CN202746794U - Composite type wear-resistant tube - Google Patents
Composite type wear-resistant tube Download PDFInfo
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- CN202746794U CN202746794U CN2012202628011U CN201220262801U CN202746794U CN 202746794 U CN202746794 U CN 202746794U CN 2012202628011 U CN2012202628011 U CN 2012202628011U CN 201220262801 U CN201220262801 U CN 201220262801U CN 202746794 U CN202746794 U CN 202746794U
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Abstract
The utility model relates to a composite type wear-resistant tube, which comprises a steel tube and an overlaying layer, wherein the steel tube is a round tube of which the diameter is more than or equal to 50mm, and the overlaying layer is made of hard material, is manufactured in an overlaying mode, is arranged on the inner wall of the steel tube and is subjected to metallurgical bonding with the steel tube. Therefore, the micro-hardness of the overlaying layer manufactured with the overlaying method is HV(Vickers-hardness) 1700-2000, the surface hardness is HRA (Rockwell hardness) 58-62, the abrasion resistance of the overlaying layer is obviously improved in comparison with that of other types of materials, a great quantity of steel material resources can be saved, the service life of equipment is prolonged, the use efficiency of equipment is improved, meanwhile, the maintenance cost is lowered, the halt time is shortened, the equipment running rate is improved, and the phenomenon that the environment is polluted and the cost of a material cleaning worker is increased due to abrasion, damage and blanking is lowered. In addition, a product seriation can be formed because of various specification varieties, the size standard is same with the national standard, and the applicable range is wide.
Description
Technical field
The utility model belongs to the conveyance conduit technical field, particularly a kind of combined type wear-resistant pipe.
Background technique
At present, the conveyance conduit on the market, as in the mine, the closed Wearproof transfer piping made of the industry such as cement, building, thermoelectricity, environmental protection, generally adopt three kinds of modes to resistance to wear:
The first is the steel pipe that adopts the wear-resisting steel such as 16Mn to produce, although adopt the steel pipe of wear-resistant material eager to excel in whatever one does than Ordinary Steel wear-resisting property, because its micro-hardness and poor chemical stability, so the present technology that is eliminated that substantially belonged to;
The second is that inwall pastes antiwear ceramic sheets, and the mode labor intensity that inwall pastes ceramics is large, and ceramics not antidetonation, easily come off, the ceramics that comes off is easily to other equipment injuries, and can't carry out the paster operation for small-bore pipeline;
The third is whole centrifugal pressure casting, because the melting temperature restriction, its wear-resisting property is also undesirable, and the making energy consumption is also large, is unfavorable for environmental requirement.
The model utility content
Be to solve the above-mentioned problems in the prior art, the utility model provide a kind of simple in structure, surface hardness is high, the combined type wear-resistant pipe of wear-resistant, corrosion resistant long service life.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of combined type wear-resistant pipe includes steel pipe and overlay cladding, and described overlay cladding is located on the inwall of described steel pipe, and mutual metallurgy combination.
As a preferred version of the present utility model, described overlay cladding is to adopt hard material and be made by the built-up welding mode.
As a preferred version of the present utility model, the micro-hardness of described overlay cladding is HV1700～2000, and surface hardness is HRA58～62.
As a preferred version of the present utility model, the cross section of described steel pipe is rectangle, square or circular.
As a preferred version of the present utility model, the diameter of described steel pipe is more than or equal to 50mm.
The beneficial effects of the utility model are:
The utility model passes through technique scheme; wear resistance is compared the other types material and is significantly increased; saved the great deal of steel resource; prolonged service life of equipment; improve the utilization efficiency of equipment, reduced simultaneously maintenance cost, reduced dead time; improve operation rate, also reduce the damaged blanking of abrasion and the cost of labor of befouling environment and the clear material of increase.
In addition, but this combined type wear-resistant pipe diameter more than or equal to be made in the 50mm scope circle, rectangle, square, etc. various shape, specification is wide in variety, has formed the commodity seriation, dimensional standard and NBS are as good as, and be applied widely.
Description of drawings
Fig. 1 is the structural representation of the described a kind of combined type wear-resistant pipe of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Referring to Fig. 1, the described a kind of combined type wear-resistant pipe of the utility model embodiment includes steel pipe 1 and overlay cladding 2, wherein, described steel pipe 1 is a pipe, and its cross section is circular (certainly also can be the cross section is rectangle or square steel pipe), and the diameter of steel pipe 1 is more than or equal to 50mm; Described overlay cladding 2 adopts hard material and is made by the built-up welding mode, is arranged on the inwall of described steel pipe 1, and mutual metallurgy combination; Concrete weld deposit process is: at first steel pipe 1 is lain in a horizontal plane on the special-purpose welding rotary carrier roller, then will use the miniature open arc welding surfacing torch head of the long-range wire feed technology of flux cored wire to send into steel pipe 1 appointment welding starting point, begin at last welding, meanwhile, microcomputerized control rotary carrier roller and wire feeding machine, wire feeding machine driver synchronization motion are until use flux cored wire to finish inner tube wall open arc built-up welding work.
Like this, the micro-hardness of the described overlay cladding 2 that is made through this overlaying method is for reaching HV1700～2000, surface hardness is HRA58～62, wear resistance is compared the other types material and is significantly increased, to exceed more than 5 times than present industrial field low-end product (such as high manganese steel, wear resistance castings etc.), saved the great deal of steel resource, prolonged service life of equipment, improved the utilization efficiency of equipment, reduce simultaneously maintenance cost, reduce dead time, improve operation rate, also reduce the damaged blanking of abrasion and the cost of labor of befouling environment and the clear material of increase; In addition, but this combined type wear-resistant pipe diameter more than or equal to be made in the 50mm scope circle, rectangle, square, etc. various shape, specification is wide in variety, can form the commodity seriation, dimensional standard and NBS are as good as, and be applied widely.
The above is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (5)
1. combined type wear-resistant pipe, it is characterized in that: include steel pipe (1) and overlay cladding (2), described overlay cladding (2) is located on the inwall of described steel pipe (1), and mutual metallurgy combination.
2. combined type wear-resistant pipe according to claim 1 is characterized in that: described overlay cladding (2) is to adopt hard material and be made by the built-up welding mode.
3. combined type wear-resistant pipe according to claim 2, it is characterized in that: the micro-hardness of described overlay cladding (2) is HV1700～2000, surface hardness is HRA58～62.
4. any one described combined type wear-resistant pipe in 3 according to claim 1, it is characterized in that: the cross section of described steel pipe (1) is rectangle, square or circular.
5. combined type wear-resistant pipe according to claim 4, it is characterized in that: the diameter of described steel pipe (1) is more than or equal to 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202628011U CN202746794U (en) | 2012-06-06 | 2012-06-06 | Composite type wear-resistant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202628011U CN202746794U (en) | 2012-06-06 | 2012-06-06 | Composite type wear-resistant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746794U true CN202746794U (en) | 2013-02-20 |
Family
ID=47706193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202628011U Expired - Fee Related CN202746794U (en) | 2012-06-06 | 2012-06-06 | Composite type wear-resistant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347126A (en) * | 2020-03-04 | 2020-06-30 | 济南重工股份有限公司 | Mill chute and processing technology thereof |
-
2012
- 2012-06-06 CN CN2012202628011U patent/CN202746794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347126A (en) * | 2020-03-04 | 2020-06-30 | 济南重工股份有限公司 | Mill chute and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |