CN207789689U - A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes - Google Patents
A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes Download PDFInfo
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- CN207789689U CN207789689U CN201820149260.9U CN201820149260U CN207789689U CN 207789689 U CN207789689 U CN 207789689U CN 201820149260 U CN201820149260 U CN 201820149260U CN 207789689 U CN207789689 U CN 207789689U
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- machine barrel
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Abstract
The utility model discloses a kind of direct coating comminutor machine barrel based on heat and other static pressuring processes, belongs to hip moulding technical field.Direct coating comminutor machine barrel provided by the utility model has two layers, and outer layer is shell layer, and internal layer is alloy-layer, and the alloy-layer selection HIP sintering mode obtains.The utility model directly does alloy-layer on the inside of machine barrel makes it be integrated with machine barrel, reduces machine barrel and inlays the precision and machining cost problem that inner sleeve is brought；Alloy powder high abrasion, corrosion-resistant after heat and other static pressuring processes, is 5~10 times of current machine barrel service life.
Description
Technical field
The utility model belongs to hip moulding technical field, and in particular to arrives a kind of based on the straight of heat and other static pressuring processes
Connect coating comminutor machine barrel.
Background technology
With global rubber and plastic industry, chemical industry, LED industry, line cable industry, wood moulding industry, building material industry, feed row
Double screw extruder increase in demand is equipped in the fast development of industry, food service industry in large quantities.Due to additive, filler it is continuous
It is added, modified plastics has become the trend of Plastics Development, to the core component of double screw extruder --- machine barrel proposes pole
High requirement needs more wear-resisting, corrosion resistant raw material to provide the service life of machine barrel, reduces the maintenance down dimension of extruder
Number is protected, yield is improved.
The machine barrel of China's double screw extruder uses No. 45 steel as shell substantially at present, then uses and inlays neck bush
Mode improves the service life of machine barrel, and by more resleeve, recycling shell is cost-effective.But machine is increased in this way and is added
Work difficulty, and extend product delivery cycle.When in pressing materials be added with a large amount of glasses, ceramics, resin, nylon,
When the fillers such as calcium carbonate, strong acid and strong base, neck bush replaces frequently, it is again bushing again after be difficult to ensure the concentricity of machine barrel, into
And the double screw extruder frequent shutdown is made to repair, the double screw extruder job stability is influenced, and seriously affect product
Quality.
Utility model content
In view of the above-mentioned deficiencies, the utility model provides the direct coating comminutor machine barrel of a kind of high abrasion, highly corrosion resistant,
Machine barrel before instead inlays neck bush.The direct coating comminutor machine barrel is by heat and other static pressuring processes, directly in machine barrel
Alloy-layer is done in inside makes it be integrated with machine barrel, reduces machine barrel and inlays the precision and machining cost problem that inner sleeve is brought.
A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes provided by the utility model, the direct coating
Comminutor machine barrel outer wall is shell layer, and inner wall is the alloy-layer that HIP sintering obtains, and the alloy layer material is Ni-based conjunction
Golden, high vanadium tool steel or cobalt-base alloys, or add the above-mentioned alloy of reinforced phase.
The utility model has the advantage of：
(1) the utility model substantially increases machine barrel using hot isostatic pressing method in the direct alloy-layer of machine tube inner wall
Wear resistance and corrosion resistance.
(2) service life of machine barrel provided by the utility model improves 5~10 times relative to the machine barrel of alloy-free layer.
Description of the drawings
Fig. 1 is a kind of preparation method flow of the direct coating comminutor machine barrel based on heat and other static pressuring processes of the utility model
Figure.
Fig. 2 is the structural schematic diagram of jacket and alloy powder in whole internal coated layer machine barrel installation.
Fig. 3 is the external overall structure diagram of whole internal coated layer machine barrel or shell before hot isostatic pressing.
Fig. 4 is the direct coating comminutor barrel configuration schematic diagram that is obtained by processing after HIP sintering.
Specific implementation mode
Below in conjunction with drawings and examples, the utility model is described in further detail.
The utility model is a kind of direct coating comminutor machine barrel based on heat and other static pressuring processes, is also provided a kind of based on heat
The preparation method of the direct coating comminutor machine barrel of isostatic pressing process, is as follows：
It is prepared by the first step, powder：Pre-alloyed alloy powder is prepared using gas atomization, the alloy powder is nickel
Base alloy powder, high vanadium tool steel powder or Co-based alloy powder, or addition different weight ratio reinforced phase (including WC/TiC/
TiN complex alloy powder).This alloy powder high abrasion, corrosion-resistant after heat and other static pressuring processes, is the current machine barrel service life
5~10 times.
Interior jacket is fixed position inside housings by positioning tool, then installs bottom end cover, pass through argon arc by second step
Bottom end cover is welded.
According to different housings situation using jacket design in difference.Alloy-layer is directly done on blank, can design 1
Blank material goes out more than one piece entirety internal coated layer machine barrel；Directly using machine barrel as shell, alloy-layer is done in housing upper face, can only once do one
Part, every shell are required for designing interior jacket.
The interior jacket uses two pipes of low-carbon steel material, wall thickness 2-4mm.
Third walks, and fills powder：By filling powder tooling, powder is packed into the space of shell and interior jacket.In order to ensure that dress powder is close
Degree and the control for shrinking size, pass through drop type shaking platform jolt ramming powder.Then upper end cover is fixedly mounted, has on upper end cover
Deaeration pipe has been welded in through-hole, through hole.
4th step, degassing：The good shell of welded seal is connect by deaeration pipe with vacuum system, pit furnace is put into
In.General 300 DEG C~500 DEG C of degassing temperature.Vacuum degree needs reach<1×10-3Pa。
5th step, HIP sintering：It has taken off the shell of gas and has been put into hot isostatic pressing stove that carry out heat etc. quiet using tooling bucket
Pressure sintering, sintering temperature select different HIP sinterings to formulate according to different powdered ingredients.
The temperature range of the HIP sintering：900 DEG C~1300 DEG C；Pressure 100Mpa~150Mpa.
6th step machines direct coating comminutor machine barrel：Interior packet is removed in the shell that hot isostatic pressing is completed, direct wire cutting
Set, and allowance is removed over the alloyed layer, inner hole grinding obtains the direct coating comminutor machine barrel of the utility model.
The direct coating comminutor machine barrel outer wall is shell layer 7, and inner wall is the alloy-layer 8 that HIP sintering obtains,
8 material of the alloy-layer is nickel-base alloy, high vanadium tool steel or cobalt-base alloys, or the above-mentioned alloy of addition reinforced phase.
Embodiment 1：
A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes, flow as shown in Figure 1, specifically
Steps are as follows：
It is prepared by the first step, powder 3：High vanadium tool steel powder prepared by aerosolization, ingredient are as follows：
Cr：4-10%；Mo：1-5%；C：2.5-5%；V：9-20%；Remaining is Fe.
The high vanadium tool steel powder grain size is less than 500um.
Second step fixes shell 1 and interior jacket 2 by positioning tool, then fixes bottom end cover 5.
The shell 1 selects comminutor machine barrel, as shown in Figures 2 and 3, twin-screw STS65 types, shell 1 is selected to adopt
With common No. 45 steel pipes, it is in 8 words that interior jacket 2, which selects two steel pipes of low-carbon steel material, wall thickness 2.5mm, such as Fig. 2, two steel pipes,
Type is fixed on 1 interior location of shell.No. 45 steel select cold drawing accurate pipe.
As shown in Fig. 2, the shell 1 can be blank square stock or circle material, direct prefabricated 8 word hole；It can also be welding
Good water route, the shell for holding flange hole successfully.
Third walks, and fills powder：By filling powder tooling, powder 3 is packed into the space of shell 1 and interior jacket 2.In order to ensure to fill
Powder density and the control for shrinking size, pass through drop type shaking platform jolt ramming powder.Then end cap 4 is sealed up in argon arc welding.Such as Fig. 3,
Deaeration pipe 6 is welded in advance on the upper end cover 4, in order to the connection of powder and vacuum system in degasification process.
4th step, degassing：Shell 1 is put into pit furnace, deaeration pipe 6 is connect with vacuum system.Degassing temperature
500 DEG C are set as, heating rate is 100 DEG C/h, and vacuum degree needs to reach 1 × 10-3Pa.Deaeration pipe 6 is sealed after the completion of degassing.
5th step, HIP sintering：Shell 1 after degassing is put into hot isostatic pressing stove that carry out heat etc. quiet using tooling bucket
Pressure sintering is sintered warm 1150 DEG C, pressure 150Mpa of temperature, 4 hours heat-insulation pressure keeping time.
6th step, machining obtain direct coating comminutor machine barrel：HIP sintering complete shell 1 into line density with
Size detection.Blanking after qualification, machining remove the balance of interior jacket 2 and alloy-layer, obtain direct coating comminutor machine
Cylinder.
As shown in figure 4, the direct coating comminutor machine barrel outer wall is No. 45 steel sheel floor 7, inner wall burns for hot isostatic pressing
Obtained alloy-layer 8 is tied, the alloy layer material is high vanadium tool steel, and thickness requires to be added according to the machine barrel size of extruder
Work.
Embodiment 2
A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes, steps are as follows：
It is prepared by the first step, powder 3：The powder stainless steel powdered ingredients of wear resistant corrosion resistant prepared by aerosolization are as follows：
Cr：20-30%；Mo：1-5%；C：2.5-5%；V：3-10%；Remaining is Fe.The grain of the powder of stainless steel
Diameter is less than 500um.
Second step fixes shell 1 and interior jacket 2 by positioning tool, then fixes bottom end cover 5.
The shell 1 is the rectangular blank material of bulk, selects twin-screw STS75 types, 304 stainless steels of shell 1.
The interior jacket 2 is using two pipes of low-carbon steel material, pipe wall thickness 2.5mm.
Third walks, and fills powder：By filling powder tooling, powder 3 is packed between shell 1 and interior jacket 2.In order to ensure that dress powder is close
Degree and the control for shrinking size, pass through drop type shaking platform jolt ramming powder.Then end cap 4, the upper end are sealed up in argon arc welding
Deaeration pipe 6 has been welded on lid 4.
4th step, degassing：Shell is put into pit furnace, is connect with vacuum system by deaeration pipe 6.Degassing temperature
500 DEG C, 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.
5th step, HIP sintering：Shell after degassing is put into hot isostatic pressing stove that carry out heat etc. quiet using tooling bucket
Pressure sintering, 1130 DEG C of sintering temperature；Pressure 130Mpa, heat-insulation pressure keeping 4 hours.
6th step, checking machine fabricated product：The shell completed is sintered into line density and size detection.Blanking after qualification, is pressed
It is processed according to design size, removes 8 allowance of interior jacket 2 and alloy-layer, the direct coating for obtaining the utility model is granulated
Machine machine barrel, outer layer are shell layer 7, and internal layer is alloy-layer 8.
Embodiment 3
A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes, steps are as follows：
It is prepared by the first step, 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；
Second step fixes shell 1 and interior jacket 2 by positioning tool, then fixes bottom end cover 5.
The shell 1 is bulk circular blanks material, selects twin-screw STS75 types, No. 45 steel of shell；Described is interior
Jacket 2 is using two pipes of low-carbon steel material, pipe wall thickness 2.5mm.
Third walks, and fills powder：By filling powder tooling, it is packed into powder 3.In order to ensure to fill powder density and shrink the control of size,
Pass through drop type shaking platform jolt ramming powder 3.Then end cap is sealed up in argon arc welding, and deaeration pipe 6 has been welded on upper end cover 4.
4th step, degassing：1 powder inside 3 of shell is connect by deaeration pipe 6 with vacuum system, pit furnace is put into
In.450 DEG C of degassing temperature, heating rate are 100 DEG C/h, and vacuum degree needs to reach 1 × 10-3Pa.It comes out of the stove, seals deaeration pipe 6.
5th step, HIP sintering：It has taken off the shell 1 of gas and has been put into hot isostatic pressing stove that carry out heat etc. quiet using tooling bucket
Pressure sintering is sintered warm 920 DEG C of temperature；Pressure 140Mpa, heat-insulation pressure keeping 2 hours.
6th step, checking machine fabricated product：The shell 1 completed is sintered into line density and size detection.Then blanking, directly
Remove interior jacket 2, according to dimensioned machine barrel outer wall and endoporus, obtains the direct coating comminutor machine barrel of the utility model.
As shown in figure 3, direct coating comminutor machine barrel provided by the utility model includes two layers, machine barrel cylinder, that is, shell layer
7 and alloy-layer 8, the alloy-layer 8 selects high abrasion, corrosion resistant nickel-base alloy or cobalt-base alloys, or addition different weight
The alloy of ratio reinforced phase (including WC/TiC/TiN) is 5~10 times of current machine barrel service life.
Claims (1)
1. a kind of direct coating comminutor machine barrel based on heat and other static pressuring processes, it is characterised in that：The direct coating comminutor
Machine barrel outer wall is shell layer, and inner wall is the alloy-layer that HIP sintering obtains, and the alloy layer material is nickel-base alloy, Gao Fan
Tool steel or cobalt-base alloys, or add the above-mentioned alloy of reinforced phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820149260.9U CN207789689U (en) | 2018-01-29 | 2018-01-29 | A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820149260.9U CN207789689U (en) | 2018-01-29 | 2018-01-29 | A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes |
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| Publication Number | Publication Date |
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| CN207789689U true CN207789689U (en) | 2018-08-31 |
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ID=63269352
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| CN201820149260.9U Expired - Fee Related CN207789689U (en) | 2018-01-29 | 2018-01-29 | A kind of direct coating comminutor machine barrel based on heat and other static pressuring processes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284227A (en) * | 2018-01-29 | 2018-07-17 | 北京汇越新材料科技有限公司 | A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes |
| CN111715883A (en) * | 2019-03-21 | 2020-09-29 | 南京科亚化工成套装备有限公司 | Preparation method of extruder barrel |
| CN114309618A (en) * | 2021-03-22 | 2022-04-12 | 武汉钜能科技有限责任公司 | Barrel |
-
2018
- 2018-01-29 CN CN201820149260.9U patent/CN207789689U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284227A (en) * | 2018-01-29 | 2018-07-17 | 北京汇越新材料科技有限公司 | A kind of preparation method of the direct coating comminutor machine barrel based on heat and other static pressuring processes |
| CN111715883A (en) * | 2019-03-21 | 2020-09-29 | 南京科亚化工成套装备有限公司 | Preparation method of extruder barrel |
| CN114309618A (en) * | 2021-03-22 | 2022-04-12 | 武汉钜能科技有限责任公司 | Barrel |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20210129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |