CN207188766U - A kind of composite wear-resistant block - Google Patents
A kind of composite wear-resistant block Download PDFInfo
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- CN207188766U CN207188766U CN201720968566.2U CN201720968566U CN207188766U CN 207188766 U CN207188766 U CN 207188766U CN 201720968566 U CN201720968566 U CN 201720968566U CN 207188766 U CN207188766 U CN 207188766U
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- wear
- cast iron
- steel ring
- block
- resistant
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Abstract
The utility model discloses a kind of composite wear-resistant block, including wear resistant cast iron block, it is characterised in that：The periphery of at least partly described wear resistant cast iron block is caved inward by neighboring forms recess, and steel ring is embedded with by way of casting and pouring in the recess.Composite wear-resistant block is formed by being embedded in steel ring on the periphery of wear resistant cast iron block, wear-resisting and welding requirement can be had concurrently；Wear resistant cast iron block and steel ring are formed by casting and pouring, metallurgical and mechanical bond simultaneously on the combination inclined-plane of wear resistant cast iron and steel ring be present, can make it that both connections are more firm, avoid coming off, and anti-wear performance is good；Composite wear-resistant block one-time cast-forming, it is not necessary to which the plane machining of ironcasting and steel plate, copper foil solder and vacuum brazing, process costs are low, safe and reliable.
Description
Technical field
It the utility model is related to composite wear-resistant block.
Background technology
Industrially, as often needed to use high-abrasive material on broken, screening, carrying, storage or conveying equipment, with extension device
Service life.For example, the front portion of bucket, in order to protect the service life of bucket and wear-resistant degree, often sets in the position
One piece of wear-resistant block in flute length bar shaped is put, to realize the effect of effectively protecting bucket.
Abrasion can cause significant wastage and the consumption of material and the energy, research and develop abrasion resistance material and its prepare skill
Art is paid much attention to by domestic and international investigation of materials person.Rich chromium cast iron is as excellent high-abrasive material in metallurgical, mine and machinery
It is used widely Deng field.It is easy to crack because the welding performance of rich chromium cast iron is poor, it strongly limit its application.
The currently used composite wear-resistant block to be prepared with vacuum brazing technique, referring to Fig. 1, top is wear resistant cast iron
Layer 1 ', bottom is ordinary carbon steel layer 2 ', can be by the part of the ordinary carbon steel layer of composite wear-resistant block and needs by welding procedure
Weld together, improve the wearability of part.
This composite wear-resistant block prepared with vacuum brazing technique, it is necessary first to prepare top wear resistant cast iron with pouring technology
Layer casting, and the brazing surface of casting is carried out to the plane machining of degree of precision；Then by the pricker of the bottom ordinary carbon steel layer of preparation
The face of weld also carries out the plane machining of degree of precision；Add one layer of copper between the brazing surface of casting and the brazing surface of ordinary carbon steel layer again
Paper tinsel is welded together wear resistant cast iron layer casting and ordinary carbon steel by vacuum brazing technique as solder.
It is high to equipment requirement but above-mentioned this preparation technology has complex procedures, the problem of production cost is high, and
Composite wear-resistant block bond strength prepared by copper brazing is relatively low, easily overall during use to come off.
Utility model content
Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of improve
Connection reliability, the composite wear-resistant block for reducing cost.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of composite wear-resistant block, including it is wear-resisting
Casting pig, it is characterised in that：The periphery of at least partly described wear resistant cast iron block is caved inward by neighboring forms recess, described
Steel ring is embedded with by way of casting and pouring in recess.
Preferably, to cause wear resistant cast iron block and steel ring that there is good mechanical connection and metallurgical binding, the wear-resisting casting
Iron block has relative first end and the second end, and the recess extends a certain distance, the steel ring from the second end to first end
Inner ring vertical plane from the first end of wear resistant cast iron block to the second end, gradually slope inwardly form inclined-plane, the shape of the recess
It is adapted to inclined-plane.
According to one side of the present utility model, the whole inner ring vertical plane of the steel ring is processed into inclined-plane.
According to other side of the present utility model, the part of the inner ring vertical plane of the steel ring in the circumferential is processed into tiltedly
Face.
It is welded and fixed for ease of composite wear-resistant block and external equipment, the height of the steel ring is more than 3mm more than 4mm, thickness.
Compared with prior art, the utility model has the advantage of：By being embedded in steel ring structure on the periphery of wear resistant cast iron block
Into composite wear-resistant block, wear-resisting and welding requirement can be had concurrently；Wear resistant cast iron block and steel ring are formed by casting and pouring, steel ring
Weight is few, and weight of molten iron is more than 10 with steel ring weight ratio, and pouring molten iron temperature is high, makes to have on the faying face of molten iron and steel ring
Enough heats carry out the diffusion of carbon atom and other alloying element atoms, form metallurgical binding, therefore in wear resistant cast iron and steel
Metallurgical and mechanical bond on the combination inclined-plane of circle simultaneously be present, can make it that both connections are more firm, avoid coming off；And due to
Above-mentioned weight is higher than causing the ratio of wear resistant cast iron layer, therefore anti-wear performance is more preferable；Composite wear-resistant block one-time cast-forming,
Plane machining, copper foil solder and the vacuum brazing of ironcasting and steel plate are not needed, process costs are low (declining about 50%), use peace
It is complete reliable.
Brief description of the drawings
Fig. 1 is the schematic diagram of the wear-resistant block of prior art；
Fig. 2 is the schematic cross-section of one embodiment of composite wear-resistant block of the present utility model；
Fig. 3 is the schematic cross-section of second embodiment of composite wear-resistant block of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
Referring to Fig. 2, a kind of composite wear-resistant block, including wear resistant cast iron block 1, wear resistant cast iron block 1 are the bar with certain altitude
Shape.In the short transverse of the wear resistant cast iron block 1, at least partly caved inward by neighboring and form recess 11, in the recess 11
Steel ring 2 is embedded with, the periphery of steel ring 2 can flush with the periphery of the remainder of wear resistant cast iron block 1.Wear resistant cast iron block 1 and steel
2 casting and pourings are enclosed to be combined.Steel ring 2 is used to weld with external equipment.
In the present embodiment, the specific composition of wear resistant cast iron block 1 can be：C 3.1wt.%, Cr 15.4wt.%, Si
0.65wt.%, Mn 0.73wt.%, Mo 1.65wt.%, Cu 0.33wt.%, S 0.033wt.%, P 0.028wt.%, it is remaining
Measure as Fe.
Wear resistant cast iron block 1 has the relative end 13 of first end 12 and second in short transverse, in the present embodiment, recess
11 extend a certain distance from the second end 13 to first end 12, and and not through first end 12.In order that obtain the He of wear resistant cast iron block 1
Connection between steel ring 2 is more firm, avoids coming off during use, and the inner ring vertical plane of steel ring 2 is from the of wear resistant cast iron block 1
One end 12 is to the second end 13, gradually sloping inwardly forms inclined-plane 21, that is to say, that wear resistant cast iron block 1 is smaller by the thickness of steel ring 2
First end 22 extend to the direction at the second larger end 23 of the thickness of steel ring 2 and exceed the second end 23 of steel ring 2.Recess 11
Shape is adapted to inclined-plane 21, thus be may be such that and is formed mechanical bond between wear resistant cast iron block 1 and steel ring 2.In the present embodiment, steel
The whole inner ring vertical plane of circle 2 is processed into inclined-plane 21.Preferably, the height of steel ring 2 is more than 4mm, and thickness is more than 3mm, so as to
Meets the needs of welding with external equipment.
The manufacture method of above-mentioned composite wear-resistant block comprises the following steps：
1) satisfactory, such as the whole circle of the inner ring vertical plane for the steel ring 2 that 6mm is thick, 10mm is high by Milling Process into oblique
Face 21, and cause the second end 23 that steel ring 2 forms first end 22 in the axial direction and thickness is more than first end 22；
2) by sand casting process moulding and running and feeding system is set, places what is processed in the die cavity of running and feeding system
Steel ring 2 and mould assembling, the first end 22 of steel ring 2 should abut with cavity wall；
3) by wear resistant cast iron, preferably high-chromium white cast iron, being heated to 1400~1600 DEG C turns into molten iron, preferably
1500 DEG C, molten iron is poured into and is provided with the running and feeding system of steel ring 2, make molten iron enough with having on the faying face of steel ring 2
Heat carries out the diffusion of carbon atom and other alloying element atoms, forms metallurgical binding, metallurgical binding, which refers to, has carbon on faying face
The diffusion of atom and other alloying element atoms, weight of molten iron are more than 10, preferably 14 with the weight ratio of steel ring 2；Molten steel solidification,
The wear resistant cast iron block 1 combined with steel ring 2 is obtained after cooling, and thus obtains initial composite wear-resistant block, thus wear resistant cast iron block 1 with
Mechanical connection and metallurgical binding between steel ring 2 simultaneously be present, connection is more firm；
4) the original composite wear-resistant block being prepared is subjected to corresponding different works according to the different of the material of wear resistant cast iron block 1
The heat treatment of skill, such as it is placed in heating furnace and is warming up to 960 DEG C, is incubated 90min, comes out of the stove air-cooled to room temperature treatment, finally carry out low
Warm temper, obtain final composite wear-resistant block.
The high chromium cast iron layer hardness for the composite wear-resistant block being prepared by the above method reaches 65.5HRC.
Embodiment two
Referring to Fig. 3, in the present embodiment, it is with the difference of above-described embodiment one, the inner ring of steel ring 2 is facial vertically
Divide and be processed into inclined-plane 21.
The manufacture method of above-mentioned composite wear-resistant block comprises the following steps：
1) satisfactory, as 6mm is thick, 10mm is high steel ring 2 inner ring vertical plane part by Milling Process into oblique
Face 21, inner ring vertical plane part herein refers to part in the circumferential, and causes steel ring 2 to form the He of first end 22 in the axial direction
Thickness is more than the second end 23 of first end 22；
2) by sand casting process moulding and running and feeding system is set, places what is processed in the die cavity of running and feeding system
Steel ring 2 and mould assembling, the first end 22 of steel ring 2 should abut with the wall of die cavity；
3) by wear resistant cast iron, preferably high-chromium white cast iron, being heated to 1400~1600 DEG C turns into molten iron, preferably
1500 DEG C, molten iron is poured into and is provided with the running and feeding system of steel ring 2, make molten iron enough with having on the faying face of steel ring 2
Heat carries out the diffusion of carbon atom and other alloying element atoms, forms metallurgical binding, metallurgical binding, which refers to, has carbon on faying face
The diffusion of atom and other alloying element atoms, weight of molten iron are more than 10, preferably 11 with the weight ratio of steel ring 2；Molten steel solidification,
The wear resistant cast iron block 1 combined with steel ring 2 is obtained after cooling, and thus obtains initial composite wear-resistant block, thus wear resistant cast iron block 1 with
Mechanical connection and metallurgical binding between steel ring 2 simultaneously be present, connection is more firm；
4) the initial composite wear-resistant block being prepared is subjected to corresponding different works according to the different of the material of wear resistant cast iron block 1
The heat treatment of skill, such as it is placed in heating furnace and is warming up to 960 DEG C, is incubated 90min, comes out of the stove air-cooled to room temperature treatment, finally carry out low
Warm temper, obtain final composite wear-resistant block.
The high chromium cast iron layer hardness for the composite wear-resistant block being prepared by the above method reaches 65HRC.
Claims (5)
1. a kind of composite wear-resistant block, including wear resistant cast iron block (1), it is characterised in that：At least partly described wear resistant cast iron block (1)
Periphery is caved inward by neighboring forms recess (11), and steel ring is embedded with by way of casting and pouring in the recess (11)
(2)。
2. composite wear-resistant block according to claim 1, it is characterised in that：The wear resistant cast iron block (1) has relative the
One end (12) and the second end (13), the recess (11) extends a certain distance from the second end (13) to first end (12), described
The inner ring vertical plane of steel ring (2) is from the first end (12) of wear resistant cast iron block (1) to the second end (13), gradually sloping inwardly forms tiltedly
Face (21), the shape of the recess (11) are adapted to inclined-plane (21).
3. composite wear-resistant block according to claim 2, it is characterised in that：The whole inner ring vertical plane of the steel ring (2) is equal
It is processed into inclined-plane (21).
4. composite wear-resistant block according to claim 2, it is characterised in that：The inner ring vertical plane of the steel ring (2) is in circumference
On part be processed into inclined-plane (21).
5. according to composite wear-resistant block according to any one of claims 1 to 4, it is characterised in that：The height of the steel ring (2) is big
It is more than 3mm in 4mm, thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720968566.2U CN207188766U (en) | 2017-08-04 | 2017-08-04 | A kind of composite wear-resistant block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720968566.2U CN207188766U (en) | 2017-08-04 | 2017-08-04 | A kind of composite wear-resistant block |
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| Publication Number | Publication Date |
|---|---|
| CN207188766U true CN207188766U (en) | 2018-04-06 |
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ID=61796038
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| CN201720968566.2U Active CN207188766U (en) | 2017-08-04 | 2017-08-04 | A kind of composite wear-resistant block |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382499A (en) * | 2017-08-04 | 2019-02-26 | 宁波禾顺新材料有限公司 | A kind of composite wear-resistant block and manufacturing method |
| CN113523243A (en) * | 2021-07-09 | 2021-10-22 | 邯郸慧桥复合材料科技有限公司 | Solid-liquid composite casting method for bent plate-shaped bimetal wear-resistant part |
| CN114850452A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气集团有限公司 | Method for manufacturing wear-resistant workpiece |
-
2017
- 2017-08-04 CN CN201720968566.2U patent/CN207188766U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382499A (en) * | 2017-08-04 | 2019-02-26 | 宁波禾顺新材料有限公司 | A kind of composite wear-resistant block and manufacturing method |
| CN114850452A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气集团有限公司 | Method for manufacturing wear-resistant workpiece |
| CN113523243A (en) * | 2021-07-09 | 2021-10-22 | 邯郸慧桥复合材料科技有限公司 | Solid-liquid composite casting method for bent plate-shaped bimetal wear-resistant part |
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