CN1103933A - Abrasive resistance sand pump sleeve and the mfg. method - Google Patents
Abrasive resistance sand pump sleeve and the mfg. method Download PDFInfo
- Publication number
- CN1103933A CN1103933A CN 94108074 CN94108074A CN1103933A CN 1103933 A CN1103933 A CN 1103933A CN 94108074 CN94108074 CN 94108074 CN 94108074 A CN94108074 A CN 94108074A CN 1103933 A CN1103933 A CN 1103933A
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- CN
- China
- Prior art keywords
- sand pump
- natural rubber
- cast iron
- sand
- ceramic plate
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Abstract
The invention is related to tri-compound material used for wear-proof layer of sand pump, which is mfd. through coating a mixture of natural rubber and binder SY28, and ceramic pieces on the internal wall of cast iron pump body, compressing a mould into the pump body, and being vulcanized in a vulcanizer under 120-150 deg.C for 1-3 hours.
Description
What the present invention relates to is the abrasive resistance sand pump field, is specially adapted to the sheath that adopts composite material to produce.
Sand pump selects the important department of national economy such as factory, building materials, chemical industry, coal to use at metallurgical mine very extensive, and it is a key equipment of carrying the liquid medium that contains solid particle.Sheath is the main member of sand pump.
In the prior art, the material of the making sheath sheath liner rubber or polyurethane or engineering plastics or SiC or the interior imbedding hard alloy that wear resisting cast iron are arranged or make at plain cast iron or wear resisting cast iron; Also there be whole ni-hard cast iron or rich chromium cast iron or the whole nonmetallic ceramics silicon nitride that adopts of adopting to make sheath.Said method all has different defectives through the production practices check.For example: adopt rubber, polyurethane, engineering plastics to make the sheath of liner, broken the drawing of the very easy quilt of the slag that is sharp-pointed dihedral made the workpiece premature failure.For the sheath of liner SiC, though wear resistance increases,, be unable to bear the impact of large particle slag because SiC fragility is big, in use often occur breaking and cause liner to come off.It is cost height and complex process that imbedding hard alloy is made the liner shortcoming, thereby is difficult to grasp and promotes, use.Ni-hard cast iron contains the Ni height and is not suitable for the china natural resources situation.Whole silicon nitride sheath cost is expensive especially.In recent years, many producers adopt rich chromium cast iron to make wear-resisting sheath.This material uses under general working condition has effect preferably.But this material contains alloy amount height and heat treatment process complexity, and normal in process of production the generation split useless phenomenon, and product percent of pass is low.
The present invention seeks to propose that a kind of usability is good, the life-span is high, cost of production is low and simple abrasive resistance sand pump sleeve of technology and manufacture method.
Sand pump is made up of the member that backplate, impeller and sheath are called flow passage part.Backplate plays seal action, and the impeller of high speed rotating pumps mortar and be transported to distance to a declared goal.Mortar is made high speed rotary motion in the sheath runner.In this process, all flow passage parts all are subjected to abrasion in various degree, and sheath is the most serious.Purpose of the present invention is exactly to select the different materials with different advantages and to combine in the material of many production sheaths.And can improve sand pump sleeve working life and reduce production costs the manufacture method of the sand pump sleeve of simplification production technology.Below according to purpose of the present invention, and be described below in conjunction with the accompanying drawings, this accompanying drawing is the jacket structure schematic representation.Wherein 1 is sand pump sleeve plain cast iron material shell.2 is natural rubber.3 is Si
3N
4Pottery.The present invention's refer to is close in the full flow passage chamber after on the inwall work runner face of sand pump cast iron housing 1 one side of natural rubber being coated the SY28 Bond, and then with Si
3N
4Coat the SY28 Bond on the ceramic plate, be bonded on the another side of rubber.Make abrasive resistance sand pump become " cast iron housing-rubber layer-silicon nitride ceramics wearing layer " three compound sand pump sleeves.The present invention's three compound sand pump method for manufacturing protective sleeve are: plain cast iron is cast into sand pump cast iron housing 1 after fusing, then behind sand removal, polishing and cleaning runner, again natural rubber 2 is coated the SY28 Bond and be close on the full flow passage chamber inwall, and on another plane of natural rubber 2, be stained with the Si that has been coated with the SY28 binder
3N
4Ceramic plate 3.
At last one is pressed in the sand pump chamber than the sand pump sleeve chamber smaller loose tool of inner diameter, its effect is after interior inflation is exerted pressure, and makes loose tool to evenly swelling all around, can compress each abutting edge like this.The sulfuration process of the present invention's three complex abrasion-proof sand pump sleeves is: compound good sand pump sleeve device is put into vulcanizing oven, and sulfurize temperature is: 120 ℃～150 ℃, exerting pressure is 2～2.5Kg/mm
2, curing time is 1.5～2 hours.
The composition of the present invention's three complex abrasion-proof sand pumps is on sand pump cast iron housing 1 cavity wall in decentraction garden, is stained with natural rubber 2.Because the natural rubber after sulfuration can not only bonding securely sand pump cast iron housing and Si
3N
4Pottery 3 the more important thing is that having certain thickness rubber layer can play the slag slurry to sand pump buffering and damping effect.Therefore the thickness of the caoutchouc layer 2 in the present invention's three complex abrasion-proof sand pumps is 4～6mm.The Si that is glued at the sand pump inner flow passage
3N
4Stupalith 3 is Si
3N
4+ ZrO
2(ZrO
2Play toughening effect) form through high temperature sintering, this material has good wear resistance and corrosion resistance, and its relative density reaches more than 98%, so the Si in the present invention three complex abrasion-proof sand pump chambeies
3N
4Ceramic plate 3 its thickness are 8～12mm.It should be bonded on the opposite side plane of natural rubber 2.
The present invention's three complex abrasion-proof sand pump sleeves and adopt that manufacture method of the present invention has compared with prior art that the product wear-resisting property is good, the high life manufacturing process is easy, the manufacture method economic dispatch characteristics of product and product.Table 1 is that the present invention's three compound sand pumps contrast under a certain identical working condition with the working life and the abrasion condition of prior art products:
Table 1 different materials sheath use condition
Embodiment
Adopt manufacture method of the present invention, we have produced four " three is compound " sand pump sleeves altogether, at first will be cast into the sand pump shell behind the cast iron smelting, after the sand removal polishing and cleaning runner, natural rubber are bonded at pump chamber inwall, the Si that will sinter at last then again
3N
4The ceramic plate material is coated with the SY28 Bond, is bonded on the rubber wall in the sand pump chamber, loose tool is pressed into pressurising in the chamber again, and its concrete process parameter sees Table 2.The three compound sand pump sleeves that adopt the inventive method to produce are compared with present technical products and be the results are shown in Table 3.Can find out that according to above comparative result the three compound sand pump sleeves that adopt the inventive method to produce have characteristics such as wear-resisting property is good, and high life and production technology are simple.
Claims (2)
1, a kind of three complex abrasion-proof sand pump sleeves is characterized in that this abrasive resistance sand pump sleeve is to be stained with natural rubber (2) on sand pump cast iron housing (1) cavity wall in decentraction garden, is bonded with Si on the opposite side plane of natural rubber (2)
3N
4Ceramic plate (3).
2, a kind of manufacture method of complex abrasion-proof sand pump sleeve is that plain cast iron is cast into sand pump cast iron housing (1) after fusing, behind sand removal, polishing and cleaning runner, and compound again natural rubber (2) and the Si of going up
3N
4Ceramic plate (3) is characterized in that natural rubber (3) being coated the SY28 Bond and tightly being bonded on the full flow passage chamber inwall, and be stained with the Si that has been coated with the SY28 Bond on another plane of natural rubber (2)
3N
4Ceramic plate (3) is pressed into the sand pump loose tool in the sand pump chamber then, and plus-pressure is 2～3Kg/mm
2Can compress each abutting edge, again this sand pump sleeve device be put into vulcanizing oven and carry out 120 ℃～150 ℃ of vulcanizing treatment, vulcanizing treatment temperature, curing time is 1～3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108074 CN1103933A (en) | 1994-08-09 | 1994-08-09 | Abrasive resistance sand pump sleeve and the mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108074 CN1103933A (en) | 1994-08-09 | 1994-08-09 | Abrasive resistance sand pump sleeve and the mfg. method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103933A true CN1103933A (en) | 1995-06-21 |
Family
ID=5033335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94108074 Pending CN1103933A (en) | 1994-08-09 | 1994-08-09 | Abrasive resistance sand pump sleeve and the mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103933A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154038A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN104154039A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN104154040A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN105201914A (en) * | 2015-10-19 | 2015-12-30 | 肖琼 | Wear pump |
| CN106837875A (en) * | 2017-04-13 | 2017-06-13 | 广州市拓道流体设备技术有限公司 | A kind of abrasion-proof slurry pump pump housing |
| CN107327418A (en) * | 2017-07-12 | 2017-11-07 | 太仓旺泰净化设备有限公司 | A kind of safety-type water pump structure |
-
1994
- 1994-08-09 CN CN 94108074 patent/CN1103933A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154038A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN104154039A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN104154040A (en) * | 2014-08-07 | 2014-11-19 | 苏州淮通电气有限公司 | Flow guiding shell of submerged pump |
| CN105201914A (en) * | 2015-10-19 | 2015-12-30 | 肖琼 | Wear pump |
| CN106837875A (en) * | 2017-04-13 | 2017-06-13 | 广州市拓道流体设备技术有限公司 | A kind of abrasion-proof slurry pump pump housing |
| CN106837875B (en) * | 2017-04-13 | 2023-12-29 | 广州市拓道新材料科技有限公司 | Wear-resisting sediment stuff pump body |
| CN107327418A (en) * | 2017-07-12 | 2017-11-07 | 太仓旺泰净化设备有限公司 | A kind of safety-type water pump structure |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |