CN107034348A - The western-style food tool heat treatment method and its device of 2CR13 materials - Google Patents
The western-style food tool heat treatment method and its device of 2CR13 materials Download PDFInfo
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- CN107034348A CN107034348A CN201710324334.8A CN201710324334A CN107034348A CN 107034348 A CN107034348 A CN 107034348A CN 201710324334 A CN201710324334 A CN 201710324334A CN 107034348 A CN107034348 A CN 107034348A
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- cutter
- heating zone
- pallet
- zone
- cooling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention provides a kind of western-style food tool heat treatment method of 2CR13 materials, step：The pre-preparation that A, tool blank are put, B, the rest area for being put into guipure, C, into heating zone, and be filled with nitrogen, is cooled into cooling zone at D, and step A is specially：Workman's hand grabs a cutter and is put into empty pallet, and several times of flat wiping back and forth on the cutter of pallet with palm, cutter is pressed into clip slot in turn, makes to form two to five millimeters of spacing between two neighboring cutter, completes the loading cutter work of a pallet；And continue the loading cutter operation of the next pallet of progress successively, the inventive method is simple, easy to use, and spacing is so that 2CR13 materials improve thermal effectiveness between can effectively keeping each western-style food cutter, and appliance arrangement is simple in construction, beneficial to a wide range of popularization and application.
Description
Technical field
The invention belongs to technical field of metal heat treatment, the western-style food tool heat treatment method of 2CR13 materials is specifically related to
And its device.
Background technology
2Cr13 belongs to martensitic stain less steel, is magnetic, hardness is good.Its chemical analysis is carbon C：0.16~0.25；Silicon Si：≤
1.00；Manganese Mn：≤1.00；Sulphur S：≤0.030；Phosphorus P：≤0.035；Chromium Cr：12.00~14.00；Nickel：Allow containing≤
0.60。
Hardness is high under 2Cr13 stainless steel as-quencheds, and corrosion resistance is good.It is many to be used to make cutter, it is " cutlery level " geneva
Body steel, is also used for surgical cutter, and the scope of application is very wide.2Cr13 density is 7.75g/cm3；2Cr13 quenching hardness：Typically
2Cr13 hardening heat is at 980~1050 DEG C, and hardness will heat oil quenchings significantly lower than 1050 DEG C when taking 980 DEG C of heating oil quenchings,
Hardness is 45~50HRC after 980 DEG C of oil quenchings, and hardness wants high 2HRC after 1050 DEG C of oil quenchings.But the tissue obtained after 1050 DEG C of quenchings
Crystal grain is thicker, and fragility is big.
The prior art being heat-treated for martensitic stain less steel is as follows, the A of China Patent Publication No. CN 102978535 horse
The heat treatment method of family name's body anti-bacteria stainless steel, it comprises the following steps：（1）1000-1100 DEG C of solution treatment 0.5-1 hours, oil
It is cooled to room temperature；（2）2-6 hours are incubated at 500-800 DEG C, room temperature is air-cooled to；（3）980-1020 DEG C of 3-10 points of solution treatment
Clock, oil cooling to room temperature；（4）150-250 DEG C is incubated 1-2 hours, is air-cooled to room temperature.This martensite antimicrobial stainless steel is used to make
Make sanitary apparatus, food utensil, tableware, cutlery or medical devices call high intensity, the stainless steel product of high rigidity.Chinese patent
Publication number CN203269986U discloses stainless steel tableware heat-treatment furnace feed arrangement, including is arranged on heat-treatment furnace charging aperture
Feed and be provided with regulation charging on the charging steel band that extension in heat treated stove is provided with retaining groove, charging retaining groove, charging retaining groove
The height adjustment mechanism of the gradient.The A of China Patent Publication No. CN 104152655 disclose a kind of heat-resisting bin of heat treatment, and it is tied
Structure is groined type, and the heat-resisting bin of heat treatment is casting, and the bin material contains high temperature alloy.
The material for making western-style food cutter now largely uses 2cr13 materials, because the material is than 2Cr13N 2Cr13Ni
Price it is low so favored by vast tableware factory, but the material（2Cr13）Decay resistance can not show a candle to 2Cr13N and
2Cr13NI's is excellent, annoyings each tableware manufacturing firm always for a long time.Current western-style food cutter is when entering heating zone
Wait, be that tool blank is carried by pallet, these blanks are packed together, sticked to each other, hot place is carried out entering heating zone
When reason, cause many tableware heat treatment degrees not enough and then cause percent defective to increase.In addition, the side of existing Technology for Heating Processing
Method can also be impacted to the increase of percent defective.For this reason, it may be necessary to for the western-style food tool heat treatment method and device of 2CR13 materials
It is improved.
The content of the invention
It is easy to use it is an object of the invention to provide a kind of method is simple, can effectively keep each western-style food cutter it
Between spacing improve thermal effectiveness in favor of 2CR13 materials, and appliance arrangement is simple in construction, beneficial to a wide range of popularization and application
The western-style food tool heat treatment method and its device of a kind of 2CR13 materials.
To solve the above problems, the invention provides a kind of western-style food tool heat treatment method of 2CR13 materials, wherein, bag
Include following steps：
The pre-preparation that A, tool blank are put
B, the rest area for being put into guipure
C, into heating zone, and be filled with nitrogen
D, cooled into cooling zone
Cutter sorting after E, heat treatment, the pallet vacated proceeds step A operation.
Further, step A is specially：Workman's hand grabs a cutter and is put into empty pallet, with palm on the cutter of pallet
Several times of flat wiping back and forth, cutter is pressed into clip slot in turn, is made to form two to five millimeters of spacing between two neighboring cutter, is completed one
The loading cutter work of pallet；And the loading cutter for carrying out next pallet continued successively is operated,
Further, multiple pallets for having been charged into cutter are put the rest area of guipure by step B, and guipure brings pallet into stove
Body, sequentially passes through the heating zone and cooling zone of body of heater, and the speed of service of guipure is：Heating zone length/20 minute=guipure movement speed
Degree.
Further, step C is that the first heating zone is preheated, and the second heating zone, the 3rd heating zone are heating process
Heat preservation zone, temperature is respectively：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd 1070 DEG C of heating zone, pallet exists
The run duration of whole heating zone is 20 minutes.
Further, ammonia is filled with ammonia dore furnace by ammonia tank, and ammonia dore furnace ammonia after 800 degree are heated is decomposed
Into the mixed gas of hydrogen and nitrogen, wherein 75%H2,25%N2, H2 and N2 are heated by gas inlet pipe into the first of body of heater
In area, H2 reduces the air in body of heater heating zone, heating zone is formd an environment protected by N2, product is in this environment
In lower heating process, the spacing between cutter on pallet makes nitrogen fully surround the cutter being heat-treated, and is prevented effectively from surface
It is oxidized.
Further, the body of heater of cooling zone is made up of double-skin duct, is constituted in the middle of double-skin duct by cooling water circulation cold
But the temperature of the cooling water in area, cooling zone is 15-20 degrees Celsius, the cutter that guipure delivery tray enters on cooling zone, pallet
Between spacing be beneficial to cutter is radiated, make cooling zone export tool temperature be less than 60-80 degrees Celsius.
Purpose to better implement the present invention, the invention also discloses the western-style food tool heat treatment method institute of 2CR13 materials
Annealing device, including frame, body of heater, ammonia tank, ammonia dore furnace, cooling tower and circulating water pool, the two end axles of frame
Roll shaft is connected with, upper rack, which is fixed with body of heater, roll shaft, is covered with guipure, guipure passes through body of heater, one of roll shaft passes through electricity
Machine is driven and then drives guipure motion, wherein, body of heater is divided into heating zone and cooling zone, and the first heating zone, second are divided into heating
Some heating carbon-points are plugged and connected with heating zone, the 3rd heating zone, the wall of heating zone, the guipure shape of heating zone side is moved to
Into rest area, be placed with multiple pallets on rest area, the left and right sides of pallet is integrally formed to be provided with backplate, pallet it is upper
Side is integrally formed, and to be provided with multiple teeth convex, clip slot is constituted between two neighboring tooth is convex, clip slot is used to be embedded in cutter and then make
Spacing between two neighboring cutter is 2-5mm.
Further, ammonia tank is connected on ammonia dore furnace, pipeline by pipeline and is provided with safety valve and pressure valve, ammonia
The outer wrap of the flue of gas dore furnace has heating furnace silk, and heating furnace silk is used to flue is heated into 800 degrees Celsius and then makes ammonia
Gas is decomposed into the mixture of nitrogen and hydrogen, and the mixture of nitrogen and hydrogen is filled into the first heating of body of heater by gas inlet pipe
In area and then by air discharge whole heating zone, the air in the hydrogen reducing heating zone of body of heater makes heating zone form one
The individual environment protected by nitrogen, product is in such circumstances in heating process, and the spacing between cutter on pallet makes nitrogen abundant
The cutter being heat-treated is surrounded, surface is prevented effectively from and is oxidized.
Further, the cooling zone of body of heater is double-decker, and cooling zone interior circulation has cooling water, and circulating water pool passes through water pump
Cooling water is pumped into cooling zone, cooling tower, circulating water pool, water pump and cooling zone constitute cooling water circulation passageway and then ensured cold
But the water temperature of the cooling water in area is 15-20 degrees Celsius, and guipure drives the pallet for being loaded with cutter by heating zone and cooling zone, support
The spacing between cutter on disk is beneficial to make cutter radiate, and the temperature of the cutter behind cooling zone is less than 60-80 degrees Celsius, plus
Hot zone temperature is respectively：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd 1070 DEG C of heating zone, pallet is whole
The run duration of heating zone is 20 minutes.
Further, the metallographic microscope of the cutter after the present apparatus is heat-treated is shown as：Martensite and a small amount of disperse
Point-like carbide.（Apparatus and method of the present invention is effectively increased after the decay resistance of 2CR13 materials, common heat treatment
Cutter is shown as martensite+granule carbonide under metallographic microscope）.
Further, cooling circulating water water consumption about 3m3/h.
Advantages of the present invention is that method is simple, and easy to use, spacing is with profit between can effectively keeping each western-style food cutter
Thermal effectiveness is improved in 2CR13 materials, and appliance arrangement is simple in construction, beneficial to a wide range of popularization and application, is specially：1st, originally
Invention carries tool blank by pallet, moreover, the spacing between tool blank quickly can be adjusted to 2-5mm,
The effect that this spacing is produced is huge, is both surrounded entirely by nitrogen beneficial to making cutter when being filled with nitrogen, it is to avoid in heating process
Oxidation, moreover, in cooling procedure, being capable of fast cooling, raising production efficiency, rate of reducing the number of rejects and seconds.2nd, the Jin Xiangfa of cutter is made
The metallographic microscope of cutter of the changing after the present apparatus is heat-treated is shown as：Martensite and a small amount of disperse point-like carbide.
（It is aobvious in metallographic that apparatus and method of the present invention effectively increases the cutter after the decay resistance of 2CR13 materials, common heat treatment
Martensite+granule carbonide is shown as under micro mirror）.3rd, percent defective reduces 25% or so.
Brief description of the drawings：
Fig. 1 is the schematic perspective view of the pallet of the present invention.
The vertical view state figure that Fig. 2 loads after cutter for the pallet of the present invention.
Fig. 3 is annealing device schematic diagram of the invention.
Fig. 4 is heat treatment schematic flow sheet of the invention.
Fig. 5 carries out the test specimens of the comparative experiments of Metallographic Analysis after being heat-treated for the present invention with prior art.
Fig. 6 is the Metallographic Analysis of sample of the present invention.
Fig. 7 is the Metallographic Analysis of prior art sample.
Accompanying drawing is identified：
1st, clip slot 2, tooth convex 3, pallet 4, backplate
5th, cutter 6, rest area 7, flue 8, heating carbon-point
9th, the first heating zone 10, the second heating zone 11, the 3rd heating zone 12, gas inlet pipe
13rd, heating furnace silk 14, ammonia dore furnace 15, flue 16, pressure valve
17th, safety valve 18, ammonia tank 19, cooling tower 20, circulating water pool
21st, water pump 22, frame 23, roll shaft 25, cooling zone
26th, body of heater 27, guipure
Embodiment
As Figure 1-4, Fig. 1 is the schematic perspective view of the pallet of the present invention.Fig. 2 loads bowing after cutter for the pallet of the present invention
Depending on state diagram.Fig. 3 is annealing device schematic diagram of the invention.Fig. 4 is heat treatment schematic flow sheet of the invention.
The western-style food tool heat treatment method of the 2CR13 materials of the present invention, wherein, comprise the following steps：
The pre-preparation that A, tool blank are put
B, the rest area for being put into guipure
C, into heating zone, and be filled with nitrogen
D, cooled into cooling zone
Cutter sorting after E, heat treatment, the pallet vacated proceeds step A operation.
Step A is specially：Workman's hand grabs a cutter and is put into empty pallet, and with palm, flat wiping is several back and forth on the cutter of pallet
Time, cutter is pressed into clip slot in turn, is made to form two to five millimeters of spacing between two neighboring cutter, is completed the loading of a pallet
Cutter works；And the loading cutter for carrying out next pallet continued successively is operated,
Multiple pallets for having been charged into cutter are put the rest area of guipure by step B, and guipure is brought pallet into body of heater, passed through successively
The heating zone and cooling zone of body of heater are crossed, the speed of service of guipure is：Heating zone length/20 minute=guipure translational speed.
Step C is that the first heating zone is preheated, the second heating zone, the heat preservation zone that the 3rd heating zone is heating process, temperature
Degree is respectively：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd 1070 DEG C of heating zone, pallet is in whole heating zone
Run duration be 20 minutes.Ammonia is filled with ammonia dore furnace, ammonia dore furnace ammonia point after 800 degree are heated by ammonia tank
Solution adds into the mixed gas of hydrogen and nitrogen, wherein 75%H2,25%N2, H2 and N2 by gas inlet pipe into the first of body of heater
In hot-zone, H2 reduces the air in body of heater heating zone, heating zone is formd an environment protected by N2, product is in this ring
Under border in heating process, the spacing between cutter on pallet makes nitrogen fully surround the cutter being heat-treated, and is prevented effectively from table
Face is oxidized.
The body of heater of cooling zone is made up of double-skin duct, and cooling zone is constituted by cooling water circulation in the middle of double-skin duct, cooling
The temperature of cooling water in area is 15-20 degrees Celsius, the spacing that guipure delivery tray enters between the cutter on cooling zone, pallet
Beneficial to making cutter radiate, the tool temperature that cooling zone is exported is set to be less than 60-80 degrees Celsius.
The annealing device of the present invention, including frame 22, body of heater 26, ammonia tank 18, ammonia dore furnace 14, the and of cooling tower 19
Circulating water pool 20, the two end axles of frame 22 are connected with roll shaft 23, and upper rack is fixed with body of heater 26, roll shaft 23 and is covered with guipure
27, guipure 27 passes through body of heater 26, and one of roll shaft 23 is driven by motor and then drives guipure 27 to move, it is characterised in that
26 points of body of heater is heating zone and cooling zone 25, and the first heating zone 9, the second heating zone 10, the 3rd heating zone 11 are divided into heating, plus
Some heating carbon-points 8 are plugged and connected with the wall of hot-zone, the guipure 27 for moving to heating zone side forms rest area 6, placed
Multiple pallets 3 are placed with area 6, the left and right sides of pallet 3 is integrally formed to be provided with backplate 4, and the upside of pallet 3 is integrally formed
Be provided between multiple teeth convex 2, two neighboring tooth convex 2 and constitute clip slot 1, clip slot 1 is used to be embedded in cutter（5）And then make adjacent
Two cutters（5）Between spacing be 2-5mm.Ammonia tank 18 is connected on ammonia dore furnace 14, pipeline by pipeline and is provided with
Safety valve 17 and pressure valve 16, the outer wrap of the flue 15 of ammonia dore furnace 14 have heating furnace silk 13, and heating furnace silk 13 is used for
Flue 15 is heated to the mixture of 800 degrees Celsius and then the mixture for making ammonia be decomposed into nitrogen and hydrogen, nitrogen and hydrogen
It is filled into by gas inlet pipe 12 in the first heating zone 9 of body of heater 26 and then air is discharged into whole heating zone, hydrogen reducing
Air in the heating zone of body of heater 26, makes heating zone form an environment protected by nitrogen, and product is heated in such circumstances
During, the spacing between cutter on pallet 3 makes nitrogen fully surround the cutter being heat-treated, and is prevented effectively from surface by oxygen
Change.The cooling zone 25 of body of heater 26 is double-decker, and the interior circulation of cooling zone 25 has cooling water, and circulating water pool 20 will be cold by water pump 21
But water is pumped into cooling zone 25, cooling tower 19, circulating water pool 20, water pump 21 and cooling zone 25 constitute cooling water circulation passageway and then
The water temperature for ensureing the cooling water in cooling zone 25 is 15-20 degrees Celsius, and guipure 25 drives the pallet for being loaded with cutter by heating zone
And cooling zone, the spacing between cutter on pallet is beneficial to make cutter radiate, and the temperature of the cutter behind cooling zone is less than 60-
80 degrees Celsius, Heating Zone Temperature is respectively：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd heating zone 1070
DEG C, run duration of the pallet in whole heating zone is 20 minutes.The metallographic microscope of cutter after the present apparatus is heat-treated shows
It is shown as：Martensite and a small amount of disperse point-like carbide.（Apparatus and method of the present invention effectively increases the corrosion resistant of 2CR13 materials
Cutter after corrosion energy, common heat treatment is shown as martensite+granule carbonide under metallographic microscope）.Cooling circulating water water
Consumption about 3m3/h.
Comparative experiments:
The company that applicant is held（Qingdao Kai Mei Household Appliances Limiteds）In the method by the present invention on the 28th of August in 2016
The table knife being heat-treated with device, with conventional method（Table knife heap forces together the heat treatment of progress）The table knife being heat-treated, send
Metallographic Analysis is done by inspection Qingdao Fil detection Science and Technology Ltd., and sample number into spectrum FAIRML16080020, method of testing is GB/T
13298-2015, test specimens are as shown in figure 5, Fig. 5 carries out the ratio of Metallographic Analysis after being heat-treated for the present invention with prior art
The relatively test specimens of experiment（1# is sample of the present invention, and 2# is prior art sample）.
Sample pretreating：
Step 1. takes cross section sample at handle of a knife
Step 2. is cleaned, polished, polishing, corrosion sample
The micro- sem observation of step 3.
Corrosion reagent：The Fecl3+Hcl aqueous solution.
Test result
To sum up, advantages of the present invention is that method is simple, and easy to use, spacing is with profit between can effectively keeping each western-style food cutter
Thermal effectiveness is improved in 2CR13 materials, and appliance arrangement is simple in construction, beneficial to a wide range of popularization and application, is specially：1st, originally
Invention carries tool blank by pallet, moreover, the spacing between tool blank quickly can be adjusted to 2-5mm,
The effect that this spacing is produced is huge, is both surrounded entirely by nitrogen beneficial to making cutter when being filled with nitrogen, it is to avoid in heating process
Oxidation, moreover, in cooling procedure, being capable of fast cooling, raising production efficiency, rate of reducing the number of rejects and seconds.2nd, the Jin Xiangfa of cutter is made
The metallographic microscope of cutter of the changing after the present apparatus is heat-treated is shown as：Martensite and a small amount of disperse point-like carbide.
（It is aobvious in metallographic that apparatus and method of the present invention effectively increases the cutter after the decay resistance of 2CR13 materials, common heat treatment
Martensite+granule carbonide is shown as under micro mirror）.3rd, percent defective reduces 25% or so.
Claims (10)
1. a kind of western-style food tool heat treatment method of 2CR13 materials, it is characterised in that comprise the following steps：
The pre-preparation that A, tool blank are put
B, the rest area for being put into guipure
C, into heating zone, and be filled with nitrogen
D, cooled into cooling zone
Cutter sorting after E, heat treatment, the pallet vacated proceeds step A operation.
2. the western-style food tool heat treatment method of 2CR13 materials according to claim 1, it is characterised in that step A is specially：
Workman's hand grabs a cutter and is put into empty pallet, several times of flat wiping back and forth on the cutter of pallet with palm, and cutter is pressed from both sides by press-in in turn
Groove, makes to form two to five millimeters of spacing between two neighboring cutter, completes the loading cutter work of a pallet；And continue successively
The next pallet of progress the operation of loading cutter.
3. the western-style food tool heat treatment method of 2CR13 materials according to claim 1, it is characterised in that step B by it is multiple
Load the pallet of cutter, put the rest area of guipure, guipure brings pallet into body of heater, sequentially pass through the heating zone of body of heater and cold
But area, the speed of service of guipure is：Heating zone length/20 minute=guipure translational speed.
4. the western-style food tool heat treatment method of 2CR13 materials according to claim 1, it is characterised in that
Step C is that the first heating zone is preheated, the second heating zone, the heat preservation zone that the 3rd heating zone is heating process, temperature point
It is not：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd 1070 DEG C of heating zone, fortune of the pallet in whole heating zone
The dynamic time is 20 minutes.
5. the western-style food tool heat treatment method of 2CR13 materials according to claim 1, it is characterised in that
Ammonia is filled with ammonia dore furnace by ammonia tank, and ammonia dore furnace ammonia after 800 degree are heated resolves into hydrogen and nitrogen
Mixed gas, wherein 75%H2,25%N2, H2 and N2 enter by gas inlet pipe in the first heating zone of body of heater, H2 reduction
Air in body of heater heating zone, makes heating zone form environment protected by N2, product heating process in such circumstances
In, the spacing between cutter on pallet makes nitrogen fully surround the cutter being heat-treated, and is prevented effectively from surface and is oxidized.
6. the western-style food tool heat treatment method of 2CR13 materials according to claim 1, it is characterised in that
The body of heater of cooling zone is made up of double-skin duct, is constituted in the middle of double-skin duct by cooling water circulation in cooling zone, cooling zone
Cooling water temperature be 15-20 degrees Celsius, the spacing that guipure delivery tray enters between the cutter on cooling zone, pallet is beneficial to
Cutter is radiated, the tool temperature that cooling zone is exported is less than 60-80 degrees Celsius.
7. the heat treatment used in a kind of western-style food tool heat treatment method of the 2CR13 materials as described in any according to claim 1-6
Device, including frame（22）, body of heater（26）, ammonia tank（18）, ammonia dore furnace（14）, cooling tower（19）And circulating water pool
（20）, frame（22）Two end axles be connected with roll shaft（23）, frame（22）Top is fixed with body of heater（26）, roll shaft（It is covered with 23
Guipure（27）, guipure（27）Through body of heater（26）, one of roll shaft（23）It is driven by motor and then drives guipure（27）Fortune
It is dynamic, it is characterised in that body of heater（26）It is divided into heating zone and cooling zone（25）, heat and divide into the first heating zone（9）, second heating
Area（10）, the 3rd heating zone（11）, some heating carbon-points are plugged and connected with the wall of heating zone（8）, move to heating zone side
Guipure（27）Form rest area（6）, rest area（6）On be placed with multiple pallets（3）, pallet（3）The left and right sides one
What is be molded is provided with backplate（4）, pallet（3）Integrally formed to be provided with multiple teeth convex for upside（2）, two neighboring tooth is convex（2）
Between constitute clip slot（1）, clip slot（1）For being embedded in cutter（5）And then make two neighboring cutter（5）Between spacing be 2-
5mm。
8. annealing device according to claim 7, it is characterised in that ammonia tank（18）Ammonia point is connected to by pipeline
Solve stove（14）, safety valve is provided with pipeline（17）And pressure valve（16）, ammonia dore furnace（14）Flue（15）Outside bag
It is wrapped with heating furnace silk（13）, heating furnace silk（13）For by flue（15）It is heated to 800 degrees Celsius and then ammonia is decomposed into nitrogen
The mixture of the mixture of gas and hydrogen, nitrogen and hydrogen passes through gas inlet pipe（12）It is filled into body of heater（26）The first heating zone
（9）It is interior and then air is discharged into whole heating zone, hydrogen reducing body of heater（26）Heating zone in air, form heating zone
One environment for being protected by nitrogen, product is in such circumstances in heating process, pallet（3）On cutter（5）Between spacing
Nitrogen is fully surrounded the cutter being heat-treated, be prevented effectively from surface and be oxidized.
9. the annealing device according to claim 7 or 8, it is characterised in that body of heater（26）Cooling zone（25）For bilayer
Structure, cooling zone（25）Interior circulation has cooling water, circulating water pool（20）Pass through water pump（21）Cooling water is pumped into cooling zone（25）,
Cooling tower（19）, circulating water pool（20）, water pump（21）With cooling zone（25）Constitute cooling water circulation passageway and then ensure cooling
Area（25）The water temperature of interior cooling water is 15-20 degrees Celsius, guipure（25）Drive and be loaded with the pallet of cutter by heating zone and cold
But the spacing between cutter on area, pallet is beneficial to make cutter radiate, and the temperature of the cutter behind cooling zone is taken the photograph less than 60-80
Family name's degree, Heating Zone Temperature is respectively：First 1000 DEG C of heating zone, the second 1050 DEG C of heating zone, the 3rd 1070 DEG C of heating zone, support
Run duration of the disk in whole heating zone is 20 minutes.
10. annealing device according to claim 9, it is characterised in that the gold of the cutter after the present apparatus is heat-treated
Phase microscope is shown as：Martensite and a small amount of disperse point-like carbide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111360207A (en) * | 2020-03-30 | 2020-07-03 | 嘉兴民政石油机械附件厂 | Production process of ball valve for oil well pump |
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