CN109280860A - A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper - Google Patents

A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper Download PDF

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Publication number
CN109280860A
CN109280860A CN201811411236.9A CN201811411236A CN109280860A CN 109280860 A CN109280860 A CN 109280860A CN 201811411236 A CN201811411236 A CN 201811411236A CN 109280860 A CN109280860 A CN 109280860A
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blade
temperature
cooled
follows
heat
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黄备胜
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Anqing Qianqian Paper Industry Co Ltd
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Anqing Qianqian Paper Industry Co Ltd
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Priority to CN201811411236.9A priority Critical patent/CN109280860A/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002Hybrid process, e.g. forging following casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/04Hardening by cooling below 0 degrees Celsius
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium

Abstract

The present invention provides a kind of wear-resistant blade and its processing technology for cutting leaching membrane paper, including forging~annealing~roughing~heat treatment~tempering~finishing, the rough forging component that the forging uses is by weight percentage are as follows: C:1.03~1.32%, Mn:1.02~1.35%, V:1.45~1.67%, W:1.25~1.67%, Zr:0.45~0.65%, Ti:0.65~0.85%, Ni:0.40~0.50%, Nb:0.24~0.35%, Cr:6.3~8.5%, Mo:0.78~0.91%, surplus are Fe and inevitable impurity;The present invention not only increases kneader bar integral hardness and wear-resisting property, also improves the corrosion resistance of kneader bar, extends the service life of blade.

Description

A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper
Technical field
The present invention relates to dixie cup cutting technical field, specially it is a kind of cut leaching membrane paper wear-resistant blade and its add Work technique.
Background technique
It in existing laminated paper cup processing technology, requires to use cutting machine, cutting effect is carried out to leaching membrane paper, In cutting process, often there is point of a knife or blade is damaged, the main reason is that blade stiffness is lower, wearability is poor, portion Point blade encounters that air is oxidized or during shredded paper when is often accompanied by l Water Paper since long-time is placed in use, There is certain corrosivity to blade, influences the service life of blade.
Summary of the invention
The purpose of the present invention is to provide a kind of wear-resistant blades and its processing technology for cutting leaching membrane paper, on solving State the technical issues of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme: it is a kind of cut leaching membrane paper wear-resistant blade and Its processing technology, comprising the following steps:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.03~ 1.32%, Mn:1.02~1.35%, V:1.45~1.67%, W:1.25~1.67%, Zr:0.45~0.65%, Ti:0.65 ~0.85%, Ni:0.40~0.50%, Nb:0.24~0.35%, Cr:6.3~8.5%, Mo:0.78~0.91%, surplus are Fe and inevitable impurity;
(2) it making annealing treatment, will be made annealing treatment through rough forging obtained in step (1), holding temperature is 900~980 DEG C, Soaking time is 2~4h, then 3~4h of isothermal when cooling to 400~450 DEG C with the furnace comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) be heat-treated, the kneader bar obtained by step (3) be first heated to 580~620 DEG C of 2~4h of heat preservation, then plus Heat to 800~850 DEG C, keep the temperature 2~4h, quenched after being then again heated to 960~990 DEG C of 1~2h of heat preservation, cool down after using Subzero treatment, the temperature of subzero treatment are -220 to -230 DEG C, keep 1~2h, are air-cooled to room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 500~540 DEG C, after air-cooled Then 8~12h of ageing strengthening at 130~160 DEG C carries out second and is tempered, tempering temperature is 500~540 DEG C, it is air-cooled after 8~12h of ageing strengthening under room temperature;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, whether the detection of blade for shredding paper, detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified.
Preferably, the annealing in the step (2), specific steps are as follows: rough forging is first packed into heat-treatment furnace, with The heating rate of 20 DEG C/min is warming up to 900~980 DEG C, keeps the temperature 2~4h, is then at the uniform velocity cooled to 400~450 by 3~4h DEG C, it finally comes out of the stove air-cooled.
Preferably, the heat treatment in the step (4), specific steps are as follows: heat boiler is first heated to 580~620 DEG C, is put Enter rough forging;Then after being warming up to 800~850 DEG C with the heating rate of 15 DEG C/min, 2~4h is kept the temperature;Then with 20 DEG C/ The heating rate of min is warming up to 960~990 DEG C again, quenches after keeping the temperature 1~2h;Using subzero treatment after natural cooling, with 20 DEG C/rate of temperature fall of min is cooled to -220~-230 DEG C, 1~2h is kept, is placed to room temperature.
Compared with prior art, the beneficial effects of the present invention are: the present invention not only increases kneader bar integral hardness And wear-resisting property, the corrosion resistance of kneader bar is also improved, the service life of blade is extended.
Specific embodiment
Technical scheme of the present invention will be further described combined with specific embodiments below, but the present invention is not limited to this A little embodiments.Wherein embodiment 1-4 is embodiment in the scope of the invention, and embodiment 5 is outside the scope of the present invention comparative example.
Embodiment 1, prepare embodiment 1 processing technology the following steps are included:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.03%, Mn: 1.02%, V:1.45%, W:1.25%, Zr:0.45%, Ti:0.65%, Ni:0.40%, Nb:0.24%, Cr:6.3%, Mo: 0.78%, surplus is Fe and inevitable impurity;
(2) it makes annealing treatment, heat-treatment furnace will be packed into through rough forging obtained in step (1), with the heating rate of 20 DEG C/min 900 DEG C are warming up to, 2h is kept the temperature, then 400 DEG C is at the uniform velocity cooled to by 3h, finally comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) it is heat-treated, heat boiler is first heated to 580 DEG C, is put into the rough forging that step (3) obtains;Then with 15 DEG C/min Heating rate be warming up to 800 DEG C after, keep the temperature 2h;Then it is warming up to 960 DEG C again with the heating rate of 20 DEG C/min, after keeping the temperature 1h Quenching;Using subzero treatment after natural cooling, -220 DEG C are cooled to the rate of temperature fall of 20 DEG C/min, keeps 1h, is placed extremely Room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 500 DEG C, it is air-cooled after 130 Then ageing strengthening 8h at DEG C carries out second and is tempered, tempering temperature is 500 DEG C, it is air-cooled after ageing strengthening at room temperature 8h;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, the detection of blade for shredding paper, whether detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified, and confirmation is qualified Afterwards up to embodiment 1.
Embodiment 2, preparation embodiment 2 the following steps are included:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.32%, Mn: 1.35%, V:1.67%, W:1.67%, Zr:0.65%, Ti:0.85%, Ni:0.50%, Nb:0.35%, Cr:8.5%, Mo: 0.91%, surplus is Fe and inevitable impurity;
(2) it makes annealing treatment, heat-treatment furnace will be packed into through rough forging obtained in step (1), with the heating rate of 20 DEG C/min 980 DEG C are warming up to, 4h is kept the temperature, then 450 DEG C is at the uniform velocity cooled to by 4h, finally comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) it is heat-treated, heat boiler is first heated to 620 DEG C, is put into the rough forging that step (3) obtains;Then with 15 DEG C/min Heating rate be warming up to 850 DEG C after, keep the temperature 4h;Then it is warming up to 990 DEG C again with the heating rate of 20 DEG C/min, after keeping the temperature 2h Quenching;Using subzero treatment after natural cooling, -230 DEG C are cooled to the rate of temperature fall of 20 DEG C/min, keeps 2h, is placed extremely Room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 540 DEG C, it is air-cooled after 160 Then ageing strengthening 12h at DEG C carries out second and is tempered, tempering temperature is 540 DEG C, it is air-cooled after ageing strengthening at room temperature 12h;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, the detection of blade for shredding paper, whether detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified, and confirmation is qualified Afterwards up to embodiment 2.
Embodiment 3 prepares the processing technology of embodiment 3 are as follows:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.08%, Mn: 1.20%, V:1.52%, W:1.45%, Zr:0.55%, Ti:0.75%, Ni:0.45%, Nb:0.28%, Cr:7.2%, Mo: 0.82%, surplus is Fe and inevitable impurity;
(2) it makes annealing treatment, heat-treatment furnace will be packed into through rough forging obtained in step (1), with the heating rate of 20 DEG C/min 950 DEG C are warming up to, 3h is kept the temperature, then 430 DEG C is at the uniform velocity cooled to by 3.5h, finally comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) it is heat-treated, heat boiler is first heated to 600 DEG C, is put into the rough forging that step (3) obtains;Then with 15 DEG C/min Heating rate be warming up to 820 DEG C after, keep the temperature 3h;Then it is warming up to 975 DEG C again with the heating rate of 20 DEG C/min, keeps the temperature 1.5h After quench;Using subzero treatment after natural cooling, -225 DEG C are cooled to the rate of temperature fall of 20 DEG C/min, 1.5h is kept, puts It sets to room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 520 DEG C, it is air-cooled after 145 Then ageing strengthening 10h at DEG C carries out second and is tempered, tempering temperature is 520 DEG C, it is air-cooled after ageing strengthening at room temperature 10h;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, the detection of blade for shredding paper, whether detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified, and confirmation is qualified Afterwards up to embodiment 3.
Embodiment 4, prepare embodiment 4 processing technology the following steps are included:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.12%, Mn: 1.21%, V:1.48%, W:1.357%, Zr:0.48%, Ti:0.85%, Ni:0.42%, Nb:0.25%, Cr:6.8%, Mo:0.80%, surplus are Fe and inevitable impurity;
(2) it makes annealing treatment, heat-treatment furnace will be packed into through rough forging obtained in step (1), with the heating rate of 20 DEG C/min 950 DEG C are warming up to, 4h is kept the temperature, then 420 DEG C is at the uniform velocity cooled to by 4h, finally comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) it is heat-treated, heat boiler is first heated to 580 DEG C, is put into the rough forging that step (3) obtains;Then with 15 DEG C/min Heating rate be warming up to 800 DEG C after, keep the temperature 4h;Then it is warming up to 960 DEG C again with the heating rate of 20 DEG C/min, after keeping the temperature 1h Quenching;Using subzero treatment after natural cooling, -220 DEG C are cooled to the rate of temperature fall of 20 DEG C/min, keeps 1h, is placed extremely Room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 540 DEG C, it is air-cooled after 140 Then ageing strengthening 8h at DEG C carries out second and is tempered, tempering temperature is 520 DEG C, it is air-cooled after ageing strengthening at room temperature 12h;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, the detection of blade for shredding paper, whether detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified, and confirmation is qualified Afterwards up to embodiment 4.
Embodiment 5, prepare embodiment 5 processing technology the following steps are included:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.52%, Mn: 1.03%, V:1.47%, W:1.02%, Zr:0.45%, Ti:0.65%, Ni:0.40%, Nb:0.25%, Cr:7.0%, Mo: 0.75%, surplus is Fe and inevitable impurity;
(2) it makes annealing treatment, heat-treatment furnace will be packed into through rough forging obtained in step (1), and be heated to 900 DEG C, keep the temperature 2h, so 400 DEG C are at the uniform velocity cooled to by 3h afterwards, is finally come out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) it is heat-treated, is put into the rough forging that step (3) obtains, is heated to 620 DEG C;Then to be heated to 800 DEG C after, heat preservation 2h;It is again heated to 960 DEG C, is quenched after keeping the temperature 1h;Using subzero treatment after natural cooling, rough forging is placed in -230 DEG C At a temperature of, 1~2h is kept, is placed to room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 540 DEG C, it is air-cooled after 130 Then ageing strengthening 10h at DEG C carries out second and is tempered, tempering temperature is 540 DEG C, it is air-cooled after ageing strengthening at room temperature 10h;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, the detection of blade for shredding paper, whether detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified, and confirmation is qualified Afterwards up to embodiment 5.
Hardness and wear-resisting property test are carried out to the kneader bar of Examples 1 to 5 preparation, obtain table one.
Rockwell Hardness Tensile strength (MPa) Whether there is or not abrasions for appearance
Embodiment 1 51 835 Without abrasion
Embodiment 2 53 840 Without abrasion
Embodiment 3 55 852 Without abrasion
Embodiment 4 52 842 Without abrasion
Embodiment 5 42 705 Without abrasion
Deposited metal mechanics and corrosive nature test are carried out to the kneader bar of Examples 1 to 5 preparation, obtain table two.
Elongation percentage (%) Rate of corrosion (g/m2h)
Embodiment 1 33.5 0.502
Embodiment 2 32.5 0.492
Embodiment 3 34 0.485
Embodiment 4 32 0.508
Embodiment 5 41 0.721
It can be apparent from by table one and table two, the beneficial effects of the present invention are: not only increasing kneader bar entirety Hardness and wear-resisting property also improve the corrosion resistance of kneader bar, extend the service life of blade.
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 (3)

1. a kind of wear-resistant blade and its processing technology for cutting leaching membrane paper, it is characterised in that: the following steps are included:
(1) it forges, is made using forging rough forging, the component of the blank is by weight percentage are as follows: C:1.03~ 1.32%, Mn:1.02~1.35%, V:1.45~1.67%, W:1.25~1.67%, Zr:0.45~0.65%, Ti:0.65 ~0.85%, Ni:0.40~0.50%, Nb:0.24~0.35%, Cr:6.3~8.5%, Mo:0.78~0.91%, surplus are Fe and inevitable impurity;
(2) it making annealing treatment, will be made annealing treatment through rough forging obtained in step (1), holding temperature is 900~980 DEG C, Soaking time is 2~4h, then 3~4h of isothermal when cooling to 400~450 DEG C with the furnace comes out of the stove air-cooled;
(3) after step (2) annealing the workpiece there are allowance for finish is made, specifically in rough forging by roughing Are as follows: make the thickness surplus 3mm of blade, the axial height surplus of blade is 2mm, and the radial height surplus of blade is 2mm;
(4) be heat-treated, the kneader bar obtained by step (3) be first heated to 580~620 DEG C of 2~4h of heat preservation, then plus Heat to 800~850 DEG C, keep the temperature 2~4h, quenched after being then again heated to 960~990 DEG C of 1~2h of heat preservation, cool down after using Subzero treatment, the temperature of subzero treatment are -220 to -230 DEG C, keep 1~2h, are air-cooled to room temperature;
(5) be tempered: the kneader bar that step (4) is obtained carries out tempering, and tempering temperature is 500~540 DEG C, after air-cooled Then 8~12h of ageing strengthening at 130~160 DEG C carries out second and is tempered, tempering temperature is 500~540 DEG C, it is air-cooled after 8~12h of ageing strengthening under room temperature;
(6) finish: the kneader bar that step (5) is obtained carries out further deep processing, specific steps are as follows:
A, benchmark is looked for;
B, two planes of kneader bar are refined;
C, the blade of kneader bar is refined;
D, whether the detection of blade for shredding paper, detection blade stiffness, the depth of parallelism of two plane of the depth of parallelism and blade are qualified.
2. a kind of wear-resistant blade and its processing technology for cutting leaching membrane paper according to claim 1, it is characterised in that: Annealing in the step (2), specific steps are as follows: rough forging is first packed into heat-treatment furnace, with the heating of 20 DEG C/min Rate is warming up to 900~980 DEG C, keeps the temperature 2~4h, is then at the uniform velocity cooled to 400~450 DEG C by 3~4h, sky of finally coming out of the stove It is cold.
3. a kind of wear-resistant blade and its processing technology for cutting leaching membrane paper according to claim 1, it is characterised in that: Heat treatment in the step (4), specific steps are as follows: heat boiler is first heated to 580~620 DEG C, is put into rough forging;Then After being warming up to 800~850 DEG C with the heating rate of 15 DEG C/min, 2~4h is kept the temperature;Then again with the heating rate of 20 DEG C/min 960~990 DEG C are warming up to, is quenched after keeping the temperature 1~2h;Using subzero treatment after natural cooling, with the cooling speed of 20 DEG C/min Rate is cooled to -220~-230 DEG C, keeps 1~2h, places to room temperature.
CN201811411236.9A 2018-11-24 2018-11-24 A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper Pending CN109280860A (en)

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* Cited by examiner, † Cited by third party
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CN110153530A (en) * 2019-05-22 2019-08-23 安徽锋利锐刀片制造有限公司 A kind of cutting jig and processing technology of plastic crusher long blade

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Application publication date: 20190129