CN104500387A - Plunger pump cylinder structure for compositing copper alloy and compositing method thereof - Google Patents
Plunger pump cylinder structure for compositing copper alloy and compositing method thereof Download PDFInfo
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- CN104500387A CN104500387A CN201510001327.5A CN201510001327A CN104500387A CN 104500387 A CN104500387 A CN 104500387A CN 201510001327 A CN201510001327 A CN 201510001327A CN 104500387 A CN104500387 A CN 104500387A
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- plunger pump
- pump cylinder
- cylinder body
- copper alloy
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 loose Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a plunger pump cylinder blank structure and a method for compositing two types of copper alloy on the upper surface of the plunger pump cylinder blank structure. The compositing method comprises the steps of 1, cleaning the surface to be casted, activating, mounting a copper sleeve 5 and a core rod 4 which are manufactured from the first type of copper alloy in seven cylinder holes 2 in a blank 1, sealing the lower end surface of the blank through a sealing plate, forming ventilating holes in the sealing plate, and positioning the second type of copper alloy on a spherical concave surface 3; 2, preheating; 3, melting; 4, maintaining the temperature and standing; 5, cooling and discharging from a furnace. With the adoption of the method, different types of copper alloy can be composited on two different work panels of a plunger pump cylinder, and the service and the service life of a plunger pump can be improved and prolonged.
Description
Technical field
The present invention relates to a kind of processing method of plunger pump cylinder body, particularly relate to a kind of method of complex copper alloy in plunger pump cylinder body.
Background technique
In the hydraulic components of existing engineering machinery, many high-end products are had to relate to the complex technique of Cuprum alloy and ferrous materials, this compound is not simple machinery laminating, but the metallurgy combination between both materials, namely on the interface of bi-material, there is interpenetrating and metallurgical reaction between atom, thus have very high technical requirements to combination process.As common hydraulic plunger pump cylinder body, in order to solve the Friction pairs matching problem of cylinder body and the part such as plunger, oil distribution casing in using process, its cylinder body is exactly the composite component by steel base and Cuprum alloy, and its composite surface comprises plane, curved surface, cylndrical surface and hole.
Existing domestic steel base (with blank before the founding of steel machine shaping) is combined with the founding of Cuprum alloy, in the compound in cylndrical surface and hole, also there is no the manufacturing experience of like, at present, the Complex Problem of domestic solution hydraulic plunger pump cylinder body plunger hole (cylindrical hole), usual employing is poured into a mould or is inlayed the way of copper sheathing, pouring process is that copper fusing is adopted the mode manually copper liquid is poured in steel base afterwards, it is large to there is labor intensity in it, manufacturing efficiency is low, potential safety hazard is large, the shortcomings such as up-to-standard rate low (especially larger-size product), in the cast compound in cylndrical surface and hole, there is congenital deficiency---the solution that the consecutive solidification problem of copper in hole is never suitable.The way of inlaying copper sheathing adopts mechanical force to make copper sheathing be interference fitted in the hole of steel base, it is simple machinery laminating, this processing method in use copper sheathing is very easily extracted, and there is very large use safety hidden danger, especially in mesohigh, high-pressure and hydraulic plunger pump, potential safety hazard is larger.
Chinese patent CN 102513521 B discloses and a kind ofly the invention discloses a kind of steel base of hydraulic plunger pump cylinder body and the casting method in Cuprum alloy cylndrical surface and hole, and step is as follows: clean steel base needs founding surface, and effects on surface activates; Cuprum alloy is positioned in steel base, carries out preheating; Melting copper alloy makes it flow into steel base and needs recombination region; 30-60min is placed in insulation; Two sections of coolings.The problem of steel base and Cuprum alloy two kinds of metal material metallurgy combination is efficiently solved after adopting this technology, and make the adhesive strength at its interface reach the reprocessing of product and practical working condition requirement, the up-to-standard rate of this series products (the overall founding cylinder blank of hydraulic planger pump steel base) is made to reach more than 95%, manufacturing efficiency is at least enhanced about more than once, adhesive strength improves about 20%, relatively domestic with interior product cost decline about 15%.
But in real work, the working surface operating mode of plunger pump different parts is different, to improve service behaviour further, needs the Cuprum alloy that compound is different on no working surface, and said method can only on cylinder body founding one Albatra metal-, the development of plunger pump technique can not be met.
Summary of the invention
The technical problem to be solved in the present invention is: can only the problem of compound one Albatra metal-for current hydraulic plunger pump cylinder body complex copper alloy technology, provide a kind of can on the different operating face of plunger pump cylinder body the method for compound different Cu alloy.
Technological scheme of the present invention is:
For a plunger pump cylinder body structure for complex copper alloy, the center of top of blank has spherical concave surface, and blank inside is provided with the cylinder bore of a loop pillar shape, and install copper sheathing in cylinder bore, copper sheathing is enclosed within plug.
Copper sheathing top is lower than plug top, and plug central authorities offer through hole, and sealing plate is installed in blank lower end surface, only reserves the air hole be communicated with through hole.
In above-mentioned plunger pump cylinder body structure, the method compound of compound two Albatra metal-comprises the following steps:
One, clean blank needs founding surface, then founding surface metal activation agent being smeared or is placed on steel base activates, copper sheathing by the first copper alloy and plug are installed in the cylinder bore of blank, and seal with the lower end surface of sealing plate by blank, reserve air hole on sealing plate, spherical concave surface is placed the second Cuprum alloy;
Two, preheating blank and Cuprum alloy;
Three, melting copper alloy, makes the Cuprum alloy in the copper sheathing in cylinder bore and spherical concave surface melt;
Four, insulation leaves standstill, and adjustment temperature control device, makes the lower temperature of the blank in stove 5-15 DEG C lower than upper end temperature;
Five, cooling is come out of the stove.
In step 2, fill purity during preheating and be not less than 99.99% nitrogen do protection gas; Preheating temperature is 800-860 DEG C, time 30-60min.
In step 3, be not less than 99.99% nitrogen by purity during fusing and make protection gas, melting point is 1080 DEG C to 1150 DEG C.
In step 4, holding temperature, at 1080 to 1100 DEG C, allows blank (1) and the insulation of the Cuprum alloy after melting place 30-60min.
In step 5, cooling is divided into two stages, and the requirement of first stage is: be not less than 99.99% nitrogen by purity and make protection gas, at 920-940 DEG C of insulation 30-60min; The requirement of second stage is: be not less than 99.9% nitrogen by purity and make protection gas, naturally cool to less than 200 DEG C and come out of the stove in stove.
Beneficial effect of the present invention:
1. the present invention can be implemented in plunger pump cylinder body two different operating faces on compound different Cu alloy, improve the performance and used life of plunger pump.
2., when processing blank, first do not process the connecting passage for connecting cylinder bore and spherical concave surface, so just can compound two kinds is different in cylinder bore and spherical concave surface respectively Cuprum alloy, and do not worry that both can mix mutually; After compound completes, then row processing connecting passage.
3. the technical parameter such as preheat time, holding time, setting temperature, rate of cooling in fusion-casting process, effectively can reduce the probability that the defects such as pore, loose, slag inclusion appear in founding face, make it meet international standards.
4. plug is set in founding hole, the nucleation rate of cylinder can be increased and form certain Subcoold temperature, the use amount of Cuprum alloy can also be saved.
5. plug central authorities offer through hole, can ensure melt copper sheathing time cylinder bore in air pressure can and atmospheric equilibrium.
accompanying drawing illustrates:
Fig. 1 is the structural representation of blank to be composite in the present invention;
embodiment:
As figure, the center of top of hydraulic plunger pump cylinder body blank 1 has spherical concave surface 3, and blank 1 inside is provided with the cylinder bore 2 of a loop pillar shape, totally 7, is not communicated with between cylinder bore 2 and spherical concave surface 3.To the copper alloy being compounded in cylinder bore 2 inwall be needed to become copper sheathing 5 in advance, and making plug 4, the external diameter of copper sheathing 5 is identical with the diameter of cylinder bore 2, and the external diameter of plug 4 is identical with the internal diameter of copper sheathing 5, and at a plug 4 central authorities processing through hole, the low 2-5mm of height of the aspect ratio plug 4 of copper sheathing 5.
Composite steps is as follows:
One, clean blank 1 needs founding surface, then founding surface metal activation agent being smeared or is placed on steel base activates, copper sheathing 5 by the first copper alloy and plug 4 are installed in 7 cylinder bore 2 of blank 1, and seal with the lower end surface of sealing plate by blank 1, reserve air hole on sealing plate, spherical concave surface 3 places the second Cuprum alloy.
Two, preheating blank 1 and Cuprum alloy; Fill purity during preheating and be not less than 99.99% nitrogen do protection gas; Preheating temperature is 800-860 DEG C, time 30-60min.
Three, melting copper alloy, makes the copper sheathing 5 in cylinder bore 2 and the fusing of the Cuprum alloy in spherical concave surface 3; Be not less than 99.99% nitrogen by purity during fusing and make protection gas, melting point is 1080 DEG C to 1150 DEG C.
Four, insulation leaves standstill, and holding temperature, at 1080 to 1100 DEG C, allows blank 1 and the insulation of the Cuprum alloy after melting place 30-60min; And adjust temperature control device, make the lower temperature of the blank 1 in stove 5-15 DEG C lower than upper end temperature.
Five, cooling is come out of the stove, and cooling is divided into two stages, and the requirement of first stage is: be not less than 99.99% nitrogen by purity and make protection gas, at 920-940 DEG C of insulation 30-60min; The requirement of second stage is: be not less than 99.9% nitrogen by purity and make protection gas, naturally cool to less than 200 DEG C and come out of the stove in stove.
Claims (7)
1. the plunger pump cylinder body structure for complex copper alloy, the center of top of blank (1) has spherical concave surface (3), blank (1) inside is provided with the cylinder bore (2) of a loop pillar shape, it is characterized in that: install copper sheathing (5) in cylinder bore (2), copper sheathing (5) is enclosed within plug (4).
2. according to claim 1 for the plunger pump cylinder body structure of complex copper alloy, it is characterized in that: copper sheathing (5) top is lower than plug (4) top, plug (4) central authorities offer through hole, and sealing plate is installed in blank (1) lower end surface, only reserves the air hole be communicated with through hole.
3. the method for compound two Albatra metal-in plunger pump cylinder body structure as claimed in claim 2, is characterized in that: compound comprises the following steps:
One, clean blank (1) needs founding surface, then founding surface metal activation agent being smeared or is placed on steel base activates, copper sheathing (5) by the first copper alloy and plug (4) are installed in the cylinder bore (2) in blank (1), and seal with the lower end surface of sealing plate by blank (1), air hole is reserved, at spherical concave surface (3) upper placement the second Cuprum alloy on sealing plate;
Two, preheating blank (1) and Cuprum alloy;
Three, melting copper alloy, makes the copper sheathing (5) in cylinder bore (2) and the fusing of the Cuprum alloy in spherical concave surface (3);
Four, insulation leaves standstill, and adjustment temperature control device, makes the lower temperature of the blank in stove (1) 5-15 DEG C lower than upper end temperature;
Five, cooling is come out of the stove.
4. the method for compound two Albatra metal-on plunger pump cylinder body blank according to claim 3, is characterized in that: in step 2, fills purity and be not less than 99.99% nitrogen and make protection gas during preheating; Preheating temperature is 800-860 DEG C, time 30-60min.
5. the method for compound two Albatra metal-on plunger pump cylinder body blank according to claim 4, it is characterized in that: in step 3, be not less than 99.99% nitrogen by purity during fusing and make protection gas, melting point is 1080 DEG C to 1150 DEG C.
6. the method for compound two Albatra metal-on plunger pump cylinder body blank according to claim 5, is characterized in that: in step 4, and holding temperature, at 1080-1100 DEG C, allows the Cuprum alloy insulation after blank (1) and fusing place 30-60min.
7. the method for compound two Albatra metal-on plunger pump cylinder body blank according to claim 6, it is characterized in that: in step 5, cooling is divided into two stages, and the requirement of first stage is: be not less than 99.99% nitrogen by purity and make protection gas, at 920-940 DEG C of insulation 30-60min; The requirement of second stage is: be not less than 99.9% nitrogen by purity and make protection gas, naturally cool to less than 200 DEG C and come out of the stove in stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001327.5A CN104500387B (en) | 2015-01-05 | 2015-01-05 | A kind of plunger pump cylinder body structure for complex copper alloy and complex method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001327.5A CN104500387B (en) | 2015-01-05 | 2015-01-05 | A kind of plunger pump cylinder body structure for complex copper alloy and complex method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104500387A true CN104500387A (en) | 2015-04-08 |
| CN104500387B CN104500387B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510001327.5A Active CN104500387B (en) | 2015-01-05 | 2015-01-05 | A kind of plunger pump cylinder body structure for complex copper alloy and complex method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118559370A (en) * | 2024-08-05 | 2024-08-30 | 贵州鼎成熔鑫科技有限公司 | Processing method of plunger pump copper spherical friction pair |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257963A (en) * | 1984-06-06 | 1985-12-19 | Kawasaki Heavy Ind Ltd | Production of mud pump liner |
| CN1161259A (en) * | 1997-01-14 | 1997-10-08 | 冶金工业部钢铁研究总院 | Method for mfg. double metal plunger cylinder made of steel-copper and lead alloy |
| CN102513521A (en) * | 2012-01-12 | 2012-06-27 | 贵州鼎成熔鑫科技有限公司 | Method for casting cylindrical surfaces and holes of steel matrix and copper alloy of hydraulic plunger pump cylinder body |
| CN102889205A (en) * | 2011-07-21 | 2013-01-23 | 游礼福 | Cylinder body structure for high-pressure plunger pump |
| CN204610265U (en) * | 2015-01-05 | 2015-09-02 | 贵州鼎成熔鑫科技有限公司 | A kind of plunger pump cylinder body structure for complex copper alloy |
-
2015
- 2015-01-05 CN CN201510001327.5A patent/CN104500387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257963A (en) * | 1984-06-06 | 1985-12-19 | Kawasaki Heavy Ind Ltd | Production of mud pump liner |
| CN1161259A (en) * | 1997-01-14 | 1997-10-08 | 冶金工业部钢铁研究总院 | Method for mfg. double metal plunger cylinder made of steel-copper and lead alloy |
| CN102889205A (en) * | 2011-07-21 | 2013-01-23 | 游礼福 | Cylinder body structure for high-pressure plunger pump |
| CN102513521A (en) * | 2012-01-12 | 2012-06-27 | 贵州鼎成熔鑫科技有限公司 | Method for casting cylindrical surfaces and holes of steel matrix and copper alloy of hydraulic plunger pump cylinder body |
| CN204610265U (en) * | 2015-01-05 | 2015-09-02 | 贵州鼎成熔鑫科技有限公司 | A kind of plunger pump cylinder body structure for complex copper alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118559370A (en) * | 2024-08-05 | 2024-08-30 | 贵州鼎成熔鑫科技有限公司 | Processing method of plunger pump copper spherical friction pair |
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| CN104500387B (en) | 2016-08-10 |
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Denomination of invention: A Plunger Pump Cylinder Structure and Composite Method for Composite Copper Alloy Granted publication date: 20160810 Pledgee: Agricultural Bank of China Limited Guiyang Jiaxiu sub branch Pledgor: GUIZHOU DINGCHENG RONGXIN TECHNOLOGY Co.,Ltd. Registration number: Y2024520000013 |
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