CN108165864A - A kind of mining hydraulic cylinder block and its manufacturing method - Google Patents
A kind of mining hydraulic cylinder block and its manufacturing method Download PDFInfo
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- CN108165864A CN108165864A CN201711320983.7A CN201711320983A CN108165864A CN 108165864 A CN108165864 A CN 108165864A CN 201711320983 A CN201711320983 A CN 201711320983A CN 108165864 A CN108165864 A CN 108165864A
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- hydraulic cylinder
- cylinder block
- mining hydraulic
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- carbide alloy
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- 238000005065 mining Methods 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 78
- 239000002184 metal Substances 0.000 claims abstract description 78
- 239000000758 substrate Substances 0.000 claims abstract description 77
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 76
- 239000000956 alloy Substances 0.000 claims abstract description 76
- 238000005245 sintering Methods 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 229910052804 chromium Inorganic materials 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- 229910001339 C alloy Inorganic materials 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000001513 hot isostatic pressing Methods 0.000 claims 3
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 239000011651 chromium Substances 0.000 description 12
- 238000010422 painting Methods 0.000 description 6
- 229910001562 pearlite Inorganic materials 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 235000019628 coolness Nutrition 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000952 Be alloy Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1053—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by induction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention provides a kind of mining hydraulic cylinder block and its manufacturing methods, the inner wall of the mining hydraulic cylinder block is evenly distributed with one layer of Metal Substrate carbide alloy coating, and inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding；The mining hydraulic cylinder block is steel.Metal Substrate carbide alloy by HIP sintering method or centrifugal rotation sintering method is evenly distributed on to the inner wall of mining hydraulic cylinder block blank, forms Metal Substrate carbide alloy coating.The HIP sintering or centrifugal rotation of the present invention is sintered mining cylinder body of hydraulic oil cylinder method of manufacturing technology, realize the design philosophy by two kinds of material manufactures, one machine components, base steel cylinder body of hydraulic oil cylinder has excellent comprehensive mechanical performance, Metal Substrate carbide skin has particularly excellent wear-resistant, corrosion resistance, this is the characteristic that any homogenous material can not be realized.
Description
Technical field
The invention belongs to high-performance base parts manufacturing technology and application fields, and in particular to a kind of coal mine hydraulic oil
Cylinder cylinder body and its manufacturing method are mainly used for support apparatus cylinder body of hydraulic oil cylinder manufacture of high wear resistance, highly corrosion resistant etc..
Background technology
Mining hydraulic cylinder block is the most critical component that mine individual hydraulic prop, comprehensive mining hydraulic bracket etc. match,
Traditional cylinder body of hydraulic oil cylinder manufacturing method has medium carbon alloy steel inner wall electrogalvanizing, electrodeposited chromium, iron plating at lower temperature or chemical nickel plating etc.
Method, technique environmental pollution are serious.Wall liner stainless steel inner lining in medium carbon steel, timely more resleeve manufacturing method, nothing after abrasion
Method solves crevice corrosion.A kind of highly corrosion resistant and anti abrasive cylinder body of hydraulic oil cylinder manufacturing method and technology, become coal mine to liquid
Press support apparatus high-performance key components and parts new demand.
Invention content
The object of the present invention is to provide a kind of coal mine cylinder body of hydraulic oil cylinder and its manufacturing method, to obtain a kind of high abrasion
The mining hydraulic cylinder block of damage, high-corrosion resistance.
To achieve the above object, the present invention uses following technical scheme：
A kind of mining hydraulic cylinder block, the inner wall of the mining hydraulic cylinder block are evenly distributed with one layer of Metal Substrate carbon
Compound alloy coat, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding；It is described mining
Cylinder body of hydraulic oil cylinder is steel.
The thickness of the Metal Substrate carbide alloy coating is 1~5mm.
The raw material of the Metal Substrate carbide alloy coating be Metal Substrate carbide alloy, form be alloy powder, institute
The mass percentage composition for stating Metal Substrate carbide alloy is：0.02~6.0% C, 0.1~20.0% Cr, 0.1~
15.5% Fe, 0.1~15.5% Mo, 0.1~22.0% Co, 0.01~4.5% Si, 0.01~4.5% B,
0.01~0.05% Al, 0.01~30.0% W, 0.0~0.1% V, 40.0~98.47% Ni.
The material of the mining hydraulic cylinder block is medium carbon alloy steel, such as 42CrMoA alloys or 27SiMn alloys.
A kind of preparation method of mining hydraulic cylinder block, it is characterised in that：Include the following steps：
It is first that medium carbon alloy steel is machined into mining hydraulic cylinder block blank；Then pass through HIP sintering
Metal Substrate carbide alloy is evenly distributed on the inner wall of mining hydraulic cylinder block blank by method or centrifugal rotation sintering method,
Metal Substrate carbide alloy coating is formed, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical junction
It closes.
The HIP sintering method is：
It is quiet that the mining hydraulic cylinder block blank progress overall thermal of Metal Substrate carbide alloy etc. is evenly distributed with to inner wall
Pressure sintering, HIP sintering technique are：Sintering temperature is 1050~1250 DEG C, and atmosphere pressures are 100~200Mpa, and atmosphere is
Argon gas.
The centrifugal rotation sintering method is：
The mining hydraulic cylinder block blank that inner wall is evenly distributed with to Metal Substrate carbide alloy is placed on induction heater
Or whole heating is carried out in constant temperature resistance furnace, heating temperature is 1050~1350 DEG C, centrifugal rotation speed for 800~3000 turns/
min。
The oil of the mining hydraulic with Metal Substrate carbide alloy coating being sintered by HIP sintering or centrifugal rotation
Cylinder cylinder body is directly heat-treated.
The heat treatment is that what is obtained after HIP sintering or centrifugal rotation sintering there is Metal Substrate carbide to close
The mining hydraulic cylinder block of gold plating is carried out integral heating quenching or normalizing or is burnt using HIP sintering and centrifugal rotation
The waste heat of knot carries out integral quenching or normalized treatment, and carries out subsequent tempering heat treatment, the cylinder body steel body gold after heat treatment
Phase constitution adds ferrite for tempered sorbite or pearlite.
The beneficial effects of the invention are as follows：The mining hydraulic cylinder block of the present invention uses HIP sintering or centrifugal rotation
Sintering, which obtains internal layer, has the mining hydraulic cylinder block of Metal Substrate carbide coating, realizes by two kinds of material manufactures, one machine
The design philosophy of tool part, base steel cylinder body have excellent comprehensive mechanical performance, and Metal Substrate carbide internal layer has particularly excellent
Wear-resistant, corrosion resistance, this is the characteristic that any homogenous material can not be realized.
Description of the drawings
Fig. 1 is the structure diagram of the mining hydraulic cylinder block of the present invention.
In figure, 1- core bases, 2- end caps, 3- mining hydraulic cylinder block blanks, 4- Metal Substrate carbide alloys, 5- chassis.
Specific embodiment
Further explanation is done to the present invention below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of mining hydraulic cylinder block of the present invention, including a mining hydraulic cylinder block ontology,
The inner wall of mining hydraulic cylinder block ontology is evenly distributed with the Metal Substrate carbide alloy coating that a layer thickness is 1~5mm, ore deposit
It is metallurgical binding with the inner wall and Metal Substrate carbide alloy coating of cylinder body of hydraulic oil cylinder；The mining hydraulic cylinder block is steel
Matter.
The raw material of Metal Substrate carbide alloy coating be Metal Substrate carbide alloy, form be alloy powder, the gold
Belong to base carbide alloy mass percentage composition be：0.02~6.0% C, 0.1~20.0% Cr, 0.1~15.5%
Fe, 0.1~15.5% Mo, 0.1~22.0% Co, 0.01~4.5% Si, 0.01~4.5% B, 0.01~
0.05% Al, 0.01~30.0% W, 0.0~0.1% V, 40.0~98.47% Ni.
The material of mining hydraulic cylinder block is medium carbon alloy steel, such as 42CrMoA alloys or 27SiMn alloys.
Wherein, the mass percentage composition of 42CrMoA alloys is：0.37~0.44% C, 0.17~0.37% Si,
The Fe of 0.50~0.80% Mn, 0.80~1.10% Cr and surplus；
The mass percentage composition of 27SiMn alloys is：0.24~0.32% C, 1.10~1.40% Si, 1.10~
1.40% Mn ,≤0.30% Cu ,≤0.30% Cr ,≤0.30% Ni ,≤0.30% Mo and the Fe of surplus.
The preparation method of above-mentioned mining hydraulic cylinder block is：It is first that medium carbon alloy steel is machined into mining hydraulic
Cylinder block blank；Then it is by HIP sintering method or centrifugal rotation sintering method that Metal Substrate carbide alloy is uniform
The inner wall of mining hydraulic cylinder block blank is distributed in, forms Metal Substrate carbide alloy coating, mining hydraulic cylinder block
Inner wall is metallurgical binding with Metal Substrate carbide alloy coating.
HIP sintering method is：The mining hydraulic cylinder block of Metal Substrate carbide alloy is evenly distributed with to inner wall
Blank carries out whole HIP sintering, and HIP sintering technique is：Sintering temperature is 1050~1250 DEG C, and atmosphere pressures are
100~200Mpa, atmosphere are argon gas.
Centrifugal rotation sintering method is：Inner wall is evenly distributed with to the mining hydraulic cylinder block of Metal Substrate carbide alloy
Blank, which is placed in induction heater or constant temperature resistance furnace, carries out whole heating, and heating temperature is 1050~1350 DEG C, centrifugal rotation
Speed is 800~3000 turns/min.
The oil of the mining hydraulic with Metal Substrate carbide alloy coating being sintered by HIP sintering or centrifugal rotation
Cylinder cylinder body is directly heat-treated.Specially：There is Metal Substrate carbon to what is obtained after HIP sintering or centrifugal rotation sintering
The mining hydraulic cylinder block of compound alloy coat carries out integral heating quenching or normalizing or utilizes HIP sintering and centrifugation
The waste heat of whirl-sintering carries out integral quenching or normalized treatment, and carries out subsequent tempering heat treatment, the cylinder body steel after heat treatment
Ontology metallographic structure adds ferrite for tempered sorbite or pearlite.
Further explanation is done to the present invention with reference to example.
Embodiment 1
It is as shown in Figure 1, first that medium carbon alloy steel is machined into a hollow mining hydraulic cylinder block blank
3；End cap 2 is set in one end of mining hydraulic cylinder block blank 3, and end cap 2 is centrally disposed with mining hydraulic cylinder block blank 3
The corresponding hole of hollow space, the other end of mining hydraulic cylinder block blank 3 closed by chassis 5, mining hydraulic oil cylinder
The hollow space filled core base 1 of chaeta base 3, and core base 1 is extended out by the hole at 2 middle part of end cap；In core base 1 and mining hydraulic oil
Metal Substrate carbide alloy 4 is uniformly distributed between 3 inner wall of cylinder cylinder blank, component shown in FIG. 1 is formed, then to shown in Fig. 1
Component use HIP sintering method that 3 inner wall of mining hydraulic cylinder block blank is made to form a layer thickness as 1~5mm metals
Base carbide alloy coating, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.65% C, 13.5%
Cr, 15.4% Fe, 1.5% Mo, 2.0% Co, 3.5% Si, 3.5% B, 0.01% Al, 1.0% W,
0.1% V, 58.84% Ni.
The material of mining hydraulic cylinder block blank 3 is 42CrMoA.
HIP sintering method is that whole HIP sintering, HIP sintering work are carried out to component shown in FIG. 1
Skill is：Sintering temperature is 1150 DEG C, and atmosphere pressures 170Mpa, atmosphere is argon gas.
The molding Metal Substrate carbide mining hydraulic cylinder block of HIP sintering directly cools down in air, obtains just
Fire tissue adds a small amount of ferritic structure for pearlite.
Finally, it goes to decore base 1, end cap 2 and chassis 5, is refined to the Metal Substrate carbide being about sized as the present invention
Mining hydraulic cylinder block.
Embodiment 2
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using heat etc.
Static pressure sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：1.47% C,
11.47% Cr, 13.09% Fe, 1.27% Mo, 1.7% Co, 2.98% Si, 2.97% B, 0.01% Al,
14.93% W, 0.1% V, 50.01% Ni.
The material of mining hydraulic cylinder block blank 3 is 42CrMoA.
HIP sintering method is that whole HIP sintering, HIP sintering work are carried out to component shown in FIG. 1
Skill is：Sintering temperature is 1250 DEG C, and atmosphere pressures 100Mpa, atmosphere is argon gas.
The molding Metal Substrate carbide mining hydraulic cylinder block of HIP sintering directly cools down in air, obtains just
Fire tissue adds a small amount of ferritic structure for pearlite.
Finally, it goes to decore base 1, end cap 2 and chassis 5, is refined to the Metal Substrate carbide being about sized as the present invention
Mining hydraulic cylinder block.
Embodiment 3
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using heat etc.
Static pressure sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.3% C, 7.5%
Cr, 2.5% Fe, 0.1% Mo, 0.1% Co, 3.5% Si, 1.6% B, 0.01% Al, 0.01% W,
0.01% V, 84.37% Ni.
The material of mining hydraulic cylinder block blank 3 is 42CrMoA.
HIP sintering method is that whole HIP sintering, HIP sintering work are carried out to component shown in FIG. 1
Skill is：Sintering temperature is 1050 DEG C, and atmosphere pressures 200Mpa, atmosphere is argon gas.
The molding Metal Substrate carbide mining hydraulic cylinder block of HIP sintering directly cools down in air, obtains just
Fire tissue adds a small amount of ferritic structure for pearlite.
Finally, it goes to decore base 1, end cap 2 and chassis 5, is refined to the Metal Substrate carbide being about sized as the present invention
Mining hydraulic cylinder block.
Embodiment 4
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using heat etc.
Static pressure sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.02% C, 15.1%
Cr, 0.15% Fe, 15.5% Mo, 2.6% Co, 0.04% Si, 0.01% B, 0.01% Al, 4.5%
W, 62.07% Ni.
The material of mining hydraulic cylinder block blank 3 is 42CrMoA.
HIP sintering method is that whole HIP sintering, HIP sintering work are carried out to component shown in FIG. 1
Skill is：Sintering temperature is 1100 DEG C, and atmosphere pressures 150Mpa, atmosphere is argon gas.
The molding Metal Substrate carbide mining hydraulic cylinder block of HIP sintering directly cools down in air, obtains just
Fire tissue adds a small amount of ferritic structure for pearlite.
Finally, it goes to decore base 1, end cap 2 and chassis 5, is refined to the Metal Substrate carbide being about sized as the present invention
Mining hydraulic cylinder block.
Embodiment 5
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using centrifugation
Whirl-sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The material of mining hydraulic cylinder block blank 3 is 27SiMn.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.45% C, 12.5%
Cr, 10.5% Fe, 0.1% Mo, 0.1% Co, 4.5% Si, 2.5% B, 0.01% Al, 0.01% W,
0.03% V, 69.3% Ni.
Centrifugal rotation sintering method is that component shown in FIG. 1 is integrally put into sensing heating stove heat, and heating temperature is
1200 DEG C, centrifugal rotation speed is 2500 turns/min.
Centrifugal rotation sintering the internal layer of carbide alloy containing Metal Substrate mining hydraulic cylinder block directly soak quenching and
450 DEG C of tempering water coolings, the metallographic structure of cylinder body base material are tempered sorbite.
Embodiment 6
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using centrifugation
Whirl-sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The material of mining hydraulic cylinder block blank 3 is 27SiMn.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.47% C, 10.8%
Cr, 9.0% Fe, 0.1% Mo, 0.1% Co, 3.6% Si, 2.1% B, 0.01% Al, 9.4% W,
0.05% V, 64.37% Ni.
Centrifugal rotation sintering method is that component shown in FIG. 1 is integrally put into constant temperature resistance furnace to heat, and heating temperature is
1250 DEG C, centrifugal rotation speed is 800 turns/min.
Centrifugal rotation sintering the internal layer of carbide alloy containing Metal Substrate mining hydraulic cylinder block directly soak quenching and
450 DEG C of tempering water coolings, the metallographic structure of cylinder body base material are tempered sorbite.
Embodiment 7
In the same manner as shown in Example 1, component shown in FIG. 1 is formed, then to component shown in FIG. 1 using centrifugation
Whirl-sintering method makes 3 inner wall of mining hydraulic cylinder block blank form a layer thickness as the painting of 1~5mm Metal Substrates carbide alloy
Layer, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
The material of mining hydraulic cylinder block blank 3 is 27SiMn.
The form of Metal Substrate carbide alloy is powder, according to mass percent, consisting of：0.6% C, 20.0%
Cr, 2.8% Fe, 0.1% Mo, 22.0% Co, 2.4% Si, 1.7% B, 0.01% Al, 5.5% W,
0.01% V, 44.88% Ni.
Centrifugal rotation sintering method is integrally to be put into component shown in FIG. 1 in induction heater to heat, and heating temperature is
1050 DEG C, centrifugal rotation speed is 3000 turns/min.
Centrifugal rotation sintering the internal layer of carbide alloy containing Metal Substrate mining hydraulic cylinder block directly soak quenching and
450 DEG C of tempering water coolings, the metallographic structure of cylinder body base material are tempered sorbite.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of mining hydraulic cylinder block, it is characterised in that：The inner wall of the mining hydraulic cylinder block is evenly distributed with one
Layer Metal Substrate carbide alloy coating, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical junction
It closes；The mining hydraulic cylinder block is steel.
2. mining hydraulic cylinder block according to claim 1, it is characterised in that：The Metal Substrate carbide alloy coating
Thickness be 1~5mm.
3. mining hydraulic cylinder block according to claim 1, it is characterised in that：The Metal Substrate carbide alloy coating
Raw material for Metal Substrate carbide alloy, form is alloy powder, the mass percent group of the Metal Substrate carbide alloy
Become：0.02~6.0% C, 0.1~20.0% Cr, 0.1~15.5% Fe, 0.1~15.5% Mo, 0.1~
22.0% Co, 0.01~4.5% Si, 0.01~4.5% B, 0.01~0.05% Al, 0.01~30.0% W,
0.0~0.1% V, 40.0~98.47% Ni.
4. mining hydraulic cylinder block according to claim 1, it is characterised in that：The material of the mining hydraulic cylinder block
Matter is medium carbon alloy steel.
5. mining hydraulic cylinder block according to claim 4, it is characterised in that：The medium carbon alloy steel is 42CrMoA
Alloy or 27SiMn alloys.
6. a kind of preparation method of mining hydraulic cylinder block as described in claim 1, it is characterised in that：Including following step
Suddenly：
It is first that medium carbon alloy steel is machined into mining hydraulic cylinder block blank；Then pass through HIP sintering method
Or Metal Substrate carbide alloy is evenly distributed on the inner wall of mining hydraulic cylinder block blank by centrifugal rotation sintering method, is formed
Metal Substrate carbide alloy coating, inner wall and the Metal Substrate carbide alloy coating of mining hydraulic cylinder block are metallurgical binding.
7. the preparation method of mining hydraulic cylinder block according to claim 6, it is characterised in that：The hot isostatic pressing
Sintering method is：
The mining hydraulic cylinder block blank that Metal Substrate carbide alloy is evenly distributed with to inner wall carries out whole hot isostatic pressing burning
Knot, HIP sintering technique are：Sintering temperature is 1050~1250 DEG C, and atmosphere pressures are 100~200Mpa, and atmosphere is argon
Gas.
8. the preparation method of mining hydraulic cylinder block according to claim 6, it is characterised in that：The centrifugal rotation
Sintering method is：
The mining hydraulic cylinder block blank that inner wall is evenly distributed with to Metal Substrate carbide alloy is placed on induction heater or perseverance
Whole heating is carried out in warm resistance furnace, heating temperature is 1050~1350 DEG C, and centrifugal rotation speed is 800~3000 turns/min.
9. the preparation method of mining hydraulic cylinder block according to claim 6, it is characterised in that：It is burnt by hot isostatic pressing
Knot or the mining hydraulic cylinder block with Metal Substrate carbide alloy coating of centrifugal rotation sintering are directly heat-treated.
10. the preparation method of mining hydraulic cylinder block according to claim 9, it is characterised in that：The heat treatment
It is the mining hydraulic oil cylinder with Metal Substrate carbide alloy coating to being obtained after HIP sintering or centrifugal rotation sintering
Cylinder body carries out integral heating quenching or normalizing or carries out integral quenching using the waste heat that HIP sintering and centrifugal rotation are sintered
Or normalized treatment, and subsequent tempering heat treatment is carried out, the cylinder body ontology metallographic structure after heat treatment is tempered sorbite or pearly-lustre
Body adds ferrite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711320983.7A CN108165864A (en) | 2017-12-12 | 2017-12-12 | A kind of mining hydraulic cylinder block and its manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109530704A (en) * | 2019-01-30 | 2019-03-29 | 武汉天和技术股份有限公司 | A kind of preparation method of plasma flare hollow cathode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735228A (en) * | 2017-01-06 | 2017-05-31 | 昆山中士设备工业有限公司 | A kind of manufacture method of plastic molding press machine barrel |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735228A (en) * | 2017-01-06 | 2017-05-31 | 昆山中士设备工业有限公司 | A kind of manufacture method of plastic molding press machine barrel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530704A (en) * | 2019-01-30 | 2019-03-29 | 武汉天和技术股份有限公司 | A kind of preparation method of plasma flare hollow cathode |
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