CN102734153A - High wear-resisting S valve used for concrete pump and manufacturing method of S valve - Google Patents
High wear-resisting S valve used for concrete pump and manufacturing method of S valve Download PDFInfo
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- CN102734153A CN102734153A CN2012102417918A CN201210241791A CN102734153A CN 102734153 A CN102734153 A CN 102734153A CN 2012102417918 A CN2012102417918 A CN 2012102417918A CN 201210241791 A CN201210241791 A CN 201210241791A CN 102734153 A CN102734153 A CN 102734153A
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Abstract
The invention discloses a high wear-resisting S valve for a concrete pump and a manufacturing method of the S valve. The manufacturing method comprises a mechanical processing technology and an assembly technology of a valve body, a rotary shaft and an input/output concrete port of the S valve and is characterized by also comprising the following steps of: manufacturing a high performance inner wall wear resistance layer of the valve body of the S valve; and selecting abrasive formed by mixing corundum and ceramic with an equal ratio, mixing the abrasive with resin glue to form paste, coating the paste on the inner wall of the valve body of the S valve, and sintering to form a wear resistance layer on the inner wall of the valve body of the S valve, wherein the rigidity of the wear resistance layer on the inner wall of the valve body of the S valve reaches HV1500. The high wear resistance S valve has high wear resistance.
Description
Technical field
The present invention relates to the transmission and concrete transmission S valve that a kind of concrete pumping machinery is used, particularly disclose a kind of high-wear resistance S valve and production method thereof, be applicable to use in the market concrete pump, Vehicle loaded pump and arm-pump more widely.
Background technique
At present, in the concrete construction of national key construction project, all adopted concrete pumping technique, its using scope has spreaded all in the engineerings such as water conservancy, water power, subway, bridge, large foundation, tall building and civil building.Become the first-selected type of pumping concrete construction machinery in recent years.But which kind of concrete pumping system is all bound concrete S valve of input and output flow-like that is used for.
The technology of the wearing layer of S valve employing has two kinds in the industry at present, and a kind of is that whole valve body is used the cast steel structure, does not have wearing layer, and working life is extremely low; Another kind is that valve body adopts welded-steel plate construction; Then at the very high wear-resisting layer of valve interior wall built-up welding one deck hardness; Improved the wear-resisting property of S valve to a certain extent, but the ultra only HV850 of this wearing layer maximum hardness still can not satisfy usage requirement well.
Summary of the invention
The objective of the invention is to solve concrete pumping system in construction; Because of the worn out replacing component affects of valve body engineering construction progress problem; Design a kind of high-wear resistance S valve and production method thereof that is used on the concrete pump, use the valve interior wall of abrasive material sintering structure, fundamentally solved the wear-resisting property of valve body; Improve concrete pumping system S valve working life, meet the need of market.
The present invention is achieved in that a kind of high-wear resistance S valve and production method thereof that is used on the concrete pump; Its production method comprises valve body, the rotating shaft of S valve, the machining and the packaging technology of I/O concrete port, it is characterized in that: also comprise the manufacturing of the valve interior wall wearing layer of high-performance S valve:
A, be coated in the valve interior wall of S valve, form abrasive material with abrasive material and resin glue furnishing paste;
The abrasive material that the valve interior wall of B, sintering S valve applies, the wearing layer of formation S valve;
Described abrasive material is selected one or both in quartz, corundum and pottery; Described resin glue is selected a kind of in cyanate ester, epoxy resin, phenolic resin, BMI; Described abrasive material sintering places 250～450 ℃ of High Temperature Furnaces sintering with valve body integral body, or adopts the flame gun sintering, and is different according to the resin glue that adopts, and adopts different sintering temperatures.
The abrasive material that the valve interior wall wearing layer of said S valve is selected for use is corundum and pottery, and both weight percent proportionings are corundum: pottery=1:2.
Production method of the present invention obtains is used for the high-wear resistance S valve on the concrete pump, and it is characterized in that: the wearing layer hardness of the valve interior wall of described S valve reaches HV1500.
The invention has the beneficial effects as follows: the present invention uses the abrasive material sintering structure; Wearing layer hardness is improved about HV1500; Fundamentally solved the wear-resisting property of valve body; Can resist of impact and the friction of the concrete fluid of high speed, high pressure, the working life of having improved the S valve greatly to the generation of S valve body.
Below in conjunction with accompanying drawing the present invention is described further.
Description of drawings
Fig. 1 is a S valve arrangement design plan view of the present invention.
Fig. 2 is a manufacturing process flow skeleton diagram of the present invention.
Among the figure: 1, material feeding mouth; 2, rotating shaft; 3, valve body; 4, wearing layer; 5, discharge port.
Embodiment
According to attaching Fig. 1 and 2; A kind of high-wear resistance S valve and production method thereof that is used on the concrete pump of the present invention; Its production method comprises valve body, the rotating shaft of S valve, the machining and the packaging technology of I/O concrete port, also comprises the manufacturing of the valve interior wall wearing layer of high-performance S valve:
A, be coated in the valve interior wall of S valve, form abrasive material with abrasive material and resin glue furnishing paste;
B, with the abrasive material that valve body integral body places 250～450 ℃ of High Temperature Furnacess or adopts the valve interior wall of flame gun sintering S valve to apply, form the wearing layer of S valve.
Used abrasive material is selected one or both in quartz, corundum and pottery, resin glue is selected a kind of in cyanate ester, epoxy resin, phenolic resin, BMI.
S valve of the present invention is made up of material feeding mouth 1, rotating shaft 2, valve body 3, wearing layer 4, discharge port 5.After material feeding mouth 1, rotating shaft 2, valve body 3, discharge port 5 are dressed up valve body through soldering group; To be coated in valve body 3 inwalls with the mixed granular abrasive material of high temperature resistant glue with hairbrush; Through high temperature sintering, abrasive slurries forms the high-performance abrasion-proof layer 4 about one deck hardness HV1500.Carry out painting technology at last, form product S valve of the present invention.
The present invention is an example with the S valve of HDL5381THB-48 rice jib pump truck feed system.
The abrasive material that the valve interior wall wearing layer of S valve is selected for use is corundum and pottery, and both weight percent proportionings are corundum: pottery=1:2, after cyanate mixes, are coated on the valve interior wall of S valve, place 300 ℃ of High Temperature Furnaces sintering again, forms wearing layer 4.Pass through the wearing layer 4 of valve body 3 inwalls with the pressure of 32MPa when concrete material; When discharge port 5 is sent into the pump truck pipeline; Because wearing layer 4 hardness reach about HV1500, and become one with valve body 3, so this layer wearing layer 4 cut off at a high speed, the high pressure concrete fluid contacts with valve body 3; Make valve body 3 avoid friction, the working life of having improved the S valve.
Existing wearing layer maximum hardness through the build-up wear-resistant scolder is less than HV850, and S valve wearing layer hardness of the present invention is about HV1500, and therefore, the present invention has fundamentally solved the wear resistance problem of S valve.
Product of the present invention has the characteristics of high wear resistance, can be widely used in all kinds of concrete pumping machinery products of urban architecture, bridge, foundation construction use.
Claims (3)
1. production method that is used for the high-wear resistance S valve on the concrete pump; It comprises valve body, the rotating shaft of S valve, the machining and the packaging technology of I/O concrete port, it is characterized in that: also comprise the manufacturing of the valve interior wall wearing layer of high-performance S valve:
A, be coated in the valve interior wall of S valve, form abrasive material with abrasive material and resin glue furnishing paste;
The abrasive material that the valve interior wall of B, sintering S valve applies, the wearing layer of formation S valve;
Described abrasive material is selected one or both in quartz, corundum and pottery; Described resin glue is selected a kind of in cyanate ester, epoxy resin, phenolic resin, BMI; Described abrasive material sintering places 250～450 ℃ of High Temperature Furnaces sintering with valve body integral body, or adopts the flame gun sintering.
2. according to the described a kind of production method that is used for the high-wear resistance S valve on the concrete pump of claim 1; It is characterized in that: the abrasive material that the valve interior wall wearing layer of said S valve is selected for use is corundum and pottery, and both weight percent proportionings are corundum: pottery=1:2.
3. one kind is used for the high-wear resistance S valve on the concrete pump by what claim 1 or 2 described production methodes obtained, and it is characterized in that: the wearing layer hardness of the valve interior wall of described S valve reaches HV1500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102417918A CN102734153A (en) | 2012-07-13 | 2012-07-13 | High wear-resisting S valve used for concrete pump and manufacturing method of S valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102417918A CN102734153A (en) | 2012-07-13 | 2012-07-13 | High wear-resisting S valve used for concrete pump and manufacturing method of S valve |
Publications (1)
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| CN102734153A true CN102734153A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102417918A Pending CN102734153A (en) | 2012-07-13 | 2012-07-13 | High wear-resisting S valve used for concrete pump and manufacturing method of S valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658658A (en) * | 2013-12-12 | 2014-03-26 | 中联重科股份有限公司 | Concrete conveying equipment, manufacturing method of S pipe of concrete conveying equipment and SHS reactant |
Citations (6)
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| CN2285379Y (en) * | 1996-12-13 | 1998-07-01 | 李仁� | Distributing valve for concrete pump |
| US5802955A (en) * | 1995-03-03 | 1998-09-08 | Kennametal Inc. | Corrosion resistant cermet wear parts |
| CN1631981A (en) * | 2004-11-19 | 2005-06-29 | 竺华锋 | Use of polyamide composite materials in preparation of pump or valve |
| CN1800688A (en) * | 2006-01-04 | 2006-07-12 | 郭庆虎 | Novel S valve assembly for casting hard alloy layer |
| CN102040901A (en) * | 2010-11-11 | 2011-05-04 | 西北矿冶研究院 | Polymer wear-resistant coating material |
| CN102120263A (en) * | 2010-01-08 | 2011-07-13 | 三河市科大博德粉末有限公司 | Method for preparing wear-resistance coating |
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2012
- 2012-07-13 CN CN2012102417918A patent/CN102734153A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| US5802955A (en) * | 1995-03-03 | 1998-09-08 | Kennametal Inc. | Corrosion resistant cermet wear parts |
| CN2285379Y (en) * | 1996-12-13 | 1998-07-01 | 李仁� | Distributing valve for concrete pump |
| CN1631981A (en) * | 2004-11-19 | 2005-06-29 | 竺华锋 | Use of polyamide composite materials in preparation of pump or valve |
| CN1800688A (en) * | 2006-01-04 | 2006-07-12 | 郭庆虎 | Novel S valve assembly for casting hard alloy layer |
| CN102120263A (en) * | 2010-01-08 | 2011-07-13 | 三河市科大博德粉末有限公司 | Method for preparing wear-resistance coating |
| CN102040901A (en) * | 2010-11-11 | 2011-05-04 | 西北矿冶研究院 | Polymer wear-resistant coating material |
Non-Patent Citations (2)
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| 曹丽凤等: "耐磨陶瓷/聚合物(高分子)涂层的研究", 《稀有金属材料与工程》, 15 August 2007 (2007-08-15) * |
| 王秀山，宋秀芝: "泥浆泵壳的耐磨涂层工艺", 《水利电力机械》, no. 01, 20 February 1994 (1994-02-20) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658658A (en) * | 2013-12-12 | 2014-03-26 | 中联重科股份有限公司 | Concrete conveying equipment, manufacturing method of S pipe of concrete conveying equipment and SHS reactant |
| CN103658658B (en) * | 2013-12-12 | 2016-02-24 | 中联重科股份有限公司 | The manufacture method of concrete conveying equipment and S pipe thereof, SHS reactant |
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Application publication date: 20121017 |