CN110202007A - A method of extending roll working life - Google Patents
A method of extending roll working life Download PDFInfo
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- CN110202007A CN110202007A CN201910606461.6A CN201910606461A CN110202007A CN 110202007 A CN110202007 A CN 110202007A CN 201910606461 A CN201910606461 A CN 201910606461A CN 110202007 A CN110202007 A CN 110202007A
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- roll
- alloyed powder
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- extending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
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Abstract
The present invention relates to iron and steel smelting technology fields, and disclose a kind of method for extending roll working life, comprising the following steps: 1) select roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.2) extent of deterioration is detected: after roll is disassembled, supersonic detector can be used to penetrate roll depths using ultrasonic wave, after ultrasonic beam passes to roll inside by popping one's head in from roller surface, back wave can occur respectively when encountering defect or roll bottom, form impulse waveform on fluorescent screen.The method of the extension roll working life, it is detected by the extent of deterioration to roll working lining, judge whether it is able to carry out to recycle, then by carrying out precision processing to it, then roller surface quality and hardness after processing are improved by alloyed powder, roll is set to become the durable goods that can be recycled from consumables, the service life for substantially reducing production cost, extending roll.
Description
Technical field
The present invention relates to iron and steel smelting technology field, specially a kind of method for extending roll working life.
Background technique
Roll is the important tool of production of steel production enterprise.In Rolling Production, since roll is directly contacted with stocking,
The deformation process of rolled piece is taken part in, while roll itself also wears out consumption, cracks, is needed after reaching certain rolling tonnage
Replacement, to generate spare parts consumption and influence operating rate.Therefore, for the requirement of roll, whether apparent size, internal structure
And tissue and various performances, suffer from very strict control standard, for these reasons, the direct shadow of the behaviour in service of roll
It rings and arrives product quality and production efficiency.
Roll will appear the failure modes such as crackle, peeling and fracture by prolonged work, since roll is expensive,
It is too high directly to scrap processing cost, and influences processing efficiency, it is therefore desirable to the method that one kind can extend roll working life.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of method for extending roll working life, have and improve roll
Service life and the advantages that improve the machining accuracy of roll, solve the problems, such as * * *.
(2) technical solution
Purpose for the machining accuracy realized the above-mentioned service life for improving roll and improve roll, the present invention provides as follows
Technical solution: a method of extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, the alloyed powder formula, including following components: Cr7%~13%, Si20%~
25%, Mo8%~14%, W5%~11%, Tic27%~31% and Fe28%~34%.
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr6%~12%, Si16%~22%, Mo6%
~12%, W6%~12%, Tic27%~33%, Fe28%~34%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr7%~13%, Si17%~23%, Mo7%
~13%, W7%~13%, Tic28%~34%, Fe29%~35%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr5%~11%, Si15%~21%, Mo5%
~11%, W5%~11%, Tic26%~32%, Fe27%~33%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr6%~12%, Si18%~24%, Mo4%
~10%, W6%~12%, Tic28%~34%, Fe27%~33%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr7%~13%, Si16%~22%, Mo6%
~11%, W6%~14%, Tic27%~31%, Fe28%~34%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr9%~10%, Si21%~22%, Mo9%
~13%, W6%~10%, Tic23%~30% and Fe25%~32%.
Preferably, the alloyed powder includes the raw material of following parts by weight proportion: Cr8%~12%, Si21.5%~23%,
Mo9%~13%, W6%~10%, Tic28%~30% and Fe12%~27.5%.
(3) beneficial effect
Compared with prior art, the present invention provides it is a kind of extend roll working life method, have it is following the utility model has the advantages that
1, the method for the extension roll working life is detected by the extent of deterioration to roll working lining, whether judges it
It is able to carry out and recycles, then by carrying out precision processing to it, roller surface matter after processing then is improved by alloyed powder
Amount and hardness, make roll become the durable goods that can be recycled from consumables, the use for substantially reducing production cost, extending roll
Service life.
2, the method for the extension roll working life is processed it by high-precision numerical control machine, is added in turning
It is calibrated with dial gauge before work, cooperates the measurers such as sine gauge, knife-edge ruler, dial gauge and magnetic stand to it again after processing is completed
Detected, not only increase the precision of roll, and roll is avoided deviation occur, prevent it is carried out using when occur safety
Hidden danger.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr7%, Si20%, Mo8%, W10%,
Tic27%、Fe28%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Embodiment two:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr8%, Si19%, Mo8%, W9%,
Tic28%、Fe28%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Embodiment three:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr5%, Si21%, Mo9%, W10%,
Tic26%、Fe29%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Example IV:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr8%, Si19%, Mo4%, W11%,
Tic29%、Fe29%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Embodiment five:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr7%, Si18%, Mo5%, W9%,
Tic28%、Fe33%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
Embodiment six:
1. a kind of method for extending roll working life, comprising the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled.
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll using ultrasonic wave
Depths can occur when encountering defect or roll bottom respectively after ultrasonic beam passes to roll inside by popping one's head in from roller surface
Back wave comes, and forms impulse waveform on fluorescent screen, is converted automatically according to defect highest wave, to detect the roll work
The extent of deterioration for making layer judges whether it is able to carry out to recycle.
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, is then used tricks
Suan Ji mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes lathe
The included interpolation function (G00, GO1, GO2, GO3) of digital control system, preparatory function (G98), tool function (T11, T22), compensation
The number such as function (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Control the establishment that code carries out processing program according to the track of roll.
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll by using dial gauge
Spacing between chuck, it is then adjusted again further according to spacing dimension size, to complete to calibrate.
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller is often pressed from both sides with machine
The knife side knife handle 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool.The small-sized roll in part is pressed from both sides using 25*25 machine
Knife handle and 32*32 clamped cutting bit handle, the tool cutting edge angle of clamped cutting bit handle are selected according to roll draw ratio, elongated roll often use 90 degree or
75 degree of mechanically-clamped turning tools, sturdy roll often use 45 degree or arc lathe tool processing, and then the roller surface spray coating alloy good to turning closes
Bronze, alloyed powder fusing can be in conjunction with roller substrate, alloyed powder formula, including following components: Cr7%, Si20%, Mo7%, W7%,
Tic27%、Fe32%。
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the plane in flat face is examined with knife-edge ruler
Degree is found out the recessed heart district domain in entire flat face, the magnetic stand equipped with dial gauge is adsorbed on sinusoidal datum plane, then will
Two survey columns of sine gauge avoid the form error in flat face to Form and position error across the recessed heart district domain measurement symmetry on flat face
It influences, improves the precision to roller measure, judge whether there is deviation.
In conclusion the method for the extension roll working life, is detected by the extent of deterioration to roll working lining,
Judge whether it is able to carry out to recycle, then by carrying out precision processing to it, after then improving processing by alloyed powder
Roller surface quality and hardness make roll become the durable goods that can be recycled from consumables, substantially reduce production cost, extend
The service life of roll processes it by high-precision numerical control machine, is being calibrated with dial gauge to it before turnery processing,
Cooperate the measurers such as sine gauge, knife-edge ruler, dial gauge and magnetic stand to detect it again after processing is completed, not only increases and roll
The precision of roller, and roll is avoided deviation occur, prevent it is carried out using when there is security risk.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of method for extending roll working life, which comprises the following steps:
1) it selectes roll: the roll of the failure modes such as cracked, peeling and fracture is disassembled,
2) it detects extent of deterioration: after roll is disassembled, supersonic detector can be used to penetrate roll depths using ultrasonic wave,
After ultrasonic beam passes to roll inside by popping one's head in from roller surface, back wave can occur respectively when encountering defect or roll bottom
Come, forms impulse waveform on fluorescent screen, converted automatically according to defect highest wave, to detect the roll working lining
Extent of deterioration judges whether it is able to carry out to recycle,
3) roll preprocessing: the roll that will be recycled is delivered in high-precision numerical control lathe, then uses computer
Mapping software draws out the part drawing of roll, successively captures node, marks the size needed when programming, then utilizes numerical control of machine tools
The included interpolation function (G00, GO1, GO2, GO3) of system, preparatory function (G98), tool function (T11, T22), compensation function
The numerical controls generation such as (G42, G40), miscellaneous function (M98, M99, M30), feed function (G04) and Multiple Cycle function (G71, G70)
Code carries out the establishment of processing program according to the track of roll,
4) roll is calibrated: after roll is fixed in the oild chuck of numerically-controlled machine tool, measuring roll and card by using dial gauge
Spacing between disk, it is then adjusted again further according to spacing dimension size, thus complete to calibrate,
5) roll turning: cutter can be replaced according to the material of roll and hardness, wherein large-scale roller often uses clamped cutting bit handle
The knife side 40*40, commonly using knife bar angle is 45 degree of mechanically-clamped turning tools and arc lathe tool, and the small-sized roll in part uses 25*25 clamped cutting bit handle
It is selected with the tool cutting edge angle of 32*32 clamped cutting bit handle, clamped cutting bit handle according to roll draw ratio, elongated roll often uses 90 degree or 75 degree
Mechanically-clamped turning tool, sturdy roll often use 45 degree or arc lathe tool processing, then the roller surface spray coating alloy alloyed powder good to turning,
Alloyed powder fusing can be in conjunction with roller substrate, the alloyed powder formula, including following components: Cr7%~13%, Si20%~25%,
Mo8%~14%, W5%~11%, Tic27%~31% and Fe28%~34%,
6) measurer detects: selecting sine gauge to cooperate flat face to measure with knife-edge ruler, the flatness in flat face is examined with knife-edge ruler, is looked for
The recessed heart district domain in entire flat face out, is adsorbed on the magnetic stand equipped with dial gauge on sinusoidal datum plane, then will be sinusoidal
Two survey columns of rule avoid the form error in flat face to the shadow of Form and position error across the recessed heart district domain measurement symmetry on flat face
It rings, improves the precision to roller measure, judge whether there is deviation.
2. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr6%~12%, Si16%~22%, Mo6%~12%, W6%~12%, Tic27%~33%,
Fe28%~34%.
3. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr7%~13%, Si17%~23%, Mo7%~13%, W7%~13%, Tic28%~34%,
Fe29%~35%.
4. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr5%~11%, Si15%~21%, Mo5%~11%, W5%~11%, Tic26%~32%,
Fe27%~33%.
5. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr6%~12%, Si18%~24%, Mo4%~10%, W6%~12%, Tic28%~34%,
Fe27%~33%.
6. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr7%~13%, Si16%~22%, Mo6%~11%, W6%~14%, Tic27%~31%,
Fe28%~34%.
7. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: the and of Cr9%~10%, Si21%~22%, Mo9%~13%, W6%~10%, Tic23%~30%
Fe25%~32%.
8. a kind of method for extending roll working life according to claim 1, which is characterized in that the alloyed powder includes
The raw material of following parts by weight proportion: Cr8%~12%, Si21.5%~23%, Mo9%~13%, W6%~10%, Tic28%~30%
With Fe12%~27.5%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111141820A (en) * | 2019-12-26 | 2020-05-12 | 中钢集团邢台机械轧辊有限公司 | Crack roller judging method |
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| CN107159714A (en) * | 2017-05-22 | 2017-09-15 | 河钢股份有限公司邯郸分公司 | A kind of method that local reconditioning is carried out to cold rolling support roller working face |
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| US5460023A (en) * | 1991-09-13 | 1995-10-24 | International Rolling Mill Consultants Inc. | Roll surface restoration system and method |
| CN103042038A (en) * | 2013-01-10 | 2013-04-17 | 河北省首钢迁安钢铁有限责任公司 | Method for prolonging service life of rolling bearing |
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