CN108411183A - TM52 steel bonded carbide and preparation process applied to potassium steel Jaw plate - Google Patents
TM52 steel bonded carbide and preparation process applied to potassium steel Jaw plate Download PDFInfo
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- CN108411183A CN108411183A CN201810397609.5A CN201810397609A CN108411183A CN 108411183 A CN108411183 A CN 108411183A CN 201810397609 A CN201810397609 A CN 201810397609A CN 108411183 A CN108411183 A CN 108411183A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
- C22C1/0458—Alloys based on titanium, zirconium or hafnium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Abstract
The invention belongs to hard alloy fields, and in particular to a kind of TM52 steel bonded carbide and preparation process applied to potassium steel Jaw plate.TM52 steel bonded carbide hardness of the present invention can reach HRC60~62, although hardness is medium, impact flexibility improves obvious, (reaches 6.1J/cm the value that is hit is larger2) when, maximum hardness can reach HRC80~85, it is particularly suitable for the larger jaw crusher Jaw plate of intensity that is hit, and after TM52 steel bonded carbide to be applied to the position easy to wear of potassium steel Jaw plate parent, the wear-resisting property of Jaw plate can be made to significantly improve, the usually 2 times or more of diamondite, but cost is much lower compared with for diamondite；And TM52 steel bonded carbide has higher thermal stability, is firmly combined with potassium steel Jaw plate, is not easily to fall off.
Description
Technical field
Present invention relates particularly to a kind of TM52 steel bonded carbide and preparation process applied to potassium steel Jaw plate, belong to hard
Matter alloy field.
Background technology
Currently, jaw crusher used Jaw plate in application is potassium steel Jaw plate, due to the surface of potassium steel Jaw plate
Hardness is relatively low, and abrasive material short distance cutting output is larger, therefore Jaw plate abrasion is very fast.
Because TM52 steel bonded carbide hardness is relatively high (HRC62~64), my company proposes in potassium steel Jaw plate
The idea of TM52 steel bonded carbide or W-Co carbide hard metals is inlayed at position easy to wear, to overcome Jaw plate Fast Wearing
The problem of.When specific operation, before high manganese steel casting cast, hard alloy is placed in casting mold, then pour into molten steel, through cooling
After solidification, hard alloy is just closely embedded in poured into a mould high manganese steel casting --- i.e. in potassium steel Jaw plate.But tungsten-cobalt carbide
The density of hard alloy is usually 14.5g/cm3Control and prepare the market of the main raw material(s) WC of W-Co carbide hard metals
Higher price (about 180 yuan/kg), and the density of TM52 steel bonded carbide is relatively low, usually 6.1g/cm3It is prepared by left and right
The market price of the main raw material(s) TiC of TM52 steel bonded carbide is relatively low (about 70 yuan/kg), accordingly, it is considered to production
The various factors such as the practical application (after preponderance itself, energy consumption also higher relatively) of cost and potassium steel Jaw plate, finally recognize
It is more suitable for the application requirement of potassium steel Jaw plate for TM52 steel bonded carbide.
But in application process, (it is more than 6.0J/cm because impact strength suffered by jaw crusher Jaw plate is larger2), and it is existing
The impact flexibility of TM52 steel bonded carbide is relatively low (to be less than 5.5J/cm2), therefore TM52 steel bonded carbide is still easy
It deforms upon or is broken, be transferred in the abrasion of TM52 steel bonded carbide by the abrasion of potassium steel Jaw plate in form, but
Essential problem is again without solution.
Therefore, the high-performance TM52 steel knot hard of a kind of hardness disclosure satisfy that the requirement of potassium steel Jaw plate of research and development and toughness closes
Gold is very necessary.
Invention content
The technical problem to be solved by the present invention is to：Overcome deficiency in the prior art, a kind of impact flexibility is provided and is obviously carried
TM52 steel bonded carbide that is high and meeting potassium steel Jaw plate application requirement；The present invention also provides the TM52 steel bonded carbide
Preparation process.
TM52 steel bonded carbide of the present invention applied to potassium steel Jaw plate includes the chemistry of following mass percent
Ingredient：Carbon 0.5~0.7%, titanium 46~50%, molybdenum 0.7~0.9%, manganese 12~15%, nickel 1.8~2.0%, remaining for iron and
Inevitable impurity.
Compared with traditional TM52 steel bonded carbide, the TM52 steel bonded carbide in the present invention, carbon content decreases,
Manganese increases impact resistance, and nickel slows down oxidation reaction, so as to make TM52 steel bonded carbide reach following effect：Rockwell is hard
Degree can reach HRC80~85；Hardness is minimum after formula is adjusted can reach HRC60~62.Therefore, it is applied to Jaw plate
Afterwards, the toughness at the position that is hit of Jaw plate can be made to significantly improve, to significantly improve the wear-resisting property of Jaw plate and make
Use the service life.
The technique of the present invention for preparing above-mentioned TM52 steel bonded carbide, includes the following steps：
(1) raw material are matched；
(2) it grinds：
The raw material are mixed and are added in ball mill, with 1kg raw material correspond to addition 400ml~450ml purity >=
The ratio of 95% absolute ethyl alcohol mixes, and grinds 24~30 hours in the ball mill, obtains mixture；
(3) absolute ethyl alcohol in mixture is recycled, obtains the mixture that absolute ethyl alcohol content is 3%~5%；
(4) adhesive is added into mixture obtained by step (3), is corresponded to 1kg mixtures and 500ml~550ml institutes is added
It is dry in closed pure environment after the ratio uniform stirring for stating adhesive, by the mixture granulation after drying；
(5) particle obtained is placed in diel, is carried out under 20~23 DEG C of temperature, the pressure of 4.5~5MPa
Compacting, obtains molded blank；
(6) the magnesia layer that 3~5mm thickness is placed in graphite plate, molded blank is placed on graphite plate, adjacent molded blank
Between there are gaps, the graphite plate for being placed with molded blank is put into sintering furnace later, be heated to 1420~1500 DEG C progress
Sintering, obtains TM52 steel bonded carbide.
Preferably, the ball mill of step (2) uses 42CrMo alloy steel balls as abrasive media, wherein 42CrMo alloys
It is HR48~52 that steel ball, which uses modifier treatment, hardness,.It is further preferred that a diameter of the 16 of 42CrMo alloy steel balls~
20mm.After the 42CrMo alloy steel balls ball milling, mixed starting material particle size can make finally obtained carefully to 400 mesh
TM52 steel-bonded carbide products consistency improves.
Preferably, the ethyl alcohol in step (3) is recycled using high-temperature vapor by ethanol recovery device, the second after recycling
Alcohol is newly stored into after electronic scale metering allotment in holding vessel, to utilize again.
Preferably, the adhesive in step (4) is the adhesive using buna as base-material.
Preferably, it is pelletized with vibration granulator in step (4), and uniformly screening is sieved with 80 mesh stainless steels.
Preferably, in step (5), two-way pressing process, the molded blank being pressed into is used to be not likely to produce gas in compacting
The defects of hole, sand holes, density evenly, regular geometry, flawless, no layering.
Preferably, it being sintered using vacuum high-temperature sintering stove in step (6), control vacuum degree is -0.96~-1MPa,
Sintering process is as follows：Temperature rises to 300 DEG C from 0 DEG C, and heating rate is 5~6 DEG C/min, and 5~10min is kept the temperature at 300 DEG C, is made
Adhesive removes；After heat preservation, temperature rises to 500 DEG C by 300 DEG C, and heating rate is 10~11 DEG C/min, is protected at 500 DEG C
5~10min of temperature, is de-gassed reaction at this stage, by blank because caused by adhesive, carbon, impurity and oxide etc.
Gas removal；After heat preservation, temperature rises to 800 DEG C by 500 DEG C, and heating rate is 7~8 DEG C/min, and 10 are kept the temperature at 800 DEG C
~15min makes solid-phase sintering, blank hardening；After heat preservation, temperature rises to 960 DEG C by 800 DEG C, and heating rate is 6~7 DEG C/
Min keeps the temperature 30~35min at 960 DEG C, and iron, manganese, nickel are in a liquid state at this time, and gap will be formed by after degassing and is filled, is made
Compactness increases；After heat preservation, temperature rises to 1460 DEG C by 960 DEG C, and heating rate is 2.5~3 DEG C/min, at 1460 DEG C
360~400min is kept the temperature, realizes that liquid-phase sintering, iron become thick from powdered, carries out natural cooling later (in concrete application
When, can be cooled down with inflated with nitrogen, on the one hand, improve cooling rate, on the other hand play the protective effect of inert gas).
Possessed advantageous effect is the present invention compared with prior art：
1, TM52 steel bonded carbide hardness of the present invention can reach HRC60~62, although hardness is medium, impact is tough
Property improves obvious, (reaches 6.1J/cm the value that is hit is larger2) when, maximum hardness can reach HRC80~85, especially
The jaw crusher Jaw plate larger suitable for the intensity that is hit, and TM52 steel bonded carbide is applied to potassium steel Jaw plate mother
Behind the position easy to wear of body, the wear-resisting property of Jaw plate can be made to significantly improve, usually the 2 times or more of diamondite, but at
This is but much lower compared with for diamondite；
2, TM52 steel bonded carbide of the present invention has higher thermal stability, in casting potassium steel Jaw plate process
In, when being raised to burning 1500 DEG C~1520 DEG C of the temperature of casting of high manganese steel casting by room temperature moment, the TM52 steel knots that are placed in casting mold
Hard alloy will not occur to be broken or deform, and after the completion of casting, is firmly combined with potassium steel Jaw plate, is not easily to fall off.
3, the TM52 steel bonded carbide in the present invention has good weldability, compares other powdered metallurgical materials, energy
It is enough more easily to be combined with other metal products.
Description of the drawings
Fig. 1 is the sintering curre of TM52 steel bonded carbide in embodiment 1；
Fig. 2 is the mean grain size metallograph of TM52 steel bonded carbide in embodiment 1；
Fig. 3 is the mean grain size metallograph of TM52 steel bonded carbide in embodiment 2；
Fig. 4 is the mean grain size metallograph of TM52 steel bonded carbide in embodiment 3.
Specific implementation mode
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1：
The TM52 steel bonded carbide of the present embodiment is made of the chemical composition of following mass percent：Carbon 0.6%, titanium
49%, molybdenum 0.7%, manganese 13%, nickel 1.9%, remaining is iron and inevitable impurity.
Preparation method is as follows：
(1) raw material are matched：Raw material use titanium carbide, molybdenum powder, ferromanganese powder, nickel powder and reduced iron powder, total amount 200kg；
(2) it grinds：
The raw material are mixed and are added in ball mill, conditioned processing, hardness HR50, diameter are used in ball mill
For 18mm and any surface finish, zero defect, the 42CrMo alloy steel balls without any other impurity are as abrasive media, wherein
42CrMo alloy steel balls are ground 36 hours in the ball mill using the ratio mixing of the absolute ethyl alcohol of addition 80L purity >=95%,
It obtains mixture, in mechanical milling process, sprinkles water and cool down in grinder appearance, make ball mill surface temperature between 20 DEG C~25 DEG C；
(3) absolute ethyl alcohol in mixture is recycled by ethanol recovery device using high-temperature vapor, obtains ethyl alcohol
The mixture that content is 3%；
(4) it is added into mixture obtained by step (3) and (is used certainly in the present embodiment using the adhesive that buna is base-material
Adhesive processed --- be made with No. 120 gasoline 200kg stirrings by 3kg buna), it is corresponded to and is added with 1kg mixtures with kneader
Enter 500ml described adhesives ratio uniform be stirred after, be put into drying box, dry 72 hours at a temperature of 50 DEG C,
By the mixture after drying by vibrating granulator granulation, uniformly screening is sieved with 80 mesh stainless steels；
(5) particle obtained is placed in diel, using 100T hydraulic presses, using 4.5MPa pressure, 20~25
Two-way compacting in DEG C environment, obtains molded blank, the molded blank even density, regular geometry, flawless, no layering；
(6) in graphite plate place 3mm thickness magnesia layer, molded blank is placed on graphite plate, adjacent molded blank it
Between there are gaps, the graphite plate for being placed with molded blank is put into vacuum high-temperature sintering stove later, is heated to 1420~1500
It DEG C is sintered, control vacuum degree is -0.96~-1MPa, obtains TM52 steel bonded carbide.Specific sintering process is as follows：
First stage --- removing binder：Temperature rises to 300 DEG C from 0 DEG C, and heating rate is 5 DEG C/min, at 300 DEG C
Keep the temperature 10min；
Second stage --- degassing reaction (by blank because of gas caused by adhesive, carbon, impurity and oxide etc.
Removing)：Temperature rises to 500 DEG C by 300 DEG C, and heating rate is 10 DEG C/min, and 10min is kept the temperature at 500 DEG C；
Phase III --- solid-phase sintering blank hardens：Temperature rises to 800 DEG C by 500 DEG C, and heating rate is 7 DEG C/min,
15min is kept the temperature at 800 DEG C；
Fourth stage --- iron, manganese, nickel are in a liquid state, and gap will be formed by after degassing and is filled, compactness is made to increase：
Temperature rises to 960 DEG C by 800 DEG C, and heating rate is 6 DEG C/min, and 30min is kept the temperature at 960 DEG C；
5th stage --- liquid-phase sintering (dissolved ferric iron is thick by powdered variation)：Temperature rises to 1460 by 960 DEG C
DEG C, heating rate is 3 DEG C/min, and 360min is kept the temperature at 1460 DEG C；
Final stage --- natural cooling.
Specific sintering curre is as shown in Figure 1.
The mean grain size metallograph of TM52 steel bonded carbide in the present embodiment is as shown in Fig. 2, can according to metallograph
Analysis show that metal grain mean intercept is 4.7001 μm, and 12.2 grades of average level, crystal grain is thinner, can effectively improve TM52 steel
The plasticity and toughness of bond hard alloy.
The hardness of TM52 steel bonded carbide obtained is HRC64~65, impact flexibility 6.1J/cm in the present embodiment2
After TM52 steel bonded carbide to be increased to the position easy to wear of potassium steel Jaw plate parent, change parent cooling condition, refinement is brilliant
Granularity, improve grain size number makes the wear-resisting property of Jaw plate to improve the mechanical performances such as its tensile strength, toughness and plasticity
Significantly carry；TM52 steel bonded carbide in the present embodiment has higher thermal stability, during casting potassium steel Jaw plate,
It will not occur to be broken or deform, and after the completion of casting, be firmly combined with potassium steel Jaw plate, is not easily to fall off.
Embodiment 2：
The TM52 steel bonded carbide of the present embodiment is made of the chemical composition of following mass percent：Carbon 0.7%, titanium
47%, molybdenum 0.9%, manganese 14%, nickel 1.8%, remaining is iron and inevitable impurity.
Preparation method is as follows：
(1) raw material are matched：Raw material use titanium carbide, molybdenum powder, ferromanganese powder, nickel powder and reduced iron powder, total amount 200kg；
(2) it grinds, specific steps are the same as embodiment 1；
(3) absolute ethyl alcohol in mixture is recycled by ethanol recovery device using high-temperature vapor, obtains ethyl alcohol
The mixture that content is 5%；
(4) adhesive is added into mixture obtained by step (3), and (adhesive in the present embodiment is using the just green chemical industry in Chengdu
Co., Ltd production using buna as the adhesive of base-material), with kneader with 1kg mixtures correspond to be added 550ml described in
It is 74 hours dry at a temperature of 45 DEG C after the ratio uniform of adhesive is stirred, the mixture after drying is passed through into vibration
Granulator is pelletized, and uniformly screening is sieved with 80 mesh stainless steels；
(5) particle obtained is placed in diel, using 100T hydraulic presses, using 4.6MPa pressure, in 23 DEG C of rings
Two-way compacting, obtains molded blank in border, the molded blank even density, regular geometry, flawless, no layering；
(6) in graphite plate place 3mm thickness magnesia layer, molded blank is placed on graphite plate, adjacent molded blank it
Between there are gaps, the graphite plate for being placed with molded blank is put into vacuum high-temperature sintering stove later, is heated to 1420~1500
It DEG C is sintered, control vacuum degree is -0.96~-1MPa, obtains TM52 steel bonded carbide.Specific sintering process is as follows：Temperature
Degree rises to 300 DEG C from 0 DEG C, and heating rate is 6 DEG C/min, and 10min is kept the temperature at 300 DEG C；Temperature rises to 500 DEG C by 300 DEG C, rises
Warm rate is 5 DEG C/min, and 8min is kept the temperature at 500 DEG C；Temperature rises to 800 DEG C by 500 DEG C, and heating rate is 7 DEG C/min,
12min is kept the temperature at 800 DEG C；Temperature rises to 960 DEG C by 800 DEG C, and heating rate is 6 DEG C/min, and 35min is kept the temperature at 960 DEG C；Temperature
Degree rises to 1460 DEG C by 960 DEG C, and heating rate is 2.5 DEG C/min, and 380min is kept the temperature at 1460 DEG C；It is filled in sintering furnace later
Nitrogen cools down.
The mean grain size metallograph of TM52 steel bonded carbide in the present embodiment is as shown in figure 3, can according to metallograph
Analysis show that metal grain mean intercept is 4.0546 μm, and 12.6 grades of average level, crystal grain carefully significantly improves its plasticity and tough very much
Property.
TM52 steel bonded carbide obtained has higher thermal stability in the present embodiment, in casting potassium steel Jaw plate mistake
Cheng Zhong, when being raised to burning 1500 DEG C~1520 DEG C of the temperature of casting of high manganese steel casting by room temperature moment, itself will not occur fracture or
Deformation, and after the completion of casting, be firmly combined with potassium steel Jaw plate, be not easily to fall off；The hardness of the TM52 steel bonded carbide simultaneously
For HRC62-63, impact flexibility 6.5J/cm2, after being increased to potassium steel Jaw plate, change parent cooling condition, refinement is brilliant
Granularity improves grain size number, to improve the mechanical performances such as its tensile strength, toughness and plasticity, while potassium steel Jaw plate
Wear-resisting property significantly improves.
Embodiment 3：
The TM52 steel bonded carbide of the present embodiment is made of the chemical composition of following mass percent：Carbon 0.5%, titanium
46%, molybdenum 0.8%, manganese 12%, nickel 1.8%, remaining is iron and inevitable impurity.
Preparation method is as follows：
(1) raw material use titanium carbide, molybdenum powder, ferromanganese powder, nickel powder and reduced iron powder, total amount 200kg；
(2) it grinds, specific steps are the same as embodiment 1；
(3) absolute ethyl alcohol in mixture is recycled by ethanol recovery device using high-temperature vapor, obtains ethyl alcohol
The mixture that content is 4%；
(4) into mixture obtained by step (3), using buna as the adhesive of base-material, (adhesive is by 3kg fourths for addition
Sodium rubber is stirred with No. 120 gasoline 200kg), it is corresponded to 1kg mixtures with kneader and is bonded described in 450~500ml of addition
It is 72~73 hours dry at a temperature of 48 DEG C after the ratio uniform of agent is stirred, the mixture after drying is passed through into vibration
Granulator is pelletized, and uniformly screening is sieved with 80 mesh stainless steels；
(5) particle obtained is placed in diel, two-way compacting is carried out using 100T hydraulic presses, obtain molding hair
Base, the molded blank even density, regular geometry, flawless, no layering；
(6) in graphite plate place 3mm thickness magnesia layer, molded blank is placed on graphite plate, adjacent molded blank it
Between there are gaps, the graphite plate for being placed with molded blank is put into vacuum high-temperature sintering stove later, is heated to 1420~1500
It DEG C is sintered, control vacuum degree is -0.96~-1MPa, obtains TM52 steel bonded carbide.Specific sintering process is as follows：Temperature
Degree rises to 300 DEG C from 0 DEG C, and heating rate is 6 DEG C/min, and 8min is kept the temperature at 300 DEG C；Temperature rises to 500 DEG C by 300 DEG C, rises
Warm rate is 11 DEG C/min, and 6min is kept the temperature at 500 DEG C；Temperature rises to 800 DEG C by 500 DEG C, and heating rate is 8 DEG C/min,
15min is kept the temperature at 800 DEG C；Temperature rises to 960 DEG C by 800 DEG C, and heating rate is 7 DEG C/min, and 30min is kept the temperature at 960 DEG C；Temperature
Degree rises to 1460 DEG C by 960 DEG C, and heating rate is 3 DEG C/min, and 400min is kept the temperature at 1460 DEG C；Natural cooling later.
The mean grain size metallograph of TM52 steel bonded carbide in the present embodiment is as shown in figure 4, can according to metallograph
Analysis show that metal grain mean intercept is 4.8491 μm, and 12.1 grades of average level, crystal grain more carefully effectively improves its plasticity and tough
Property.
TM52 steel bonded carbide obtained has higher thermal stability in the present embodiment, in casting potassium steel Jaw plate mistake
Cheng Zhong, when being raised to burning 1500 DEG C~1520 DEG C of the temperature of casting of high manganese steel casting by room temperature moment, itself will not occur fracture or
Deformation, and after the completion of casting, be firmly combined with potassium steel Jaw plate, be not easily to fall off；The hardness of the TM52 steel bonded carbide simultaneously
For HRC60-62, impact flexibility 6.6J/cm2, after being applied to potassium steel Jaw plate parent, parent cooling item can be changed
Part, crystal grain thinning degree improve grain size number, and the mechanical performances such as tensile strength, toughness and plasticity to improve Jaw plate make Hubei Province
The wear-resisting property and service life of plate significantly improve.
Claims (10)
1. a kind of TM52 steel bonded carbide applied to potassium steel Jaw plate, it is characterised in that：Including following mass percent
Chemical composition：
Carbon 0.5~0.7%, titanium 46~50%, molybdenum 0.7~0.9%, manganese 12~15%, nickel 1.8~2.0%, remaining is for iron and not
Evitable impurity.
2. a kind of technique preparing TM52 steel bonded carbide described in claim 1, it is characterised in that：Include the following steps：
(1) raw material are matched；
(2) it grinds：
The raw material are mixed and are added in ball mill, addition 400ml~450ml purity >=95% is corresponded to 1kg raw material
The ratio of absolute ethyl alcohol mixes, and grinds 24~30 hours in the ball mill, obtains mixture；
(3) absolute ethyl alcohol in mixture is recycled, obtains the mixture that absolute ethyl alcohol content is 3%~5%；
(4) adhesive is added into mixture obtained by step (3), corresponds to be added described in 500ml~550ml with 1kg mixtures and glues
It is dry in closed pure environment after the ratio uniform stirring of mixture, by the mixture granulation after drying；
(5) particle obtained is placed in diel, is suppressed under 20~23 DEG C of temperature, the pressure of 4.5~5MPa,
Obtain molded blank；
(6) the magnesia layer that 3~5mm thickness is placed in graphite plate, molded blank is placed on graphite plate, between adjacent molded blank
There are gaps, and the graphite plate for being placed with molded blank is put into sintering furnace later, are heated to 1420~1500 DEG C and are sintered,
Obtain TM52 steel bonded carbide.
3. technique according to claim 2, it is characterised in that：The ball mill of step (2) is made using 42CrMo alloy steel balls
For abrasive media, wherein it is HR48~52 that 42CrMo alloy steel balls, which use modifier treatment, hardness,.
4. technique according to claim 3, it is characterised in that：A diameter of 16~20mm of 42CrMo alloy steel balls.
5. technique according to claim 2, it is characterised in that：Ethyl alcohol in step (3) passes through second using high-temperature vapor
Alcohol recover is recycled.
6. technique according to claim 2, it is characterised in that：Adhesive in step (4) is using buna as base-material
Adhesive.
7. technique according to claim 2, it is characterised in that：It is pelletized with vibration granulator in step (4), and not with 80 mesh
The steel sieve that becomes rusty uniformly screens.
8. technique according to claim 2, it is characterised in that：Drying in step (4) carries out in drying box,
It is 72~73 hours dry at a temperature of 50 DEG C~55 DEG C.
9. technique according to claim 2, it is characterised in that：In step (5), two-way pressing process is used in compacting.
10. technique according to claim 2, it is characterised in that：It is burnt using vacuum high-temperature sintering stove in step (6)
Knot, control vacuum degree are -0.96~-1MPa, and sintering process is as follows：Temperature rises to 300 DEG C from 0 DEG C, and heating rate is 5~6 DEG C/
Min keeps the temperature 5~10min at 300 DEG C；After heat preservation, temperature rises to 500 DEG C by 300 DEG C, and heating rate is 10~11 DEG C/
Min keeps the temperature 5~10min at 500 DEG C；After heat preservation, temperature rises to 800 DEG C by 500 DEG C, and heating rate is 7~8 DEG C/
Min keeps the temperature 10~15min at 800 DEG C；After heat preservation, temperature rises to 960 DEG C by 800 DEG C, and heating rate is 6~7 DEG C/
Min keeps the temperature 30~35min at 960 DEG C；After heat preservation, temperature rises to 1460 DEG C by 960 DEG C, and heating rate is 2.5~3
DEG C/min, and after keeping the temperature 360~400min at 1460 DEG C, natural cooling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115821096A (en) * | 2022-11-30 | 2023-03-21 | 山东硕源工业机械设备有限公司 | Preparation method of ceramic high-chromium alloy-based wear-resistant composite material |
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| CN105234416A (en) * | 2015-11-02 | 2016-01-13 | 长兴军毅机械有限公司 | Manufacturing method of hammer of crusher and hammer |
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| CN1548568A (en) * | 2003-05-09 | 2004-11-24 | 湖南省冶金材料研究所 | Non-magnetic TiC hard alloy steel material |
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| CN104561724A (en) * | 2014-03-26 | 2015-04-29 | 张震宇 | Steel bonded hard alloy with high hardness and high wear resistance |
| CN105234416A (en) * | 2015-11-02 | 2016-01-13 | 长兴军毅机械有限公司 | Manufacturing method of hammer of crusher and hammer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115821096A (en) * | 2022-11-30 | 2023-03-21 | 山东硕源工业机械设备有限公司 | Preparation method of ceramic high-chromium alloy-based wear-resistant composite material |
| CN115821096B (en) * | 2022-11-30 | 2023-08-18 | 山东硕源工业机械设备有限公司 | Preparation method of ceramic high-chromium alloy-based wear-resistant composite material |
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