CN207806629U - A kind of composite bimetal pipe material based on heat and other static pressuring processes - Google Patents
A kind of composite bimetal pipe material based on heat and other static pressuring processes Download PDFInfo
- Publication number
- CN207806629U CN207806629U CN201820149247.3U CN201820149247U CN207806629U CN 207806629 U CN207806629 U CN 207806629U CN 201820149247 U CN201820149247 U CN 201820149247U CN 207806629 U CN207806629 U CN 207806629U
- Authority
- CN
- China
- Prior art keywords
- layer
- alloy
- pipe
- base material
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a kind of composite bimetal pipe material based on heat and other static pressuring processes, belongs to hip moulding technical field.The composite bimetal pipe material has double-layer structure, and inner layer is base material tube layer, and using 45# Steel materials, outer layer is the alloy-layer obtained by HIP sintering, and the alloy layer material is nickel-base alloy, high vanadium tool steel or cobalt-base alloys.Composite bimetal pipe material described in the utility model has the advantages that high abrasion, highly corrosion resistant, solves the problems, such as current composite-metal rod machining location difficulty, while saving material and machining expense.
Description
Technical field
The utility model belongs to hip moulding technical field, and in particular to a kind of double gold based on heat and other static pressuring processes
Belong to composite pipe.
Background technology
With global rubber and plastic industry, chemical industry, LED industry, line cable industry, wood moulding industry, building material industry, feed row
The fast development of industry, food service industry, these industries equip double screw extruder in large quantities, due to additive, filler it is continuous
Be added, modified plastics has become the trend of Plastics Development, to the screwing element of double screw extruder propose high requirement,
It needs more wear-resisting, corrosion resistant raw material to provide the service life of screwing element, reduces the maintenance down maintenance time of extruder
Number improves yield.
The screw element of China's double screw extruder at present, the material such as kneading block or thread bush, the screw element are basic
It is made of high-speed tool steel (W6Mo5Cr4V2) and nitrated steel (38CrMoAl) pole, for example, double screw extruder is using high
When kneading block or thread bush made of fast tool steel or nitrated steel carry out extrusion work, when in pressing materials added with big
When measuring the fillers such as glass, ceramics, resin, nylon, calcium carbonate, strong acid and strong base, the kneading block or thread bush can be worn quickly
And corrosion, the reduction of extruder service life is in turn resulted in, so that 1~2 month must must just replace kneading block or thread bush, into
And the double screw extruder frequent shutdown is made to repair, influence the double screw extruder job stability.
The hot isostatic pressing powder metallurgy composite-metal rod for having import currently on the market, can improve screwing element uses the longevity
When ordering, but being machined due to hot isostatic pressing composite-metal rod, it is related to the orientation problem of plug, processing efficiency is low.Machine is set to add
Work cost sharply increases, while material cost is also expensive, limits the commercial application of hot isostatic pressing composite-metal rod.
Utility model content
In view of the deficiency of the prior art, the utility model provides a kind of bimetallic based on heat and other static pressuring processes
The preparation method and its product of composite pipe, the product have the advantages that high abrasion, highly corrosion resistant, solve current metal bar
Material machines location difficulty problem, while saving material and machining expense.
A kind of composite bimetal pipe material based on heat and other static pressuring processes provided by the utility model,
It is base material tube layer that the composite bimetal pipe material, which has double-layer structure, inner layer, and using 45# Steel materials, outer layer is
The alloy-layer obtained by HIP sintering, the alloy layer material are nickel-base alloy, high vanadium tool steel or cobalt-base alloys.
The utility model has the advantage of：
(1) the utility model eliminates cumbersome composite-metal rod centralized positioning problem, directly fixed by base material pipe orifice
Position.Spline groove processing improves the toughness of composite bimetal pipe material product on the base material pipe of mild steel or stainless steel.
(2) wearability of product is greatly improved using high-performance powder for the spiral part to work.
Description of the drawings
Fig. 1 is the preparation method flow chart of the composite bimetal pipe material based on heat and other static pressuring processes of the utility model.
Fig. 2 is the principle schematic that heat and other static pressuring processes prepare composite bimetal pipe material in the utility model.
Fig. 3 is composite bimetal pipe material cross-sectional structure schematic diagram prepared by the utility model.
In figure：
1. base material pipe；2. outer jacket；3. alloy powder；4. lower ring cowling；Ring cowling on 5.；6. deaeration pipe；7. alloy-layer.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
The utility model is a kind of composite bimetal pipe material based on heat and other static pressuring processes, is also provided a kind of quiet based on heat etc.
The preparation method for pressing the composite bimetal pipe material of technique, includes the following steps：
It is prepared by the first step, aerosol alloy powder：Pre-alloyed iron-based high-speed powdered steel, nickel are prepared using gas atomization
Base alloy powder, Co-based alloy powder, high vanadium tool steel and different weight ratio reinforced phase (including WC/TiC/TiN) mixing
Composite powder.
Second step, base material pipe are chosen and are prepared：Pith of the base material pipe as composite pipe, size and material according to
The material of actual product layout design, the base material pipe includes mild steel, stainless steel, titanium alloy and nickel-base alloy etc..In double spiral shells
In bar screwing element, select mild steel or stainless steel series as base material pipe.The endoporus of base material pipe is from wall thickness according to different productions
Product design and reserve follow-up machining allowance.
Third walks, and outer jacket is installed in base material tube outside：The outer jacket is circular tube structure, using low-carbon steel material,
The wall thickness 2-4mm of the outer jacket, the internal diameter of outer jacket are more than the outer diameter of base material pipe.By positioning tool fix base material pipe with
Outer jacket, then ring cowling seals under the annular section installation between outer jacket and base material pipe, and by argon arc welding by lower ring cowling
It is welded on base material pipe and outsourcing is put on.
4th step, dress powder, vibration, capping：By filling powder tooling, the annular space between base material pipe and outer jacket is built-in
Enter alloy powder.In order to ensure to fill powder density and shrink the control of size, pass through drop type shaking platform jolt ramming powder.Then argon
Upper ring cowling is welded between base material pipe and outer jacket by arc-welding, seal in alloy powder.It has been fixedly connected on the upper ring cowling de-
Tracheae, connection alloy powder space and extraneous vacuum environment, are used for the degassing of sintering process.
5th step, degassing：4th step is filled to the base material pipe after powder to be put into pit furnace, is vacuumized, vacuum degree needs
Reach<1×10-3Pa.Temperature is increased to 300 DEG C~500 DEG C and starts to deaerate, degassing time：28~48 hours.
6th step, HIP sintering：Base material pipe and outer jacket after degassing are put into using tooling bucket in hot isostatic pressing stove
HIP sintering is carried out, sintering temperature selects different HIP sintering systems according to different alloy powder ingredients.Choosing
Take temperature range：900 DEG C~1300 DEG C；Pressure 100Mpa~150Mpa, 4 hours heat-insulation pressure keeping time.
7th step, the endoporus that direct thimble withstands base material pipe carry out outer circle vehicle light, remove outer jacket, upper ring cowling and lower ring
Lid, obtains the composite bimetal pipe material of the utility model.
It is base material tube layer that the composite bimetal pipe material, which has double-layer structure, inner layer, and using 45# Steel materials, outer layer is
The alloy-layer obtained by HIP sintering, the alloy layer material are nickel-base alloy, high vanadium tool steel or cobalt-base alloys.
Embodiment 1：
A kind of preparation method of the composite bimetal pipe material based on heat and other static pressuring processes, the flow in conjunction with shown in Fig. 1 are specific to walk
It is rapid as follows：
It is prepared by the first step, aerosol alloy powder：
Elemental composition mass percent is as follows in high vanadium tool steel powder prepared by aerosolization：
Cr：4-10%；Mo：1-5%；C：2.5-5%；V：9-20%；Remaining is Fe.
Powder size is：0-500um；Oxygen content<200ppm；
Second step, base material pipe prepare：Twin-screw STS65 types are selected, as shown in Fig. 2, common No. 45 steel of base material pipe 1
Pipe, maximum outside diameter greatly at least 6mms of the outer diameter R than screw thread original paper；Ensure that spline is entirely to process on base material pipe 1.It is preferred that
, the base material pipe 1 needs to select cold drawing accurate pipe.
Third walks, and outer jacket 2 prepares to weld with outer jacket 2：Outer jacket 2 uses low-carbon steel material, wall thickness d=2.5mm；And
Prepare the upper ring cowling 5 and lower ring cowling 4 of annular；It first passes through positioning tool and fixes base material pipe 1 and outer jacket 2, then cover ring up and down
Lower ring cowling 4 is welded on the annular section between base material pipe 1 and outer jacket 2 by argon arc welding, realizes the annular section by lid 4
Sealed bottom.
4th step, dress powder, vibration, capping：By filling powder tooling, aerosol alloy powder 3 is filled out in outer jacket 2 and base material
In annular section between pipe 1；In order to ensure to fill powder density and shrink the control of size, closed by drop type shaking platform jolt ramming
Bronze end 3.Then ring cowling 5 is sealed up in argon arc welding, and deaeration pipe 6, the deaeration pipe 6 connection have been welded on the upper ring cowling 5
Alloy powder 3 and extraneous vacuum environment.
5th step, degassing：The outer jacket 2 being sealed is connect by deaeration pipe 6 with vacuum system, pit furnace is put into
In.General 500 DEG C of degassing temperature.Heating rate is 100 DEG C/h, and vacuum degree needs to reach 1 × 10-3Pa.It comes out of the stove, seals deaeration pipe 6.
6th step, HIP sintering：Tooling bucket is applied in combination in outer jacket 2 and base material pipe 1 after degassing, and to be put into heat etc. quiet
HIP sintering is carried out in pressure stove, sintering temperature is 1150 DEG C, pressure 150Mpa, and the heat-insulation pressure keeping time is 4 hours.
7th step after HIP sintering, removes outer jacket, upper ring cowling and lower ring cowling, obtains composite bimetal pipe material.Institute
The inner substrate for the composite bimetal pipe material stated is No. 45 steel, and outer layer is high vanadium tool steel material layer.
When blanking is processed, direct thimble withstands 1 endoporus of base material pipe and carries out outer circle vehicle light, processing respective threaded etc.
Shape.
Embodiment 2：
A kind of preparation method of the bimetallic tubing based on heat and other static pressuring processes, the flow in conjunction with shown in Fig. 1, specific steps are such as
Under：
It is prepared by the first step, alloy powder：The powder of stainless steel ingredient of wear resistant corrosion resistant prepared by aerosolization is as follows：
Cr：20-30%；Mo：1-5%；C：2.5-5%；V：3-10%；Remaining is Fe.
Powder size is：0-500um；Oxygen content<200ppm.
Second step, base material pipe prepare：Select twin-screw STS75 types, 304 stainless-steel pipes of base material pipe 1, outer diameter R ratios
The big 3mm of maximum outside diameter of screw thread original paper；Ensure that spline is entirely above 304 stainless steel tubes.In order to ensure product size precision,
This 304 stainless steel tube needs to select cold drawing accurate pipe.
Third walks, outer jacket installation：Outer jacket 2 is using low-carbon steel material, wall thickness d=2.5mm；And prepare the upper ring of annular
Lid 5 and lower ring cowling 4.It first passes through positioning tool and fixes base material pipe 1 and outer jacket 2, then cover ring cowling 4 up and down, pass through argon arc welding
Lower ring cowling 4 is welded on annular section one end among base material pipe 1 and outer jacket 2.
4th step fills powder and sealing：By filling powder tooling, it is packed into the alloy powder 3 that the first step prepares.In order to ensure to fill powder
Density and contraction size, pass through drop type shaking platform jolt ramming powder.Then ring cowling 5 in argon arc welding welding.In the upper ring
Deaeration pipe 6 is fixedly connected on lid 5, the deaeration pipe 6 is welded on the through-hole on ring cowling 5.
5th step, degassing：After sealed connection base material pipe 1 and 2 structure of outer jacket pass through deaeration pipe 6 and vacuum system and connect
It connects, is put into pit furnace.500 DEG C of temperature is set, and heating rate is 100 DEG C/h, and vacuum degree needs to reach 1 × 10-3Pa is opened
Begin to deaerate, degassing time 28 hours.It comes out of the stove, seals deaeration pipe 6.
6th step, HIP sintering：Tooling bucket is applied in combination in the base material pipe 1 and outer jacket 2 to have deaerated, and to be put into heat etc. quiet
HIP sintering, 1130 DEG C, pressure 130Mpa of sintering temperature, heat-insulation pressure keeping 4 hours are carried out in pressure stove.
7th step, is sintered the composite structure of completion, and the endoporus that direct thimble withstands base material pipe carries out outer circle vehicle light, remove on
Ring cowling 5, lower ring cowling 4 and outer jacket 2, obtain the composite pipe with double-metal layer of the utility model, and base material pipe 1 is not 304 not
Become rusty Steel material, and outer layer is the stainless steel layer that HIP sintering obtains.
Embodiment 3：
A kind of bimetal tube preparation method based on heat and other static pressuring processes, steps are as follows：
It is prepared by the first step, alloy powder：The Co-based alloy powder ingredient of wear resistant corrosion resistant prepared by aerosolization is as follows：
Cr：20-30%；Mo：1-5%；C：0.5~1.5%；B：3-10%；Si:1-5% remaining is Ni.
Powder size is：0-500um；Oxygen content<200ppm；
Second step, base material pipe prepare：Twin-screw STS75 types are selected, No. 45 steel pipes of base material pipe 1, outer diameter is than screw thread original
The big 3mm of maximum outside diameter of part；Ensure that spline is entirely above No. 45 steel pipes.In order to ensure product size precision, this No. 45 steel
Pipe needs to select cold drawing accurate pipe.
Third walks, the installation and sealing of outer jacket 2：Outer jacket 2 is using low-carbon steel material, wall thickness d=2.5mm；It first passes through
Positioning tool fixes base material pipe 1 and outer jacket 2, then covers ring cowling 4 up and down, ring cowling 4 is descended well by argon arc welding welding.
4th step, dress powder, vibration, capping：By filling powder tooling, it is packed into the alloy powder that the first step prepares.In order to ensure
It fills powder density and shrinks the control of size, pass through drop type shaking platform jolt ramming powder.Then argon arc welding is bound, specially will be upper
Ring cowling 5 is welded to connect the annular section between base material pipe 1 and outer jacket 2, realizes the sealing to alloy powder 3.Described
Deaeration pipe 6 is welded on upper ring cowling 5 in advance.
5th step, degassing：The good base material pipe 1 of welded seal and the combination of outer jacket 2 are put into pit furnace, by de-
Tracheae is connect with vacuum system.450 DEG C of degassing temperature is set, and heating rate is 100 DEG C/h, and vacuum degree needs to reach 1 × 10- 3Pa.It comes out of the stove, seals deaeration pipe 6.
6th step, HIP sintering：It has taken off the base material pipe 1 of gas and outer jacket 2 is applied in combination tooling bucket to be put into heat etc. quiet
HIP sintering, sintering range are carried out in pressure stove：920℃；Pressure 140Mpa, heat-insulation pressure keeping 2 hours.
7th step, after the completion of sintering, direct thimble withstand base material pipe 1 endoporus carry out outer circle vehicle light, remove upper ring cowling 5,
Lower ring cowling 4 and outer jacket 2 obtain the composite bimetal pipe material with double-layer structure.
As shown in figure 3, it is base material tube layer that composite bimetal pipe material prepared by the utility model, which has double-layer structure, inner layer,
45# Steel materials, outer layer are the alloy-layer obtained by HIP sintering, and the alloy layer material is nickel-base alloy.
To the interface binding power of the composite bimetal pipe material, joint thickness, alloy-layer hardness, wearability, electrode
Corrosive effect is tested, and test result is as follows：
| Binding force | Joint thickness | Alloy-layer hardness | Dry sand wear weight loss | 10% hcl corrosion current potential | |
| 45#+ nickel-base alloys | >400Mpa | >300um | HRC:65 | 0.0149g | 2.500×10-6A/cm2 |
Embodiment 4：
A kind of preparation method of the bimetallic tubing based on heat and other static pressuring processes, steps are as follows：
It is prepared by the first step, alloy powder：Composite powder, matrix：Co-based alloy powder ingredient is as follows；Weight ratio：35%
Wear-resisting reinforced phase：WC；Weight ratio：65%；
Base material：Cr：20-30%；Mo：1-5%；C：0.5~1.5%；B：3-10%；Si:1-5% remaining is Ni.
Powder size is：Less than 500um；Oxygen content<200ppm.
Second step, base material pipe prepare：Twin-screw STS75 types are selected, No. 45 steel pipes of base material pipe 1, outer diameter is than screw thread original
The big 3mm of maximum outside diameter of part；Ensure that spline is entirely above No. 45 steel pipes.In order to ensure product size precision, this No. 45 steel
Pipe needs to select cold drawing accurate pipe.
Third walks, the installation and sealing of outer jacket 2：Outer jacket 2 is using low-carbon steel material, wall thickness d=2.5mm；It first passes through
Positioning tool fixes base material pipe 1 and outer jacket 2, then covers ring cowling 4 up and down, ring cowling 4 is descended well by argon arc welding welding.
4th step, dress powder, vibration, capping：By filling powder tooling, it is packed into the alloy powder that the first step prepares.In order to ensure
It fills powder density and shrinks the control of size, pass through drop type shaking platform jolt ramming powder.Then argon arc welding is bound, specially will be upper
Ring cowling 5 is welded to connect the annular section between base material pipe 1 and outer jacket 2, realizes the sealing to alloy powder 3.Described
Deaeration pipe 6 is welded on upper ring cowling 5 in advance.
5th step, degassing：The good base material pipe 1 of welded seal and the combination of outer jacket 2 are put into pit furnace, by de-
Tracheae 6 is connect with vacuum system.450 DEG C of degassing temperature is set, and heating rate is 100 DEG C/h, and vacuum degree needs to reach 1 × 10- 3Pa.It comes out of the stove, seals deaeration pipe 6.
6th step, HIP sintering：It has taken off the base material pipe 1 of gas and outer jacket 2 is applied in combination tooling bucket to be put into heat etc. quiet
HIP sintering, sintering range are carried out in pressure stove：920℃；Pressure 140Mpa, heat-insulation pressure keeping 2 hours.
7th step, after the completion of sintering, direct thimble withstand base material pipe 1 endoporus carry out outer circle vehicle light, remove upper ring cowling 5,
Lower ring cowling 4 and outer jacket 2 obtain the composite bimetal pipe material with double-layer structure.
As shown in figure 3, it is base material tube layer that composite bimetal pipe material prepared by the utility model, which has double-layer structure, inner layer,
Outer layer is the alloy-layer obtained by HIP sintering, and the alloy-layer is nickel-bass alloy material layer.
To obtain the interface binding power of composite bimetal pipe material, joint thickness, alloy-layer hardness, alloy-layer wearability,
Corrosion resistance is tested, as a result as follows：
Using the composite bimetal pipe material provided by the utility model based on heat and other static pressuring processes, can be used for making granulation
Machine screwing element.The screwing element includes threaded block and kneading block, wherein spline groove processing is on base material pipe 1, screw thread
Part processing is on the alloy-layer of bimetallic surface.The composite bimetal pipe material being prepared by above-mentioned the utility model, base
Binding force between body and surface alloying layer is more than 300MPa, and joint thickness is more than 300 microns, alloy-layer hardness HRC68, will
It is processed into screwing element product, and resulting product has higher toughness, the spiral part of work very big using high-performance powder
Improve the wearability of product.
Claims (1)
1. a kind of composite bimetal pipe material based on heat and other static pressuring processes, it is characterised in that：The composite bimetal pipe material tool
It is base material tube layer to have double-layer structure, inner layer, and using 45# Steel materials, outer layer is the alloy-layer obtained by HIP sintering, institute
The alloy layer material stated is that nickel-base alloy, high vanadium tool steel, cobalt-base alloys or different weight ratio reinforced phase include WC/TiC/
The composite alloy of TiN mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820149247.3U CN207806629U (en) | 2018-01-29 | 2018-01-29 | A kind of composite bimetal pipe material based on heat and other static pressuring processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820149247.3U CN207806629U (en) | 2018-01-29 | 2018-01-29 | A kind of composite bimetal pipe material based on heat and other static pressuring processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207806629U true CN207806629U (en) | 2018-09-04 |
Family
ID=63322279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820149247.3U Expired - Fee Related CN207806629U (en) | 2018-01-29 | 2018-01-29 | A kind of composite bimetal pipe material based on heat and other static pressuring processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207806629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893848A (en) * | 2021-01-15 | 2021-06-04 | 中国矿业大学 | Preparation method of MoFeB metal ceramic threaded element |
-
2018
- 2018-01-29 CN CN201820149247.3U patent/CN207806629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893848A (en) * | 2021-01-15 | 2021-06-04 | 中国矿业大学 | Preparation method of MoFeB metal ceramic threaded element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108247063A (en) | A kind of composite bimetal pipe material preparation method based on heat and other static pressuring processes | |
| CN108284228A (en) | It is a kind of based on the double screw extruder of the heat and other static pressuring processes preparation method of compound whole bushing | |
| RU2664119C2 (en) | Composite materials with metallic matrix and methods of their production | |
| CN207789689U (en) | A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes | |
| RU2010147810A (en) | A COMPOSITE PREPARATION HAVING A MANAGED POROSITY PORT IN, AT LEAST, ONE LAYER, AND WAYS OF ITS MANUFACTURE AND USE | |
| CN207806629U (en) | A kind of composite bimetal pipe material based on heat and other static pressuring processes | |
| CN102042252B (en) | Noncorrosive pump made of carbon fiber resin-base composite material | |
| JP2022545192A (en) | Additively manufactured extruded parts containing gratings | |
| EP0221634A1 (en) | A powder-metallurgy method for producing clad tubular product | |
| CN106735228A (en) | A kind of manufacture method of plastic molding press machine barrel | |
| CN103411072B (en) | The corrosion resistant alloy liner composite tee of built-up welding in transition arc and manufacture method thereof | |
| CN108284227A (en) | A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes | |
| CN218670669U (en) | PFA coated butterfly plate without air lines | |
| CN102128207A (en) | Combination bearing for air condition compressor and manufacturing method thereof | |
| CN101603539B (en) | Corrosion-resistant pump made from carbon/carbon composite materials | |
| CN112893848B (en) | Preparation method of MoFeB metal ceramic threaded element | |
| CN201896773U (en) | Anti-corrosive pump made of carbon fiber resin matrix composite | |
| CN105132850A (en) | Nickel-based powder spray-welding process for large gate | |
| CN115921855A (en) | Forming agent automatic batching machine capable of weighing at fixed point and controlling independently | |
| CN102230173B (en) | Full-coating cladding thread element for parallel double-screw extruder | |
| CN108673067A (en) | A kind of production method of bearing of compressor | |
| CN103143713A (en) | Method of using powder metallurgy fabrication for manufacturing integral header and tube replacement sections | |
| CN107244049A (en) | A kind of preventing water leakage machine barrel and its preparation technology for double screw extruder | |
| CN206918252U (en) | A kind of Novel down-hole tool combinations sealing device | |
| CN201099537Y (en) | Powder splitting device for dividing one-path conveying gas into multiple path |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20210129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |