after, annealing furnace is warming up to 740 DEG C to 760 DEG C in 0.6h to 1.2h, and be warming up to 740
DEG C to keeping the temperature 12h to 13.5h after 760 DEG C.
Further, it in spheroidizing, needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；
In entire heating and insulating process, the difference of actual temperature value and process warm angle value is less than 15 DEG C.
It is using above-mentioned further advantageous effect：It can effectively ensure the stability of spheroidizing roll bending quality.
It further,, need to be first with universal testing machine and hardometer to essence before second of longitudinal shearing slitting is carried out in step 8
The hardness for rolling roll bending is detected, and the acceptability limit of the hardness number of finish rolling roll bending is 75HRB to 85HRB；Hardness number is closed
The finish rolling roll bending of lattice carries out metallographic detection, and the finish rolling roll bending of metallographic detection also qualification is put on small banding machine.
It is using above-mentioned further advantageous effect：The parameter in production technology can be adjusted in time according to detection data
Value, it is ensured that the quality of production.
Description of the drawings
Curve graphs of the Fig. 1 for soft annealing in the processing technology of strip of the present invention；
Curve graphs of the Fig. 2 for spheroidizing in the processing technology of strip of the present invention；
The metallographic reference figure that Fig. 3 is detected for metallographic in the processing technology of strip of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment one：As shown in Figure 1 and Figure 2, a kind of processing technology of stability strip, includes the following steps：
Step 1: prepare raw material, choose the hot-rolled coil that the trade mark is SCM435, wherein, the change of the hot-rolled coil of SCM435
The requirement for studying part is：C:0.33 to 0.38, Si:0.15 to 0.35, Mn:0.60 to 0.90, P：≦0.030、S：≦0.030、
Cr：0.90 to 1.20, Ni：≦0.25、Mo：0.15 to 0.30；The requirement of the mechanical property of the hot-rolled coil of SCM435 is：Tension
Intensity:≦1000MPa；The requirement of the metallographic of the hot-rolled coil of SCM435 is：Ferrite+pearlitic structrure, decarburized layer work as thickness
>5mm, it is the thickness of hot rolled steel plate to allow Tuo Tan≤1%t, wherein t, and Dang Hou Du≤5mm allow decarburization<50 μm, banded structure<
2 grades, field trash is carefully<2 grades, in the present embodiment, it is 3mm to 8.0mm to choose the thickness of hot-rolled coil that the trade mark is SCM435,
It is preferred that 5mm to 6mm；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line, is processed in order to facilitate subsequent handling, hot-rolled coil is in slitting, width side
To the surplus of reserved 0.5mm or so, the thickness tolerance of hot-rolled coil should meet the regulation of GB/T709, convexity requirement：Thickness
Less than or equal to 3.0mm, convexity is less than or equal to 40 μm；Thickness is 3mm to 8.0mm, and convexity is less than or equal to 60 μm, and thickness is more than
8.0mm, convexity are less than or equal to 100 μm, and hot-rolled coil surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, hot rolling
Roll bending must not have a layering, and surface allows to have the deep point of slight point and part within thickness deviation range half, minute bubbles, light
Micro- scuffing and roll impression；Hot-rolled coil neat in edge, without zigzag, and in slitting blade datum end face bounce should be small
In equal to 0.06mm；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, 400 DEG C are warming up to, and 1h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, annealed
After stove keeps the temperature 1h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 1h, and kept the temperature after being warming up to 600 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 0.5h at a temperature of 600 DEG C, is warming up to 690 DEG C, and heating up by 0.5h in 1h
Keep the temperature 0.5h after to 690 DEG C, the 4th, after annealing furnace keeps the temperature 0.5h at a temperature of 690 DEG C, annealing furnace is warming up in 1h
710 DEG C to 730 DEG C, and 10h is kept the temperature after being warming up to 710 DEG C to 730 DEG C, the 5th, temperature of the annealing furnace at 710 DEG C to 730 DEG C
After lower heat preservation 10h, annealing furnace is cooled down into 4.5h by the way of furnace cooling, the 6th, by the way of furnace cooling to moving back
After stove cooling 4.5h, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, the temperature of annealing furnace
After degree is down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove, softening is made
Annealing roll bending；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made, wherein, the thickness after roll bending rolls is 4mm；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, 400 DEG C is warming up to, and 1h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, moves back
After stove keeps the temperature 1h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 1h, and kept the temperature after being warming up to 640 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 0.5h at a temperature of 640 DEG C, is warming up to 730 DEG C, and heating up by 0.5h in 1h
Keep the temperature 0.5h after to 730 DEG C, the 4th, after annealing furnace keeps the temperature 0.5h at a temperature of 730 DEG C, annealing furnace is warming up in 0.5h
740 DEG C to 760 DEG C, and 10h is kept the temperature after being warming up to 740 DEG C to 760 DEG C, the 5th, temperature of the annealing furnace at 740 DEG C to 760 DEG C
After lower heat preservation 10h, the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the way of furnace cooling, the 6th, using with stove
After the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the mode of cooling, to annealing furnace change that cover is air-cooled, and by annealing furnace
Temperature is down to 280 DEG C, and the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, by the temperature of annealing furnace by 280
DEG C 80 DEG C are down to, it is last, come out of the stove, spheroidizing roll bending is made；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made, wherein, the thickness of finish rolling roll bending is 3.5mm；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
Embodiment two：As shown in Figure 1 and Figure 2, a kind of processing technology of stability strip, includes the following steps：
Step 1: prepare raw material, choose the hot-rolled coil that the trade mark is SCM435, wherein, the change of the hot-rolled coil of SCM435
The requirement for studying part is：C:0.33 to 0.38, Si:0.15 to 0.35, Mn:0.60 to 0.90, P：≦0.030、S：≦0.030、
Cr：0.90 to 1.20, Ni：≦0.25、Mo：0.15 to 0.30；The requirement of the mechanical property of the hot-rolled coil of SCM435 is：Tension
Intensity:≦1000MPa；The requirement of the metallographic of the hot-rolled coil of SCM435 is：Ferrite+pearlitic structrure, decarburized layer work as thickness
>5mm, it is the thickness of hot rolled steel plate to allow Tuo Tan≤1%t, wherein t, and Dang Hou Du≤5mm allow decarburization<50 μm, banded structure<
2 grades, field trash is carefully<2 grades, in the present embodiment, it is 3mm to 8.0mm to choose the thickness of hot-rolled coil that the trade mark is SCM435,
It is preferred that 5mm to 6mm；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line, is processed in order to facilitate subsequent handling, hot-rolled coil is in slitting, width side
To the surplus of reserved 0.5mm or so, the thickness tolerance of hot-rolled coil should meet the regulation of GB/T709, convexity requirement：Thickness
Less than or equal to 3.0mm, convexity is less than or equal to 40 μm；Thickness is 3mm to 8.0mm, and convexity is less than or equal to 60 μm, and thickness is more than
8.0mm, convexity are less than or equal to 100 μm, and hot-rolled coil surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, hot rolling
Roll bending must not have a layering, and surface allows to have the deep point of slight point and part within thickness deviation range half, minute bubbles, light
Micro- scuffing and roll impression；Hot-rolled coil neat in edge, without zigzag, and in slitting blade datum end face bounce should be small
In equal to 0.06mm；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, 400 DEG C are warming up to, and 1.8h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, moved back
After stove keeps the temperature 1.8h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 2.8h, and protected after being warming up to 600 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 0.8h at a temperature of 600 DEG C, is warming up to 690 DEG C by warm 0.8h in 1.8h, and
Keep the temperature 0.8h after being warming up to 690 DEG C, the 4th, after annealing furnace keeps the temperature 0.8h at a temperature of 690 DEG C, annealing furnace is risen in 1.8h
Temperature keeps the temperature 11.2h to 710 DEG C to 730 DEG C after being warming up to 710 DEG C to 730 DEG C, and the 5th, annealing furnace is at 710 DEG C to 730 DEG C
At a temperature of keep the temperature 11.2h after, annealing furnace is cooled down into 5.2h by the way of furnace cooling, the 6th, using furnace cooling
After mode cools down 5.2h to annealing furnace, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, move back
After the temperature of stove is down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove,
Soft annealing roll bending is made；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made, wherein, the thickness after roll bending rolls is 4mm；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, is warming up to 400 DEG C, and 1.8h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly,
After annealing furnace keeps the temperature 1.8h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 2.5h, and after being warming up to 640 DEG C
0.6h is kept the temperature, again, after annealing furnace keeps the temperature 0.6h at a temperature of 640 DEG C, annealing furnace is warming up to 730 DEG C in 1.8h, and
Keep the temperature 0.6h after being warming up to 730 DEG C, the 4th, after annealing furnace keeps the temperature 0.6h at a temperature of 730 DEG C, by annealing furnace in 0.6h
740 DEG C to 760 DEG C are warming up to, and 12h is kept the temperature after being warming up to 740 DEG C to 760 DEG C, the 5th, annealing furnace is at 740 DEG C to 760 DEG C
At a temperature of keep the temperature 12h after, the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the way of furnace cooling, the 6th, adopting
After the temperature of annealing furnace is down to 550 DEG C to 600 DEG C with the mode of furnace cooling, it is air-cooled to annealing furnace change cover, and will move back
The temperature of stove is down to 280 DEG C, and the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, by the temperature of annealing furnace
Degree is down to 80 DEG C by 280 DEG C, finally, comes out of the stove, and spheroidizing roll bending is made；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made, wherein, the thickness of finish rolling roll bending is 3.5mm；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
Embodiment three：As shown in Figure 1 and Figure 2, a kind of processing technology of stability strip, includes the following steps：
Step 1: prepare raw material, choose the hot-rolled coil that the trade mark is SCM435, wherein, the change of the hot-rolled coil of SCM435
The requirement for studying part is：C:0.33 to 0.38, Si:0.15 to 0.35, Mn:0.60 to 0.90, P：≦0.030、S：≦0.030、
Cr：0.90 to 1.20, Ni：≦0.25、Mo：0.15 to 0.30；The requirement of the mechanical property of the hot-rolled coil of SCM435 is：Tension
Intensity:≦1000MPa；The requirement of the metallographic of the hot-rolled coil of SCM435 is：Ferrite+pearlitic structrure, decarburized layer work as thickness
>5mm, it is the thickness of hot rolled steel plate to allow Tuo Tan≤1%t, wherein t, and Dang Hou Du≤5mm allow decarburization<50 μm, banded structure<
2 grades, field trash is carefully<2 grades, in the present embodiment, it is 3mm to 8.0mm to choose the thickness of hot-rolled coil that the trade mark is SCM435,
It is preferred that 5mm to 6mm；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line, is processed in order to facilitate subsequent handling, hot-rolled coil is in slitting, width side
To the surplus of reserved 0.5mm or so, the thickness tolerance of hot-rolled coil should meet the regulation of GB/T709, convexity requirement：Thickness
Less than or equal to 3.0mm, convexity is less than or equal to 40 μm；Thickness is 3mm to 8.0mm, and convexity is less than or equal to 60 μm, and thickness is more than
8.0mm, convexity are less than or equal to 100 μm, and hot-rolled coil surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, hot rolling
Roll bending must not have a layering, and surface allows to have the deep point of slight point and part within thickness deviation range half, minute bubbles, light
Micro- scuffing and roll impression；Hot-rolled coil neat in edge, without zigzag, and in slitting blade datum end face bounce should be small
In equal to 0.06mm；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, 400 DEG C are warming up to, and 2.4h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, moved back
After stove keeps the temperature 2.4h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 3.4h, and protected after being warming up to 600 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 1.2h at a temperature of 600 DEG C, is warming up to 690 DEG C by warm 1.2h in 2.4h, and
Keep the temperature 1.2h after being warming up to 690 DEG C, the 4th, after annealing furnace keeps the temperature 1.2h at a temperature of 690 DEG C, annealing furnace is risen in 2.4h
Temperature keeps the temperature 15.6h to 710 DEG C to 730 DEG C after being warming up to 710 DEG C to 730 DEG C, and the 5th, annealing furnace is at 710 DEG C to 730 DEG C
At a temperature of keep the temperature 15.6h after, annealing furnace is cooled down into 6.4h by the way of furnace cooling, the 6th, using furnace cooling
After mode cools down 6.4h to annealing furnace, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, move back
After the temperature of stove is down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove,
Soft annealing roll bending is made；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made, wherein, the thickness after roll bending rolls is 4mm；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, is warming up to 400 DEG C, and 2.4h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly,
After annealing furnace keeps the temperature 2.4h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 3.2h, and after being warming up to 640 DEG C
1.2h is kept the temperature, again, after annealing furnace keeps the temperature 1.2h at a temperature of 640 DEG C, annealing furnace is warming up to 730 DEG C in 2.4h, and
Keep the temperature 1.2h after being warming up to 730 DEG C, the 4th, after annealing furnace keeps the temperature 1.2h at a temperature of 730 DEG C, by annealing furnace in 1.2h
740 DEG C to 760 DEG C are warming up to, and 14h is kept the temperature after being warming up to 740 DEG C to 760 DEG C, the 5th, annealing furnace is at 740 DEG C to 760 DEG C
At a temperature of keep the temperature 14h after, the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the way of furnace cooling, the 6th, adopting
After the temperature of annealing furnace is down to 550 DEG C to 600 DEG C with the mode of furnace cooling, it is air-cooled to annealing furnace change cover, and will move back
The temperature of stove is down to 280 DEG C, and the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, by the temperature of annealing furnace
Degree is down to 80 DEG C by 280 DEG C, finally, comes out of the stove, and spheroidizing roll bending is made；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made, wherein, the thickness of finish rolling roll bending is 3.5mm；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
Example IV：As shown in Figure 1 and Figure 2, a kind of processing technology of stability strip, includes the following steps：
Step 1: prepare raw material, choose the hot-rolled coil that the trade mark is SCM435, wherein, the change of the hot-rolled coil of SCM435
The requirement for studying part is：C:0.33 to 0.38, Si:0.15 to 0.35, Mn:0.60 to 0.90, P：≦0.030、S：≦0.030、
Cr：0.90 to 1.20, N i：≦0.25、Mo：0.15 to 0.30；The requirement of the mechanical property of the hot-rolled coil of SCM435 is：It is anti-
Tensile strength:≦1000MPa；The requirement of the metallographic of the hot-rolled coil of SCM435 is：Ferrite+pearlitic structrure, decarburized layer work as thickness
Degree>5mm, it is the thickness of hot rolled steel plate to allow Tuo Tan≤1%t, wherein t, and Dang Hou Du≤5mm allow decarburization<50 μm, band-like group
It knits<2 grades, field trash is carefully<2 grades, in the present embodiment, choose the trade mark be SCM435 the thickness of hot-rolled coil be 3mm extremely
8.0mm, preferably 5mm are to 6mm；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line, is processed in order to facilitate subsequent handling, hot-rolled coil is in slitting, width side
To the surplus of reserved 0.5mm or so, the thickness tolerance of hot-rolled coil should meet the regulation of GB/T709, convexity requirement：Thickness
Less than or equal to 3.0mm, convexity is less than or equal to 40 μm；Thickness is 3mm to 8.0mm, and convexity is less than or equal to 60 μm, and thickness is more than
8.0mm, convexity are less than or equal to 100 μm, and hot-rolled coil surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, hot rolling
Roll bending must not have a layering, and surface allows to have the deep point of slight point and part within thickness deviation range half, minute bubbles, light
Micro- scuffing and roll impression；Hot-rolled coil neat in edge, without zigzag, and in slitting blade datum end face bounce should be small
In equal to 0.06mm；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, 400 DEG C are warming up to, and 5h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, annealed
After stove keeps the temperature 5h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 6h, and 4h is kept the temperature after being warming up to 600 DEG C,
Again, after annealing furnace keeps the temperature 4h at a temperature of 600 DEG C, annealing furnace is warming up to 690 DEG C in 5h, and be warming up to 690 DEG C
After keep the temperature 4h, the 4th, after annealing furnace keeps the temperature 4h at a temperature of 690 DEG C, annealing furnace is warming up to 710 DEG C to 730 DEG C in 5h,
And 18h is kept the temperature after being warming up to 710 DEG C to 730 DEG C, the 5th, after annealing furnace keeps the temperature 18h at a temperature of 710 DEG C to 730 DEG C, adopt
Annealing furnace is cooled down into 7.2h with the mode of furnace cooling, the 6th, after 7.2h is cooled down to annealing furnace by the way of furnace cooling,
To annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, after the temperature of annealing furnace is down to 280 DEG C,
By the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove, soft annealing roll bending is made；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made, wherein, the thickness after roll bending rolls is 4mm；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, 400 DEG C is warming up to, and 5h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, moves back
After stove keeps the temperature 5h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 6h, and kept the temperature after being warming up to 640 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 4h at a temperature of 640 DEG C, is warming up to 730 DEG C, and be warming up to 730 by 4h in 4h
Keep the temperature 5h after DEG C, the 4th, after annealing furnace keeps the temperature 5h at a temperature of 730 DEG C, annealing furnace is warming up to 740 DEG C to 760 in 2h
DEG C, and 16h is kept the temperature after being warming up to 740 DEG C to 760 DEG C, the 5th, annealing furnace keep the temperature 16h at a temperature of 740 DEG C to 760 DEG C
Afterwards, the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the way of furnace cooling, the 6th, by the way of furnace cooling
After the temperature of annealing furnace is down to 550 DEG C to 600 DEG C, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280
DEG C, the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C,
Finally, it comes out of the stove, spheroidizing roll bending is made；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made, wherein, the thickness of finish rolling roll bending is 3.5mm；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
Embodiment five：As shown in Figure 1 and Figure 2, a kind of processing technology of stability strip, includes the following steps：
Step 1: prepare raw material, choose the hot-rolled coil that the trade mark is SCM435, wherein, the change of the hot-rolled coil of SCM435
The requirement for studying part is：C:0.33 to 0.38, Si:0.15 to 0.35, Mn:0.60 to 0.90, P：≦0.030、S：≦0.030、
Cr：0.90 to 1.20, N i：≦0.25、Mo：0.15 to 0.30；The requirement of the mechanical property of the hot-rolled coil of SCM435 is：It is anti-
Tensile strength:≦1000MPa；The requirement of the metallographic of the hot-rolled coil of SCM435 is：Ferrite+pearlitic structrure, decarburized layer work as thickness
Degree>5mm, it is the thickness of hot rolled steel plate to allow Tuo Tan≤1%t, wherein t, and Dang Hou Du≤5mm allow decarburization<50 μm, band-like group
It knits<2 grades, field trash is carefully<2 grades, in the present embodiment, choose the trade mark be SCM435 the thickness of hot-rolled coil be 3mm extremely
8.0mm, preferably 5mm are to 6mm；
Step 2: first time longitudinal shearing slitting, the hot-rolled coil got ready in step 1 is transported to first by row device for hoisting
First time longitudinal shearing slitting is carried out on big splitting production line, is processed in order to facilitate subsequent handling, hot-rolled coil is in slitting, width side
To the surplus of reserved 0.5mm or so, the thickness tolerance of hot-rolled coil should meet the regulation of GB/T709, convexity requirement：Thickness
Less than or equal to 3.0mm, convexity is less than or equal to 40 μm；Thickness is 3mm to 8.0mm, and convexity is less than or equal to 60 μm, and thickness is more than
8.0mm, convexity are less than or equal to 100 μm, and hot-rolled coil surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, hot rolling
Roll bending must not have a layering, and surface allows to have the deep point of slight point and part within thickness deviation range half, minute bubbles, light
Micro- scuffing and roll impression；Hot-rolled coil neat in edge, without zigzag, and in slitting blade datum end face bounce should be small
In equal to 0.06mm；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing is transported to by row device for hoisting
In stove/ammonia destruction furnace, 400 DEG C are warming up to, and 2h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, annealed
After stove keeps the temperature 2h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 3h, and 1h is kept the temperature after being warming up to 600 DEG C,
Again, after annealing furnace keeps the temperature 1h at a temperature of 600 DEG C, annealing furnace is warming up to 690 DEG C in 2h, and be warming up to 690 DEG C
After keep the temperature 1h, the 4th, after annealing furnace keeps the temperature 1h at a temperature of 690 DEG C, annealing furnace is warming up to 710 DEG C to 730 DEG C in 2h,
And 13h is kept the temperature after being warming up to 710 DEG C to 730 DEG C, the 5th, after annealing furnace keeps the temperature 13h at a temperature of 710 DEG C to 730 DEG C, adopt
Annealing furnace is cooled down into 6h with the mode of furnace cooling, the 6th, after 6h is cooled down to annealing furnace by the way of furnace cooling, to moving back
Stove change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, and the 7th, after the temperature of annealing furnace is down to 280 DEG C, use
The temperature of annealing furnace is down to 80 DEG C by the mode of water cooling by 280 DEG C, finally, is come out of the stove, and soft annealing roll bending is made；
Step 4: pickling, the soft annealing roll bending that soft annealing obtains is transported to pickling lines by row device for hoisting
Upper carry out pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling be transported to by row device for hoisting on production line of rolling mill carrying out
Rolling, and rolling roll bending is made, wherein, the thickness after roll bending rolls is 4mm；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to annealing furnace/ammonolysis craft by row device for hoisting
Spheroidizing is carried out in stove, 400 DEG C is warming up to, and 2h is kept the temperature after being warming up to 400 DEG C at full speed first, by annealing furnace, secondly, moves back
After stove keeps the temperature 2h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 3h, and kept the temperature after being warming up to 640 DEG C
Annealing furnace again, after annealing furnace keeps the temperature 1h at a temperature of 640 DEG C, is warming up to 730 DEG C, and be warming up to 730 by 1h in 2h
Keep the temperature 1h after DEG C, the 4th, after annealing furnace keeps the temperature 1h at a temperature of 730 DEG C, annealing furnace is warming up to 740 DEG C to 760 in 1h
DEG C, and 12h is kept the temperature after being warming up to 740 DEG C to 760 DEG C, the 5th, annealing furnace keep the temperature 12h at a temperature of 740 DEG C to 760 DEG C
Afterwards, the temperature of annealing furnace is down to 550 DEG C to 600 DEG C by the way of furnace cooling, the 6th, by the way of furnace cooling
After the temperature of annealing furnace is down to 550 DEG C to 600 DEG C, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280
DEG C, the 7th, after the temperature of annealing furnace is down to 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C,
Finally, it comes out of the stove, spheroidizing roll bending is made；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and rolls production
Finish rolling is carried out on line, and finish rolling roll bending is made, wherein, the thickness of finish rolling roll bending is 3.5mm；
Step 8: second of longitudinal shearing slitting, the finish rolling roll bending that finish rolling obtains is transported to small banding machine by row device for hoisting
Second of longitudinal shearing slitting of upper progress, and slitting roll bending is made；
Step 9: packaging and storage, being packaged to slitting roll bending obtained after second of longitudinal shearing slitting using baling press
Packaging.
In the present invention, it is preferred to the technical solution of embodiment five, according to the thickness of corresponding hot-rolled coil, is formulated specific
Soft annealing, the operating process of spheroidizing, so as to effectively control the stability and product of the product quality produced
Performance, when the thickness of hot-rolled coil changes, soft annealing, spheroidizing operating process be also required to change.
It in soft annealing, needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；Entirely rising
In temperature and insulating process, the difference of actual temperature value and process warm angle value is less than 15 DEG C, and actual temperature value is measured by thermocouple, inspection
The frequency of survey is 1 time/1h, in addition, can suitably increase heat preservation platform in temperature-rise period, to meet theoretical raising speed.
It in spheroidizing, needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；Entirely rising
In temperature and insulating process, the difference of actual temperature value and process warm angle value is less than 15 DEG C, and actual temperature value is measured by thermocouple, inspection
The frequency of survey is 1 time/1h, in addition, can suitably increase heat preservation platform in temperature-rise period, to meet theoretical raising speed.
Strip needs to be detected twice in entire production technology, wherein once being shown before pickling is carried out by metallographic
Micro mirror is detected the Oxygen potential of soft annealing roll bending, and puts into pickling lines by qualified soft annealing roll bending is detected
On, soft annealing roll bending is judged wherein in Oxygen potential detection process, and whether qualified standard is according to JB/T 5074-2007 standard components
In, 5 grades or 6 grades of the classification of medium carbon structural alloy steel nodularization body；In addition once before second of longitudinal shearing slitting is carried out, by omnipotent
Testing machine and hardometer are detected the hardness of finish rolling roll bending, and the acceptability limit of the hardness number of finish rolling roll bending is 75HRB
To 85HRB；Metallographic detection is carried out to the finish rolling roll bending of hardness number qualification, the finish rolling roll bending of metallographic detection also qualification is put into small
On banding machine, the regulation of metallographic detection reference JB/T5074 to 2007, wherein with reference to shown in Fig. 3.
When carrying out second of longitudinal shearing slitting need on slitting roll bending antirust oil；When carrying out the second longitudinal shearing slitting, hot rolling
Roll bending surface must not have bubble, crackle, scab, stick up skin, drawing crack and be mingled with, and hot-rolled coil must not have layering, and surface allows have thickness
Spend the deep point of slight point and part, minute bubbles, slight scuffing and the roll impression within margin of tolerance half；Hot rolled coil edges of boards
Edge is neat, without zigzag, and the bounce of blade datum end face should be less than or equal to 0.06mm.
When being rolled, obtained rolling roll bending surface is without sticking up skin, pit, point, yellow rust, scale, scuffing, template
It is straight；Edge：Without plucking, broken side.The surface of slitting roll bending that second of longitudinal shearing slitting obtains is without sticking up skin, point, pit, water
Rust, scuffing, yellow rust, coining, plate shape is straight, edge is without broken side；It is needed when carrying out second of longitudinal shearing slitting toward on slitting roll bending
Antirust oil.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of processing technology of stability strip, which is characterized in that include the following steps：
Step 1: it prepares raw material, choose the hot-rolled coil that the trade mark is SCM435；The thickness of the hot-rolled coil of the SCM435 is
3mm to 8.0mm；
Step 2: first time longitudinal shearing slitting, that by row device for hoisting the hot-rolled coil got ready in step 1 is transported to first is big vertical
Cut progress first time longitudinal shearing slitting on production line；
Step 3: soft annealing, by complete first time longitudinal shearing slitting hot-rolled coil annealing furnace/ammonia is transported to by row device for hoisting
In dore furnace, it is warming up to 400 DEG C at full speed first, by annealing furnace, and 1.8h to 5h is kept the temperature after being warming up to 400 DEG C, secondly, anneals
After stove keeps the temperature 1.8h to 2.4h at a temperature of 400 DEG C, annealing furnace is warming up to 600 DEG C in 1h to 2.8h, and be warming up to
0.5h to 0.8h is kept the temperature after 600 DEG C, again, after annealing furnace keeps the temperature 0.5h to 4h at a temperature of 600 DEG C, by annealing furnace in 1.8h
It is warming up to 690 DEG C in 5h, and 0.5h to 4h is kept the temperature after being warming up to 690 DEG C, the 4th, annealing furnace protects at a temperature of 690 DEG C
After warm 0.5h to 4h, annealing furnace is warming up to 710 DEG C to 730 DEG C in 1h to 5h, and protected after being warming up to 710 DEG C to 730 DEG C
Warm 10h to 18h, the 5th, after annealing furnace keeps the temperature 11.2h to 18h at a temperature of 710 DEG C to 730 DEG C, using the side of furnace cooling
Formula by annealing furnace cool down 6.4h to 8h, the 6th, using furnace cooling by the way of to annealing furnace cooling 4h to 8h after, to annealing furnace
Change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, after the temperature of annealing furnace is down to 280 DEG C, using water cooling
Mode, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, it is last, come out of the stove, soft annealing roll bending is made；
Step 4: pickling, that by row device for hoisting soft annealing roll bending that soft annealing obtains is transported to pickling lines is enterprising
Row pickling, and pickling roll bending is made；
Step 5: rolling, the pickling roll bending obtained after pickling is transported to by row device for hoisting on production line of rolling mill rolls,
And rolling roll bending is made；
Step 6: spheroidizing, the rolling roll bending obtained after rolling is transported to by row device for hoisting in annealing furnace/ammonia destruction furnace
Spheroidizing is carried out, is warming up to 400 DEG C at full speed first, by annealing furnace, and 1.8h to 5h is kept the temperature after being warming up to 400 DEG C, secondly,
After annealing furnace keeps the temperature 1h to 5h at a temperature of 400 DEG C, annealing furnace is warming up to 640 DEG C in 1h to 6h, and be warming up to 640
0.5h to 4h is kept the temperature after DEG C, again, after annealing furnace keeps the temperature 0.5h to 4h at a temperature of 640 DEG C, by annealing furnace in 1h to 5h
Be warming up to 730 DEG C, and 0.5h to 4h kept the temperature after being warming up to 730 DEG C, the 4th, annealing furnace keep the temperature 0.5h at a temperature of 730 DEG C
To 4h, annealing furnace is warming up to 740 DEG C to 760 DEG C in 0.5h to 2h, and 10h is kept the temperature after being warming up to 740 DEG C to 760 DEG C
To 16h, the 5th, after annealing furnace keeps the temperature 10h to 16h at a temperature of 740 DEG C to 760 DEG C, will be moved back by the way of furnace cooling
The temperature of stove is down to 550 DEG C to 600 DEG C, and the 6th, the temperature of annealing furnace is being down to 550 DEG C extremely by the way of furnace cooling
After 600 DEG C, to annealing furnace change that cover is air-cooled, and the temperature of annealing furnace is down to 280 DEG C, the 7th, the temperature of annealing furnace is down to
After 280 DEG C, by the way of water cooling, the temperature of annealing furnace is down to 80 DEG C by 280 DEG C, finally, is come out of the stove, spheroidizing volume is made
Plate；
Step 7: finish rolling, the spheroidizing roll bending obtained after spheroidizing by row device for hoisting being transported to and is rolled on production line
Finish rolling is carried out, and finish rolling roll bending is made；
Step 8: second of longitudinal shearing slitting, that by row device for hoisting finish rolling roll bending that finish rolling obtains is transported to small banding machine is enterprising
Second of longitudinal shearing slitting of row, and slitting roll bending is made；
Step 9: packaging and storage, using baling press carrying out packing packaging to slitting roll bending obtained after second of longitudinal shearing slitting.
2. a kind of processing technology of stability strip according to claim 1, which is characterized in that in the step 3,
During soft annealing, annealing furnace is warming up to 400 DEG C, and 1.5h to 3h is kept the temperature after being warming up to 400 DEG C at full speed；Annealing furnace is 400
After keeping the temperature 1.5h to 3h at a temperature of DEG C, annealing furnace is warming up to 600 DEG C in 2h to 4h, and kept the temperature after being warming up to 600 DEG C
0.6h to 2h；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 600 DEG C, annealing furnace is warming up to 690 DEG C in 1.5h to 3h,
And 0.6h to 2h is kept the temperature after being warming up to 690 DEG C；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 690 DEG C, annealing furnace is existed
710 DEG C to 730 DEG C are warming up in 1.5h to 3h, and 11h to 16h is kept the temperature after being warming up to 710 DEG C to 730 DEG C；Annealing furnace is 710
DEG C to after keeping the temperature 11h to 16h at a temperature of 730 DEG C, annealing furnace is cooled down into 4.5h to 7.2h by the way of furnace cooling.
3. the processing technology of a kind of stability strip according to claim 2, which is characterized in that, will in soft annealing
Annealing furnace is warming up to 400 DEG C at full speed, and 1.8h to 2.4h is kept the temperature after being warming up to 400 DEG C；Annealing furnace is protected at a temperature of 400 DEG C
After warm 1.8h to 2.4h, annealing furnace is warming up to 600 DEG C in 2.8h to 3.4h, and 0.8h is kept the temperature extremely after being warming up to 600 DEG C
1.2h；After annealing furnace keeps the temperature 0.8h to 1.2h at a temperature of 600 DEG C, annealing furnace is warming up to 690 DEG C in 1.8h to 2.4h,
And 0.8h to 1.2h is kept the temperature after being warming up to 690 DEG C；After annealing furnace keeps the temperature 0.8h to 1.2h at a temperature of 690 DEG C, it will anneal
Stove is warming up to 710 DEG C to 730 DEG C in 1.8h to 2.4h, and 11.2h to 15.6h is kept the temperature after being warming up to 710 DEG C to 730 DEG C；
After annealing furnace keeps the temperature 11.2h to 15.6h at a temperature of 710 DEG C to 730 DEG C, annealing furnace is cooled down by the way of furnace cooling
5.2h to 6.4h.
4. according to a kind of processing technology of stability strip any in claim 1 to 2, which is characterized in that softening is moved back
It in fire, needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；In entire heating and insulating process
In, the difference of actual temperature value and process warm angle value is less than 15 DEG C.
5. a kind of processing technology of stability strip according to claim 1, which is characterized in that in the step 4,
Before carrying out pickling, the Oxygen potential of soft annealing roll bending need to be detected first with metallographic microscope, and the soft of qualification will be detected
Annealing roll bending is put on pickling lines.
6. a kind of processing technology of stability strip according to claim 1, which is characterized in that in the step 6 into
During row pickling, the minus tolerance of the thickness before and after soft annealing roll bending pickling is less than 0.15mm, and the quantity of descaling bath is two, deactivation slot
Quantity for one, the quantity of neutralization chamber is one, the pickling concentration of two descaling baths be respectively 18% to 22%, 15% to
18%, the sour position in two descaling baths is 380mm to 420mm, and acid liquor temperature is 53 DEG C to 72 DEG C, the pH value of neutralization chamber for 11 to
13, the pH value of deactivation slot is 7 to 8, and the temperature value of deactivation slot is 38 DEG C to 51 DEG C, and the cleaning speed of pickling lines is 5m/min
To 15m/min.
7. a kind of processing technology of stability strip according to claim 1, which is characterized in that in the step 3,
During spheroidizing, annealing furnace is warming up to 400 DEG C, and 1.5h to 3h is kept the temperature after being warming up to 400 DEG C at full speed；Annealing furnace is 400
After keeping the temperature 1.5h to 3h at a temperature of DEG C, annealing furnace is warming up to 640 DEG C in 2h to 4h, and kept the temperature after being warming up to 640 DEG C
0.6h to 2h；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 640 DEG C, annealing furnace is warming up to 730 DEG C in 1.5h to 3h,
And 0.6h to 2h is kept the temperature after being warming up to 730 DEG C；After annealing furnace keeps the temperature 0.6h to 2h at a temperature of 730 DEG C, annealing furnace is existed
740 DEG C to 760 DEG C are warming up in 0.5h to 1.8h, and 11h to 14h is kept the temperature after being warming up to 740 DEG C to 760 DEG C.
8. the processing technology of a kind of stability strip according to claim 7, which is characterized in that, will in spheroidizing
Annealing furnace is warming up to 400 DEG C at full speed, and 1.8h to 2.4h is kept the temperature after being warming up to 400 DEG C；Annealing furnace is protected at a temperature of 400 DEG C
After warm 1.8h to 2.4h, annealing furnace is warming up to 640 DEG C in 2.5h to 3.2h, and 0.6h is kept the temperature extremely after being warming up to 640 DEG C
1.2h；After annealing furnace keeps the temperature 0.6h to 1.2h at a temperature of 640 DEG C, annealing furnace is warming up to 730 DEG C in 1.8h to 2.4h,
And 0.6h to 1.2h is kept the temperature after being warming up to 730 DEG C；After annealing furnace keeps the temperature 0.6h to 1.2h at a temperature of 730 DEG C, it will anneal
Stove is warming up to 740 DEG C to 760 DEG C in 0.6h to 1.2h, and 12h to 13.5h is kept the temperature after being warming up to 740 DEG C to 760 DEG C.
A kind of 9. processing technology of stability strip according to claim 1 or 7 or 8, which is characterized in that spheroidizing
In, it needs to do detonation experiment before being heated up, it is ensured that the purity of hydrogen in ammonia destruction furnace；In entire heating and insulating process,
The difference of actual temperature value and process warm angle value is less than 15 DEG C.
10. a kind of processing technology of stability strip according to claim 1, which is characterized in that in the step 8,
Before carrying out second of longitudinal shearing slitting, the hardness of finish rolling roll bending need to be detected first with universal testing machine and hardometer, and
The acceptability limit of the hardness number of finish rolling roll bending is 75HRB to 85HRB；Metallographic detection is carried out to the finish rolling roll bending of hardness number qualification,
The finish rolling roll bending of metallographic detection also qualification is put on small banding machine.
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| CN114182070A (en) * | 2021-12-02 | 2022-03-15 | 南京钢铁股份有限公司 | Spheroidizing annealing method for carbon tool steel roller bottom type annealing furnace for automobile |
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| CN106086350A (en) | 2016-11-09 |
| CN108165709A (en) | 2018-06-15 |
| CN108251610A (en) | 2018-07-06 |
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| CN108251610B (en) | 2020-02-18 |
| CN106086350B (en) | 2018-02-16 |
| CN108220548B (en) | 2019-10-15 |
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| CN108165709B (en) | 2019-12-27 |
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Effective date of registration: 20191106 Address after: 315600 No.2, Nanbin North Road, Binhai New Area, south of Ningbo, Ninghai County, Ningbo City, Zhejiang Province Applicant after: Ningbo Qiyi Metal Co., Ltd. Address before: 430000 Laser Engineering Design Headquarters Phase II, Guanggu Avenue, Donghu New Technology Development Zone, Hongshan District, Wuhan City, Hubei Province, 6 buildings, 6 units, 13 floors, 06 rooms (201734) Applicant before: Wuhan Bai Sheng Technology Co., Ltd. |
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