CN206746715U - Wear-resisting composite liner - Google Patents
Wear-resisting composite liner Download PDFInfo
- Publication number
- CN206746715U CN206746715U CN201720566252.XU CN201720566252U CN206746715U CN 206746715 U CN206746715 U CN 206746715U CN 201720566252 U CN201720566252 U CN 201720566252U CN 206746715 U CN206746715 U CN 206746715U
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- CN
- China
- Prior art keywords
- mold insert
- wear
- main body
- prefabricated mold
- wearing coat
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Abstract
Wear-resisting composite liner, it is related to liner plate manufacture field.Including high chrome lining main body and ceramic wearing coat, prefabricated mold insert is provided with the ceramic wearing coat, the prefabricated mold insert is provided with screwed hole, the high chrome lining main body is provided with the connecting hole consistent with screw thread centerline hole, the high chrome lining main body is connected with prefabricated mold insert by dormant bolt, and the dormant bolt is located in connecting hole and screwed hole.Wear-resisting composite liner separates ceramic wearing coat and high chrome lining main body, is connected by dormant bolt, easy disassembly, replacing；Ceramic wearing coat is directly changed after abrasion, operation and maintenance cost is relatively low.Ceramic wearing coat, by setting prefabricated mold insert in die cavity, fills wear-resistant ceramic particle and Ti powder in preparation process, then pours into molten iron shaping, and technique is simple and convenient, wear-resisting, reliable, improves service life.
Description
Technical field
It the utility model is related to liner plate manufacture field, more particularly to a kind of wear-resisting composite liner.
Background technology
In industries such as electric power, cement, metallurgy, mines, largely using abrasion-proof backing block, as the main wearing piece of coal pulverizer,
Its anti-wear performance directly influences the production efficiency and operation cost of coal pulverizer.The current research ratio for abrasion-proof backing block both at home and abroad
It is more, there is integral casting forming, have and continue to make after using prefabricated component produced by insert molding, also having on worn-out casting built-up welding again
.Integral casting forming cost is very high, and the anti-wear performance of casting is not ideal enough, and service life is limited.Using prefabricated wear-resisting
What ceramic block was poured into a mould, complex procedures, often cause in wear process because of first being worn to the metal being connected with ceramics
The phenomenon that ceramic block bursts apart, and need entirety to scrap after ceramic wearing coat abrasion, use cost is higher.Using the side of secondary built-up welding
Although method can save some costs, overlay cladding easily comes off when running into the poor working environment of ature of coal.Production maintenance and make
It is relatively high with cost.
Utility model content
The utility model is directed to problem above, there is provided the convenient processing of one kind, saves cost, dismounting is reliable wear-resisting compound
Liner plate.
The technical solution of the utility model is：Including high chrome lining main body and ceramic wearing coat, in the ceramic wearing coat
Provided with prefabricated mold insert, the prefabricated mold insert is provided with screwed hole, and the high chrome lining main body is provided with and screw thread centerline hole one
The connecting hole of cause, the high chrome lining main body are connected with prefabricated mold insert by dormant bolt, and the dormant bolt is located at connecting hole
In screwed hole.
The prefabricated mold insert is up-small and down-big stepped cylinder body, the bottom surface of the prefabricated mold insert and ceramic wearing coat
Bottom surface is concordant.
The bottom of the prefabricated mold insert is provided with some embedding bars, and the embedding bar stretches out the bottom surface of ceramic wearing coat, the Gao Ge
The top surface of liner plate main body is provided with some caulking grooves, and the embedding bar is corresponded with caulking groove, and the embedding bar is adaptedly located in caulking groove.
The prefabricated mold insert has at least two.
The beneficial effects of the utility model are：Wear-resisting composite liner separates ceramic wearing coat and high chrome lining main body, leads to
Cross dormant bolt connection, easy disassembly, replacing；Ceramic wearing coat is directly changed after abrasion, operation and maintenance cost is relatively low.
Ceramic wearing coat, by setting prefabricated mold insert in die cavity, fills wear-resistant ceramic particle and Ti powder, then pour into preparation process
Molten iron is molded, and technique is simple and convenient, wear-resisting, reliable, improves service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of optimal enforcement mode of the present utility model；
1 is high chrome lining main body in figure, and 2 be ceramic wearing coat, and 20 be wear-resistant ceramic particle, and 3 be prefabricated mold insert, and 4 be heavy
Hook bolt, 5 be embedding bar.
Embodiment
Term used in the utility model, unless otherwise specified, typically there is ordinary skill people
The implication that member is generally understood that.With reference to specific embodiment, the utility model is described in further detail.It should be understood that these realities
Example the utility model solely for the purpose of illustration is applied, rather than limits the scope of the utility model in any way.In following reality
Apply in example, the various processes and method not being described in detail are conventional methods as known in the art.
The utility model as shown in Figure 1-2, including high chrome lining main body 1 and ceramic wearing coat 2, in the ceramic wearing coat
Provided with prefabricated mold insert 3, the prefabricated mold insert is provided with screwed hole, and the high chrome lining main body is provided with and screw thread centerline hole one
The connecting hole of cause, the high chrome lining main body and prefabricated mold insert are connected by dormant bolt 4, and the dormant bolt is located at connecting hole
In screwed hole.
The prefabricated mold insert 3 is up-small and down-big stepped cylinder body, the bottom surface of the prefabricated mold insert and ceramic wearing coat
Bottom surface it is concordant, be easy to be bonded high chrome lining main body so that prefabricated mold insert is connected reliably with high chrome lining main body.
The bottom of the prefabricated mold insert 3 is provided with some embedding bars 5, and the embedding bar stretches out the bottom surface of ceramic wearing coat, the height
The top surface of chrome lining main body is provided with some caulking grooves, and the embedding bar is corresponded with caulking groove, and the embedding bar is adaptedly located in caulking groove；
On the one hand, for reliable location；On the other hand, both tightness are improved；Embedding bar can be set to cone, improve tightness.
The prefabricated mold insert 3 has at least two, and dormant bolt is identical with the quantity of prefabricated mold insert, improves high chrome lining master
The reliability that body connects with ceramic wearing coat.
Opposite face between the high chrome lining main body 1 and ceramic wearing coat 2 is also connected by embedded structure, embedded structure
For：Sawtooth is respectively equipped with high chrome lining main body 1 and the opposite face of ceramic wearing coat 2, is fitted together to by sawtooth, tightness is improved, keeps away
Exempt from both to misplace.
A kind of preparation method of wear-resisting composite liner, has following examples：
Embodiment 1
1）Using phenolic sand molding, prefabricated mold insert 3 is placed as needed inside die cavity, mold insert material is 45 steel, with side
It is easy to later stage drilling screwed hole；2）From particle diameter 18mm wear-resistant ceramic particle 20,0.5wt%Ti powder is added, is uniformly laid on
Inside sand mold die cavity, until filling up whole die cavity；3）Sand mold is preheated to 250 DEG C, molten iron is heated to 1480 DEG C and poured into a mould；4）
After sand removal polishing, ceramic wearing coat is heat-treated, Technology for Heating Processing is at 800 DEG C of temperature, is incubated 2h；Air cooling processing；
At 200 DEG C of temperature, 3h is incubated；Air cooling is handled again；5）The drilling thread mill drilling on prefabricated mold insert；6）In high chrome lining main body
Reserved connecting hole； 7）High chrome lining main body is connected with ceramic wearing coat using dormant bolt；8）Complete.
Prefabricated mold insert 3 is up-small and down-big stepped cylinder body, improves the contact surface of prefabricated mold insert and wear-resistant ceramic particle
Product, improve the tightness of both connections.
Molten iron is that C content is 2.0-3.3wt%, and Cr contents are 18-23 wt% wear resistant cast irons.After ceramic wearing coat heat treatment
Hardness is HRC55-60.Temperature after air cooling processing is 15-30 DEG C.
Wear-resistant ceramic particle such as corundum, Ti powder is added, improve bonding strength, meanwhile, improve the wearability of ceramic wearing coat.
Polishing machine contrast is carried out to the composite liner after heat treatment and common liner plate using emery wheel, found in uniform pressure
（15kg）Lower 30min abrasions, the wear extent of composite liner is only the 33% of common wear liner amount.
Embodiment 2
1）Using phenolic sand molding, prefabricated mold insert 3 is placed as needed inside die cavity, mold insert material is 45 steel, with side
It is easy to later stage drilling screwed hole；2）From particle diameter 20mm wear-resistant ceramic particle 20,0.8wt%Ti powder is added, is uniformly laid on
Inside sand mold die cavity, until filling up whole die cavity；3）Sand mold is preheated to 275 DEG C, molten iron is heated to 1505 DEG C and poured into a mould；4）
After sand removal polishing, ceramic wearing coat is heat-treated, Technology for Heating Processing is at 900 DEG C of temperature, is incubated 3h；Air cooling processing；
At 220 DEG C of temperature, 4h is incubated；Air cooling is handled again；5）The drilling thread mill drilling on prefabricated mold insert；6）In high chrome lining main body
Reserved connecting hole；7）High chrome lining main body is connected with ceramic wearing coat using dormant bolt；8）Complete.
Molten iron is that C content is 2.0-3.3wt%, and Cr contents are 18-23 wt% wear resistant cast irons.After ceramic wearing coat heat treatment
Hardness is HRC55-60.Temperature after air cooling processing is 15-30 DEG C.
Polishing machine contrast is carried out to the composite liner after heat treatment and common liner plate using emery wheel, found in uniform pressure
（15kg）Lower 30min abrasions, the wear extent of composite liner is only the 35% of common wear liner amount.
Embodiment 3
Using phenolic sand molding, prefabricated mold insert with flange is placed as needed inside die cavity（1.2）, mold insert material
For 45 steel, to be convenient to later stage drilling screwed hole；2）From particle diameter 25mm wear-resistant ceramic particle 20,1wt%Ti powder is added,
Even is laid on inside sand mold die cavity, until filling up whole die cavity；3）Sand mold is preheated to 300 DEG C, molten iron is heated to 1530 DEG C
Poured into a mould；4）After sand removal polishing, ceramic wearing coat is heat-treated, Technology for Heating Processing is the insulation at 1000 DEG C of temperature
4h；Air cooling processing；At 250 DEG C of temperature, 5h is incubated；Air cooling is handled again；5）The drilling thread mill drilling on prefabricated mold insert；6）It is high
Connecting hole is reserved in chrome lining main body；7）High chrome lining main body is connected with ceramic wearing coat using dormant bolt；8）Complete.
Molten iron is that C content is 2.0-3.3wt%, and Cr contents are 18-23 wt% (i.e. mass percent) wear resistant cast iron.Ceramics
Hardness is HRC55-60 after wearing layer heat treatment.Temperature after air cooling processing is 15-30 DEG C.
Polishing machine contrast is carried out to the composite liner after heat treatment and common liner plate using emery wheel, found in uniform pressure
（15kg）Lower 30min abrasions, the wear extent of composite liner is only the 30% of common wear liner amount.
Claims (4)
1. wear-resisting composite liner, it is characterised in that：Including high chrome lining main body and ceramic wearing coat, set in the ceramic wearing coat
There is prefabricated mold insert, the prefabricated mold insert is provided with screwed hole, and the high chrome lining main body is provided with consistent with screw thread centerline hole
Connecting hole, the high chrome lining main body connected with prefabricated mold insert by dormant bolt, the dormant bolt be located at connecting hole and
In screwed hole.
2. wear-resisting composite liner according to claim 1, it is characterised in that：The prefabricated mold insert is up-small and down-big ladder
Shape cylinder, the bottom surface of the prefabricated mold insert are concordant with the bottom surface of ceramic wearing coat.
3. wear-resisting composite liner according to claim 2, it is characterised in that：The bottom of the prefabricated mold insert is provided with some embedding
Bar, the embedding bar stretch out the bottom surface of ceramic wearing coat, and the top surface of the high chrome lining main body is provided with some caulking grooves, the embedding bar and
Caulking groove is corresponded, and the embedding bar is adaptedly located in caulking groove.
4. wear-resisting composite liner according to claim 1, it is characterised in that：The prefabricated mold insert has at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566252.XU CN206746715U (en) | 2017-05-19 | 2017-05-19 | Wear-resisting composite liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566252.XU CN206746715U (en) | 2017-05-19 | 2017-05-19 | Wear-resisting composite liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206746715U true CN206746715U (en) | 2017-12-15 |
Family
ID=60619558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720566252.XU Expired - Fee Related CN206746715U (en) | 2017-05-19 | 2017-05-19 | Wear-resisting composite liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206746715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138241A (en) * | 2017-05-19 | 2017-09-08 | 扬州电力设备修造厂有限公司 | A kind of wear-resisting composite liner and preparation method thereof |
| CN108502558A (en) * | 2018-03-12 | 2018-09-07 | 余博 | A kind of boxlike anti compact wear resistant ceramic lining board and preparation method thereof |
-
2017
- 2017-05-19 CN CN201720566252.XU patent/CN206746715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138241A (en) * | 2017-05-19 | 2017-09-08 | 扬州电力设备修造厂有限公司 | A kind of wear-resisting composite liner and preparation method thereof |
| CN108502558A (en) * | 2018-03-12 | 2018-09-07 | 余博 | A kind of boxlike anti compact wear resistant ceramic lining board and preparation method thereof |
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| 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: 20171215 Termination date: 20200519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |