CN106381376A - Processing method of stainless steel plate for cutting tool, cutting tool and processing method of cutting tool - Google Patents
Processing method of stainless steel plate for cutting tool, cutting tool and processing method of cutting tool Download PDFInfo
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- CN106381376A CN106381376A CN201510446237.7A CN201510446237A CN106381376A CN 106381376 A CN106381376 A CN 106381376A CN 201510446237 A CN201510446237 A CN 201510446237A CN 106381376 A CN106381376 A CN 106381376A
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Abstract
The invention discloses a processing method of a stainless steel plate for a cutting tool, the cutting tool and a processing method of the cutting tool, and belongs to the field of chemical machinery. The processing method includes the steps: carrying out first vacuum quenching treatment of a stainless steel plate after hot rolling and cold rolling, wherein the first vacuum quenching treatment comprises the steps of successively carrying out first heat treatment for 18 to 22 min at the temperature of 900 to 1000 DEG C, carrying out first air cooling treatment and carrying out first cryogenic treatment for 25 to 35 min at the temperature of -75 DEG C to -65 DEG C; carrying out first tempering treatment of the stainless steel plate after the first vacuum quenching treatment for 55-65 min at the temperature of 560-650 DEG C, and then carrying out second vacuum quenching treatment of side parts of the stainless steel plate for preparing a cutting tool blade, wherein the second vacuum quenching treatment comprises the steps of successively carrying out second heat treatment for 18 to 22 min at the temperature of 1020 to 1070 DEG C, carrying out second air cooling treatment and carrying out second cryogenic treatment, in the second cryogenic treatment, successively controlling the cryogenic temperature to be -45 DEG C to -35 DEG C, -85 DEG C to -75 DEG C, -115 DEG C to -120 DEG C, and correspondingly, successively controlling the cryogenic time to be 18 to 22 min, 28 to 32 min and 115 to 125 min; and carrying out second tempering treatment for 110 to 130 min at the temperature of 200 to 300 DEG C, to obtain the stainless steel plate for the cutting tool. The cutting tool processed by the stainless steel plate provided by the method has the advantages of high strength and toughness.
Description
Technical field
The present invention relates to chemical machinery field, particularly to a kind of processing method of cutlery stainless steel plate, knife
Tool and its processing method.
Background technology
During power construction, cable cover(ing) handling implement, such as wire stripper, electricity are usually used
Cable main insulating layer stripper and wire external layer aluminium glue pelling-cutting device etc. carry out peeling process to cable conductor.Its
In, the effect of wire stripper is the insulated hull divesting cable conductor, its generally include handle, under
Handle, cutter and caging bolt.And cutter as impact peeling effect pith, to its material and plus
The disclosure of work method is very necessary.
Prior art generally adopts the cutter of stainless steel, and the following institute of processing method of this stainless steel knife
Show：Rustless steel is carried out hot rolling and makes intermediate；Then intermediate is carried out annealing, cold-rolling treatment is had
There is the cold-rolled strip of target thickness；Again cold-rolled strip carried out quenching successively, be tempered, wherein hardening heat model
Enclosing is 850-1100 DEG C, and the scope of high tempering is 560-650 DEG C, and the temperature range of lonneal is
150-300 DEG C, obtain cutlery stainless steel；Finally cutlery stainless steel carried out putting the first edge on a knife or a pair of scissors, cut off etc. at molding
Reason, that is, obtain stainless steel knife.
Inventor finds that prior art at least has problems with：
The stainless steel knife poor toughness of prior art offer, easy fracture, are unfavorable for the construction safety of operator.
Content of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of processing method of corrosion resistant plate,
Stainless steel knife and its processing method, effectively increase the toughness of cutter while ensureing cutter hardness.Tool
Body technique scheme is as follows：
In a first aspect, embodiments providing a kind of processing method of cutlery stainless steel plate, including：
Step a, hot rolling and cold-rolling treatment are carried out successively to corrosion resistant plate, obtain the corrosion resistant plate of pretreatment；
Step b, the corrosion resistant plate to described pretreatment carry out the first vacuum hardening process, and described first vacuum is quenched
Fire processes the first heat treated, the first air cooling process and the first subzero treatment including carrying out successively；
The temperature of described first heat treated is 900-1000 DEG C, and temperature retention time is 18-22min, described first
The temperature of subzero treatment is -75 DEG C to -65 DEG C, and the time is 25-35min；
Step c, the first temper that the corrosion resistant plate after the first vacuum hardening process is carried out, described first time
The temperature that fire is processed is 560-650 DEG C, and the time is 55-65min；
Step d, the sidepiece to the blade for preparing cutter on the corrosion resistant plate after described first temper enter
Row second vacuum hardening process, described second vacuum hardening process include carry out successively the second heat treated,
Second air cooling is processed and the second subzero treatment；
The temperature of described second heat treated is 1020-1070 DEG C, and temperature retention time is 18-22min；Described second
Subzero treatment is segmentation cooling-down type subzero treatment, including：Control cryogenic temperature to be -45 DEG C to -35 DEG C successively,
- 85 DEG C to -75 DEG C, -115 DEG C to -120 DEG C, accordingly, control the deep cooling time to be 18-22min successively,
28-32min、115-125min；
Step e, to described second vacuum hardening process after described sidepiece carry out the second temper, obtain knife
Tool corrosion resistant plate, the temperature of described second temper is 200-300 DEG C, and the time is 110-130min.
Specifically, preferably, in described step a, described corrosion resistant plate is 3Cr13 martensitic stain less steel
Plate.
Specifically, preferably, the thickness of the corrosion resistant plate of described pretreatment is 1.9-2.3mm.
Specifically, preferably, in described step b, the temperature of described first heat treated is 950 DEG C, protects
The warm time is 20min；The temperature of described first subzero treatment is -70 DEG C, and the time is 30min.
Specifically, preferably, after described first temper, the Rockwell hardness of corrosion resistant plate is
48-52HRC.
Specifically, preferably, in described step d, the temperature of described second heat treated is 1055 DEG C,
Temperature retention time is 20min；
During described second subzero treatment, cryogenic temperature is controlled to be -40 DEG C, -80 DEG C, -120 DEG C successively, right
Ying Di, controls the deep cooling time to be 20min, 30min, 120min successively.
Specifically, preferably, after described second temper, the Rockwell hardness of described sidepiece is
54-58HRC.
Second aspect, embodiments provides a kind of cutter, is added using described cutlery stainless steel plate
Work obtains.
The third aspect, embodiments provides the side using described cutlery stainless steel plate process tool
Method, including：Successively excision forming, polishing and polishing are carried out to described cutlery stainless steel plate, obtains
Described cutter.
Further, methods described also includes carrying out punching process to described cutter, to obtain on described cutter
Obtain installing hole.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The processing method of cutlery stainless steel plate provided in an embodiment of the present invention, by carrying out heat to corrosion resistant plate
Roll, cold rolling pretreatment it is ensured that the tissue of pretreated corrosion resistant plate is closely knit, improve intensity and hardness, change
It is apt to its mechanical property.Then processed by cold-rolled steel sheet is carried out with the first above-mentioned vacuum hardening, carry further
Its hardness high；Corrosion resistant plate after the first vacuum hardening is processed carries out the first temper, to reduce
Its fragility, reduces or eliminates its internal stress, thus improving its wearability, fatigue strength and toughness, and
Surely it is sized.Then, a sidepiece except this apparent surface of the steel plate after to the first temper
Carry out the second vacuum hardening to process and the second temper, to improve this further for the sidepiece preparing blade
Rigid, the mechanical property such as hardness, toughness.It can be seen that, by processing method provided in an embodiment of the present invention,
The cutlery stainless steel plate obtaining, is especially used for preparing the sidepiece of blade, it has excellent toughness concurrently thereon
And intensity, mechanical property is guaranteed.Had using the cutter that this cutlery stainless steel plate prepares simultaneously
High intensity and high tenacity, when using it for insulated conductor is carried out peeling process, under circumstances, for example
Under winter environment, all can effectively divest the insulated hull of insulated conductor, and itself will not rupture, and effectively carries
The high work efficiency of operator, and ensure its construction safety.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in embodiment description
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of cutter provided in an embodiment of the present invention.
Reference：
1 blade；
101 blades；
2 erecting beds；
201 installing holes.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Hardness and toughness are two important mechanical properties of corrosion resistant plate, and are used for divesting the insulation of insulated conductor
The stainless steel knife of skin, has certain requirement to hardness, and the insulated hull of especially winter insulated conductor is hardening,
Hardness requirement for stainless steel knife also increases, and this stainless steel knife also needs to higher toughness, this
Sample not easy fracture in operation, thus improve the work efficiency of operator, and ensures its construction peace
Entirely.For the problems referred to above, embodiments provide a kind of corrosion resistant plate, stainless steel knife and its processing
Method.
In a first aspect, embodiments providing a kind of processing method of cutlery stainless steel plate, the method
Comprise the following steps：
Step 101, hot rolling and cold-rolling treatment are carried out successively to corrosion resistant plate, obtain the corrosion resistant plate of pretreatment.
Step 102, the corrosion resistant plate to pretreatment carry out the first vacuum hardening process, and the first vacuum hardening is processed
Process and the first subzero treatment including the first heat treated carrying out successively, the first air cooling.
The temperature of the first heat treated is 900-1000 DEG C, and temperature retention time is 18-22min, the first subzero treatment
Temperature be -75 DEG C to -65 DEG C, the time be 25-35min.
Step 103, the first vacuum hardening is processed after corrosion resistant plate carry out the first temper, the first tempering
The temperature processing is 560-650 DEG C, and the time is 55-65min.
Step 104, the sidepiece to the blade for preparing cutter on the corrosion resistant plate after the first temper enter
Row second vacuum hardening process, second vacuum hardening process include carry out successively the second heat treated, second
Air cooling is processed and the second subzero treatment.
The temperature of the second heat treated is 1020-1070 DEG C, and temperature retention time is 18-22min；Second subzero treatment
For segmentation cooling-down type subzero treatment, including：Successively control cryogenic temperature be -45 DEG C to -35 DEG C, -85 DEG C to -75 DEG C,
- 115 DEG C to -120 DEG C, accordingly, the deep cooling time is controlled to be 18-22min, 28-32min, 115-125min successively.
Step 105, the second vacuum hardening is processed after sidepiece carry out the second temper, obtain cutter with not
Rust steel plate, the temperature of the second temper is 200-300 DEG C, and the time is 110-130min.
The processing method of cutlery stainless steel plate provided in an embodiment of the present invention, by carrying out heat to corrosion resistant plate
Roll, cold rolling pretreatment it is ensured that the tissue of pretreated corrosion resistant plate is closely knit, improve intensity and hardness, change
It is apt to its mechanical property.Then processed by cold-rolled steel sheet is carried out with the first above-mentioned vacuum hardening, carry further
Its hardness high；Corrosion resistant plate after the first vacuum hardening is processed carries out the first temper, to reduce
Its fragility, reduces or eliminates its internal stress, thus improving its wearability, fatigue strength and toughness, and
Surely it is sized.Then, a sidepiece except this apparent surface of the steel plate after to the first temper
Carry out the second vacuum hardening, to improve rigid, hardness, the toughness of this sidepiece for preparing blade further
Etc. mechanical property.It can be seen that, by processing method provided in an embodiment of the present invention, the cutlery stainless steel obtaining
Plate, is especially used for preparing the sidepiece of blade, it has excellent toughness and intensity concurrently, and mechanical property obtains thereon
To guarantee.Using the cutter that this cutlery stainless steel plate prepares, there is high intensity and high tenacity simultaneously, will
When it is used for insulated conductor is carried out peeling process, under circumstances, such as under winter environment, all can have
Effect divests the insulated hull of insulated conductor, and itself will not rupture, and effectively increases the work of operator
Efficiency, and ensure its construction safety.
Preferably, in step 101, corrosion resistant plate is 3Cr13 martensitic stainless steel.The present invention is implemented
The 3Cr13 that example adopts is a kind of typical martensitic chromium rustless steel, containing C, Cr, Mn, Si, P etc.,
Because its phosphorus content is higher, there is high rigidity and quenching degree, thus being widely used in cutter, and can be by quenching
Fire, the heat treatment method of tempering adjust its thermodynamic property.
Specifically, the hot rolling described in the embodiment of the present invention and cold rolling be technological means commonly used in the art.In heat
During rolling, the preferred hot-rolled temperature of the embodiment of the present invention is 1160 DEG C, and finishing temperature is 850 DEG C.By upper
State the hot rolling treatment of limit temperature, corrosion resistant plate can be made to organize, especially along the power of the tissue of rolling direction
Learn performance to be improved, so that corrosion resistant plate tissue is closely knit.The embodiment of the present invention adopts Frequency Induction Heating
Stove or circulation meshbeltfurnace, as the thermal source of hot rolling, have environmental protection, free of contamination advantage.By in room temperature
Under (20-25 DEG C), the corrosion resistant plate after hot rolling is carried out cold rolling, it can be made to produce very big plastic deformation,
Thus improving the yield point of corrosion resistant plate.Specifically, preferably, enterprising in two plate faces of corrosion resistant plate
The above-mentioned hot rolling of row and cold rolling pretreatment, in order to make the sidepiece being different from this two plate faces on corrosion resistant plate more
Closely knit, intensity is higher.
Specifically, in the embodiment of the present invention, the thickness of hot rolled and cold rolling pretreated corrosion resistant plate is
1.9-2.3mm, preferably 2.1mm.The embodiment of the present invention is by entering the thickness of pretreated corrosion resistant plate
Row is defined as above, and can not only meet the demand of actual tool dimension, and leaves surplus for follow-up polishing step,
Facilitate the molding of cutter.
In step 102, the temperature of the first heat treated is preferably 950 DEG C, and temperature retention time is preferably 20min；
The temperature of the first subzero treatment is preferably -70 DEG C, and the time is preferably 30min.
In the embodiment of the present invention, temperature retention time in heat-treatment process is effective with corrosion resistant plate to be processed
Alloying element contained by thickness, heating medium, steel, temperature, charging mode etc. are relevant.Its computing formula
As follows：
T=α × K × D (min)
Wherein, T is temperature retention time (min), and α is heating coefficient (min/mm), is typically based on steel grade, adds
The difference of hot mode to select its empirical value, for example, utilizes cabinet-type electric furnace to heat carbon steel, its heating coefficient
Conventional 1min/mm, using salt bath stove heat carbon steel, its heating coefficient commonly uses 0.25-0.33min/mm, and
The heating coefficient of steel alloy is 1.3-1.8 times of the heating coefficient of carbon steel under similarity condition, and alloying element
Content is more, and its heating coefficient is bigger, but when heating-up temperature is more than 1000 DEG C, heating coefficient and effectively
Thickness is inversely proportional to.The heating coefficient that the embodiment of the present invention adopts is 1.2-1.6.K is corrosion resistant plate to be processed
Correction factor during heating, the correction factor that the embodiment of the present invention adopts is 1-4.D is rustless steel to be processed
The effective thickness of plate.
Air cooling described in the embodiment of the present invention processes and is state of the art, and for example it can be in room temperature
Under (20-25 DEG C), pending corrosion resistant plate is placed in the air and is cooled to 20 DEG C.Due to quick cooling meeting
Lead to produce internal stress inside corrosion resistant plate, and when internal stress reaches to a certain degree, corrosion resistant plate can occur
Distort, deforming, even ftractureing, thus reducing the hardness of corrosion resistant plate, wearability and service life, therefore
In step 102, the corrosion resistant plate after the first air cooling is processed carries out the first subzero treatment.Specifically, first
The temperature of subzero treatment is -75 DEG C to -65 DEG C, preferably -70 DEG C, and the time of the first subzero treatment is
25-35min, preferably 30min.By being defined as above to the temperature and time of the first subzero treatment, from
And so that the micropore of corrosion resistant plate and the part of stress concentration is produced Plastic Flow and become structure refinement, thus
Eliminate internal stress, and separate out a large amount of ultra micro fine carbides in low temperature so that the intensity of corrosion resistant plate improves,
Increase its wearability and rigidity simultaneously.
Specifically, in step 103, the corrosion resistant plate after the first vacuum hardening is processed is carried out at the first tempering
Reason, the temperature of the first temper is 560-650 DEG C, preferably 650 DEG C, and the time of the first temper is
55-65min, preferably 60min.Due to through the first vacuum hardening process, the fragility of corrosion resistant plate and hardness
All increase, so, the embodiment of the present invention passes through the first temper, to reduce the fragility of corrosion resistant plate, to subtract
Less or eliminate its internal stress, improve its toughness, suitably reduce its hardness simultaneously, so that follow-up machining.
Specifically, the Rockwell hardness of the corrosion resistant plate after the first temper is 48-52HRC, preferably
50HRC.Wherein, HRC is to bore, using 150kg load and diamond, the hardness that injector is tried to achieve, for hardness
Higher material, such as hardened steel.Corrosion resistant plate after to the first temper for the embodiment of the present invention
Rockwell hardness is defined as above, and thinks that follow-up second vacuum hardening process improves its hardness again and prepares.
In step 104, the corrosion resistant plate after first time temper is used for prepare the sidepiece of the blade of cutter
It is the arbitrary sidepiece vertical with hot rolling and cold rolling direction, that is, this sidepiece a Bian Wei represents this rustless steel thickness of slab
The side of degree.By the second vacuum hardening process is carried out to this sidepiece, to improve the hardness of this sidepiece further.
Specifically, the second vacuum hardening processes the second heat treated, the second air cooling process including carrying out successively
And second subzero treatment.Wherein, the temperature of the second heat treated is 1020-1070 DEG C, preferably 1055 DEG C,
Temperature retention time is 18-22min, preferably 20min.Second subzero treatment is segmentation cooling-down type subzero treatment,
Concrete operation step is as follows：1) cryogenic temperature is controlled to be -45 DEG C to -35 DEG C, preferably -40 DEG C, and in this temperature
18-22min, preferably 20min is kept under degree scope；2) cryogenic temperature is controlled to be -85 DEG C to -75 DEG C, excellent
Elect -80 DEG C as, and keep 28-32min, preferably 30min in this temperature range；3) control cryogenic temperature
For -115 DEG C to -120 DEG C, preferably -120 DEG C, and keep 115-125min in this temperature range, preferably
120min.The embodiment of the present invention is by carrying out as defined above second to the sidepiece being used as blade on corrosion resistant plate
Subzero treatment, it is possible to increase the wearability of this sidepiece and dimensional stability, and ensure that it is not broken.
In step 105, the sidepiece after the second vacuum hardening is processed carries out the second temper, obtains cutter
Use corrosion resistant plate.Wherein, the temperature of the second temper is 200-300 DEG C, preferably 250 DEG C, and the time is
110-130min, preferably 120min.By being defined as above to the second temperature and time being tempered, make
Must this be used for preparing the base of high rigidity after keeping the second vacuum hardening for the sidepiece of the blade of cutter and wearability
On plinth, reduce its stress, improve its toughness further.
After the second temper, the Rockwell hardness of the sidepiece for preparing the blade of cutter is 54-58HRC,
It is preferably 56HRC.When knife edge part has above-mentioned Rockwell hardness, it can not only be effective for divesting insulation
The insulated hull of wire, and not easy to crack at low ambient temperatures.
Wherein, the vacuum hardening that the embodiment of the present invention is adopted is processed as technological means commonly used in the art, its
It is broadly divided into air quenching and liquid quenches two kinds, and the typical media that liquid is quenched has water and oil.The embodiment of the present invention is using oil
Carry out the first vacuum hardening as medium to process and the second vacuum hardening process, it is due to rate of cooling, through hardening
Diameter is little, so that corrosion resistant plate is unlikely to deform cracking, is therefore applied to steel alloy and undersized carbon-steel parts,
And it is easy and simple to handle, it is easy to accomplish mechanization.
Second aspect, embodiments provides a kind of cutter, is obtained using the processing of cutlery stainless steel plate.
This cutter has the characteristic of corrosion resistant plate, i.e. high rigidity, high tenacity, can effectively divest the exhausted of insulated conductor
Edge skin, can prevent the fracture of cutter itself again.
The third aspect, embodiments provides the method using cutlery stainless steel plate process tool, bag
Include：Successively excision forming, polishing and polishing are carried out to cutlery stainless steel plate, obtains cutter.
Wherein, the structure of the cutter obtained by carrying out excision forming to cutlery stainless steel plate can be that ability is normal
The various structures seen, when the cutter for insulated hull peeler, its structure preferably as shown in Figure 1, should
Cutter includes the blade 1 being sequentially connected with and erecting bed 2, and the wedge shaped structure of blade 1 (can be understood as blade 1
It is in isosceles triangle in the plan view of its thickness direction), its thickness top the thinnest is blade 101, in length
The erecting bed 2 of cube shape structure is arranged on the bottom of blade 1, is provided with multiple, such as 2 installations
Hole 201.It is understood that blade and the preferably integrated structure of erecting bed.
The cutter of excision forming is polished and polishing is technological means commonly used in the art.To blade
Polished so as to thickness is 0.5-1mm further, when facilitating the use the insulated hull that it divests insulated conductor,
Compression area is less, thus when operator use equal strength, the insulated hull of insulated conductor is subject to
Pressure is bigger, thus being more easy to be stripped.And polishing is in order that the roughness of tool surface reduces, to obtain
Light, even curface.
Further, the method also includes carrying out punching process to cutter, to obtain on the erecting bed 2 of cutter
Obtain installing hole 201, in order to Cutting tool installation manner is insulating on peeler.This installing hole 201 can be circular logical
Hole or any hole commonly used in the art, for example, according to the difference of geometric properties, it is permissible
For through hole, blind hole, shoulder hole, taper hole, different according to geometry, it can be circular hole, non-circular hole.
By installing hole 201, this cutter is attached with insulation peeler.
The present invention will be further described through by specific embodiment.
Corrosion resistant plate employed in following examples is 3Cr13 martensitic stainless steel.
Embodiment 1
Present embodiments provide a kind of processing method of cutlery stainless steel plate, concrete operation step is as follows：
1) hot rolling is carried out to corrosion resistant plate, hot-rolled temperature is 1160 DEG C, finishing temperature is 850 DEG C, then to not
Rust steel plate carries out cold-rolling treatment, obtains the corrosion resistant plate of pretreatment, and its thickness is 1.9mm.
2) corrosion resistant plate of pretreatment is carried out with the first vacuum hardening process, the first vacuum hardening process include according to
Secondary the first heat treated carrying out, the first air cooling are processed and the first subzero treatment.Using Medium Frequency Induction Heating Furnace
Carry out the first heat treated, temperature is 900 DEG C, temperature retention time is 18min, the temperature of the first subzero treatment is
- 75 DEG C, the time is 25min.
3) corrosion resistant plate after the first vacuum hardening being processed carries out the first temper, the first temper
Temperature is 560 DEG C, and the time is 55min, obtains the corrosion resistant plate that Rockwell hardness is 48HRC.
4) select this corrosion resistant plate arbitrary sidepiece vertical with hot rolling and cold rolling direction as the knife as cutter
Sword, carries out the second vacuum hardening process, the second vacuum hardening process the second heat treated including carrying out successively,
Second air cooling is processed and the second subzero treatment.The temperature of the second heat treated is 1020 DEG C, and temperature retention time is
18min.Second air cooling is processed as room temperature and is cooled to 20 DEG C.Second subzero treatment is segmentation cooling-down type subzero treatment,
Including：Control cryogenic temperature to be -45 DEG C, -85 DEG C, -115 DEG C successively, accordingly, control the deep cooling time successively
For 18min, 28min, 115min.
5) sidepiece as blade after the second vacuum hardening being processed carries out the second temper, the second tempering
The temperature processing is 200 DEG C, and the time is 110min, obtains cutlery stainless steel plate, and it is used as the side of blade
The Rockwell hardness in portion is 54HRC.
Embodiment 2
Present embodiments provide a kind of processing method of cutlery stainless steel plate, concrete operation step is as follows：
1) hot rolling is carried out to corrosion resistant plate, hot-rolled temperature is 1160 DEG C, finishing temperature is 850 DEG C, then to not
Rust steel plate carries out cold-rolling treatment, obtains the corrosion resistant plate of pretreatment, and its thickness is 2.0mm.
2) corrosion resistant plate of pretreatment is carried out with the first vacuum hardening process, the first vacuum hardening process include according to
Secondary the first heat treated carrying out, the first air cooling are processed and the first subzero treatment.Carried out using circulation meshbeltfurnace
First heat treated, temperature is 920 DEG C, and temperature retention time is 19min, and the temperature of the first subzero treatment is -72 DEG C,
Time is 28min.
3) corrosion resistant plate after the first vacuum hardening being processed carries out the first temper, the first temper
Temperature is 580 DEG C, and the time is 58min, obtains the corrosion resistant plate that Rockwell hardness is 49HRC.
4) select this corrosion resistant plate arbitrary sidepiece vertical with hot rolling and cold rolling direction as the knife as cutter
Sword, carries out the second vacuum hardening process, the second vacuum hardening process the second heat treated including carrying out successively,
Second air cooling is processed and the second subzero treatment.The temperature of the second heat treated is 1035 DEG C, and temperature retention time is
19min.Second air cooling is processed as room temperature and is cooled to 20 DEG C.Second subzero treatment is segmentation cooling-down type subzero treatment,
Including：Control cryogenic temperature to be -42 DEG C, -83 DEG C, -113 DEG C successively, accordingly, control the deep cooling time successively
For 19min, 29min, 116min.
5) sidepiece as blade after the second vacuum hardening being processed carries out the second temper, the second tempering
The temperature processing is 220 DEG C, and the time is 115min, obtains cutlery stainless steel plate, and it is used as the side of blade
The Rockwell hardness in portion is 55HRC.
Embodiment 3
Present embodiments provide a kind of processing method of cutlery stainless steel plate, concrete operation step is as follows：
1) hot rolling is carried out to corrosion resistant plate, hot-rolled temperature is 1160 DEG C, finishing temperature is 850 DEG C, then to not
Rust steel plate carries out cold-rolling treatment, obtains the corrosion resistant plate of pretreatment, and its thickness is 2.1mm.
2) corrosion resistant plate of pretreatment is carried out with the first vacuum hardening process, the first vacuum hardening process include according to
Secondary the first heat treated carrying out, the first air cooling are processed and the first subzero treatment.Using Medium Frequency Induction Heating Furnace
Carry out the first heat treated, temperature is 950 DEG C, temperature retention time is 20min, the temperature of the first subzero treatment is
- 70 DEG C, the time is 30min.
3) corrosion resistant plate after the first vacuum hardening being processed carries out the first temper, the first temper
Temperature is 650 DEG C, and the time is 60min, obtains the corrosion resistant plate that Rockwell hardness is 50HRC.
4) select this corrosion resistant plate arbitrary sidepiece vertical with hot rolling and cold rolling direction as the knife as cutter
Sword, carries out the second vacuum hardening process, the second vacuum hardening process the second heat treated including carrying out successively,
Second air cooling is processed and the second subzero treatment.The temperature of the second heat treated is 1055 DEG C, and temperature retention time is
20min.Second air cooling is processed as room temperature and is cooled to 20 DEG C.Second subzero treatment is segmentation cooling-down type subzero treatment,
Including：Control cryogenic temperature to be -40 DEG C, -80 DEG C, -120 DEG C successively, accordingly, control the deep cooling time successively
For 20min, 30min, 120min.
5) sidepiece as blade after the second vacuum hardening being processed carries out the second temper, the second tempering
The temperature processing is 250 DEG C, and the time is 120min, obtains cutlery stainless steel plate, and it is used as the side of blade
The Rockwell hardness in portion is 56HRC.
Embodiment 4
Present embodiments provide a kind of processing method of cutlery stainless steel plate, concrete operation step is as follows：
1) hot rolling is carried out to corrosion resistant plate, hot-rolled temperature is 1160 DEG C, finishing temperature is 850 DEG C, then to not
Rust steel plate carries out cold-rolling treatment, obtains the corrosion resistant plate of pretreatment, and its thickness is 2.3mm.
2) corrosion resistant plate of pretreatment is carried out with the first vacuum hardening process, the first vacuum hardening process include according to
Secondary the first heat treated carrying out, the first air cooling are processed and the first subzero treatment.Carried out using circulation meshbeltfurnace
First heat treated, temperature is 1000 DEG C, and temperature retention time is 22min, and the temperature of the first subzero treatment is -65 DEG C,
Time is 35min.
3) corrosion resistant plate after the first vacuum hardening being processed carries out the first temper, the first temper
Temperature is 630 DEG C, and the time is 65min, obtains the corrosion resistant plate that Rockwell hardness is 52HRC.
4) select this corrosion resistant plate arbitrary sidepiece vertical with hot rolling and cold rolling direction as the knife as cutter
Sword, carries out the second vacuum hardening process, the second vacuum hardening process the second heat treated including carrying out successively,
Second air cooling is processed and the second subzero treatment.The temperature of the second heat treated is 1070 DEG C, and temperature retention time is
22min.Second air cooling is processed as room temperature and is cooled to 20 DEG C.Second subzero treatment is segmentation cooling-down type subzero treatment,
Including：Control cryogenic temperature to be -35 DEG C, -75 DEG C, -120 DEG C successively, accordingly, control the deep cooling time successively
For 22min, 32min, 125min.
5) sidepiece as blade after the second vacuum hardening being processed carries out the second temper, the second tempering
The temperature processing is 300 DEG C, and the time is 130min, obtains cutlery stainless steel plate, and it is used as the side of blade
The Rockwell hardness in portion is 55HRC.
Embodiment 5
It is utilized respectively the cutlery stainless steel plate process tool of embodiment 1- embodiment 4 offer, concrete operations walk
Suddenly as follows：
1) cutlery stainless steel plate is cut so as to be in cuboid-type, its a length of 50mm, a width of 40mm,
Thick is 2mm.Wherein, the corrosion resistant plate of above-mentioned cuboid-type is used as by the sidepiece that broadside and webbing form
The blade of cutter.
2) by the direction along the length of corrosion resistant plate at corrosion resistant plate blade from above-mentioned sidepiece be divided into 30mm and
Two cuboids of 20mm, are respectively intended to prepare blade 1 and erecting bed 2, carry out forming processes to blade 1,
It is made to be in isosceles triangle from the view of thickness direction, as shown in Figure 1.The thickness of blade 101 is
0.5-1mm.
3) blade 1, erecting bed 2 are polished and polishing respectively.
4) erecting bed 2 being carried out with electroporation, obtaining installing hole 201, thus obtaining the desired knife of the present embodiment
Tool.
The hardness and toughness of the cutter that the present embodiment provides is measured, result shows, using embodiment 1-
The Rockwell hardness of the cutter that the cutlery stainless steel plate processing that embodiment 4 provides obtains all reaches 56HRC, impact
Toughness all reaches 100J/cm2.
By installing hole 201, each Cutting tool installation manner that the present embodiment is provided, on covered wire peeler, is used
Carry out the insulated hull to insulated conductor and carry out peeling process, shown using result, be 20 points in each use time
On the premise of clock, each cutter that the present embodiment provides all can use at least 20000 times.Additionally, in temperature
In environment less than subzero 10 DEG C, each cutter that the present embodiment provides all can use at least 720 times.Make
With during, insulated hull all can easily be divested by above each cutter, and do not have rupture or wiredrawn edge phenomenon
Occur.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the scope of the invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement made etc., all should comprise
Within protection scope of the present invention.
Claims (10)
1. a kind of processing method of cutlery stainless steel plate, including：
Step a, hot rolling and cold-rolling treatment are carried out successively to corrosion resistant plate, obtain the corrosion resistant plate of pretreatment；
Step b, the corrosion resistant plate to described pretreatment carry out the first vacuum hardening process, and described first vacuum is quenched
Fire processes the first heat treated, the first air cooling process and the first subzero treatment including carrying out successively；
The temperature of described first heat treated is 900-1000 DEG C, and temperature retention time is 18-22min, described first
The temperature of subzero treatment is -75 DEG C to -65 DEG C, and the time is 25-35min；
Step c, the first temper that the corrosion resistant plate after the first vacuum hardening process is carried out, described first time
The temperature that fire is processed is 560-650 DEG C, and the time is 55-65min；
Step d, the sidepiece to the blade for preparing cutter on the corrosion resistant plate after described first temper enter
Row second vacuum hardening process, described second vacuum hardening process include carry out successively the second heat treated,
Second air cooling is processed and the second subzero treatment；
The temperature of described second heat treated is 1020-1070 DEG C, and temperature retention time is 18-22min；Described second
Subzero treatment is segmentation cooling-down type subzero treatment, including：Control cryogenic temperature to be -45 DEG C to -35 DEG C successively,
- 85 DEG C to -75 DEG C, -115 DEG C to -120 DEG C, accordingly, control the deep cooling time to be 18-22min successively,
28-32min、115-125min；
Step e, to described second vacuum hardening process after described sidepiece carry out the second temper, obtain knife
Tool corrosion resistant plate, the temperature of described second temper is 200-300 DEG C, and the time is 110-130min.
2. method according to claim 1 is it is characterised in that in described step a, described rustless steel
Plate is 3Cr13 martensitic stainless steel.
3. method according to claim 2 is it is characterised in that the thickness of the corrosion resistant plate of described pretreatment
Spend for 1.9-2.3mm.
4. method according to claim 1 is it is characterised in that in described step b, described first adds
The temperature of heat treatment is 950 DEG C, and temperature retention time is 20min；The temperature of described first subzero treatment is -70 DEG C,
Time is 30min.
5. method according to claim 1 is it is characterised in that after described first temper, institute
The Rockwell hardness stating corrosion resistant plate is 48-52HRC.
6. method according to claim 1 is it is characterised in that in described step d, described second adds
The temperature of heat treatment is 1055 DEG C, and temperature retention time is 20min；
During described second subzero treatment, cryogenic temperature is controlled to be -40 DEG C, -80 DEG C, -120 DEG C successively, right
Ying Di, controls the deep cooling time to be 20min, 30min, 120min successively.
7. method according to claim 1 is it is characterised in that after described second temper, institute
The Rockwell hardness stating sidepiece is 54-58HRC.
8. a kind of cutter, is obtained using the cutlery stainless steel plate processing any one of claim 1-7.
9. the method utilizing the cutlery stainless steel plate process tool any one of claim 1-7, bag
Include：Cutlery stainless steel plate any one of claim 1-7 is carried out successively excision forming, polishing and
Polishing, obtains described cutter.
10. method according to claim 9 is it is characterised in that methods described is also included to described knife
Tool carries out punching process, to obtain installing hole on described cutter.
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Cited By (3)
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| CN108480942A (en) * | 2018-04-02 | 2018-09-04 | 冯仕敏 | A kind of plum knife processing technology |
| CN109504839A (en) * | 2019-01-08 | 2019-03-22 | 苏州腾凯金属材料有限公司 | A kind of tempering method for treating of SKD11 cutter |
| CN111979389A (en) * | 2020-09-21 | 2020-11-24 | 上海交通大学 | Ferrite low-temperature steel forging and low-temperature deep cooling preparation method thereof |
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| WO2001068933A2 (en) * | 2000-03-14 | 2001-09-20 | The Timken Company | High performance carburizing stainless steel for high temperature use |
| CN101693943A (en) * | 2009-10-13 | 2010-04-14 | 上海电机学院 | High speed steel tool heat treatment method |
| CN102016083A (en) * | 2008-02-20 | 2011-04-13 | 奎斯泰克创新公司 | Lower-cost, ultra-high-strength, high-toughness steel |
| CN102126119A (en) * | 2011-03-25 | 2011-07-20 | 重庆大足永红厨业有限公司 | Method for making kitchen knife |
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| WO2001068933A2 (en) * | 2000-03-14 | 2001-09-20 | The Timken Company | High performance carburizing stainless steel for high temperature use |
| CN102016083A (en) * | 2008-02-20 | 2011-04-13 | 奎斯泰克创新公司 | Lower-cost, ultra-high-strength, high-toughness steel |
| CN101693943A (en) * | 2009-10-13 | 2010-04-14 | 上海电机学院 | High speed steel tool heat treatment method |
| CN102126119A (en) * | 2011-03-25 | 2011-07-20 | 重庆大足永红厨业有限公司 | Method for making kitchen knife |
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| CN108480942A (en) * | 2018-04-02 | 2018-09-04 | 冯仕敏 | A kind of plum knife processing technology |
| CN109504839A (en) * | 2019-01-08 | 2019-03-22 | 苏州腾凯金属材料有限公司 | A kind of tempering method for treating of SKD11 cutter |
| CN111979389A (en) * | 2020-09-21 | 2020-11-24 | 上海交通大学 | Ferrite low-temperature steel forging and low-temperature deep cooling preparation method thereof |
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| Publication number | Publication date |
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| CN106381376B (en) | 2018-04-03 |
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