CN107377884A - The preparation method of the high pressure stainless steel pump housing - Google Patents
The preparation method of the high pressure stainless steel pump housing Download PDFInfo
- Publication number
- CN107377884A CN107377884A CN201710611854.7A CN201710611854A CN107377884A CN 107377884 A CN107377884 A CN 107377884A CN 201710611854 A CN201710611854 A CN 201710611854A CN 107377884 A CN107377884 A CN 107377884A
- Authority
- CN
- China
- Prior art keywords
- blank
- stainless steel
- preparation
- pump housing
- hydraulic pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
- B22C9/123—Gas-hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of preparation method of the high pressure stainless steel pump housing, comprise the following steps：Phenolic resin is added in blank to 25 35 DEG C, is blended 1 2min, adds polyphenylene polyphenyl cyanate, continue to be blended 1 2min by blank heating, and then under 0.3 0.35MPa pressure, blank is injected double hydraulic pressure wax mold die casting machine.By the above-mentioned means, present invention process is simple, the service life of valve length, qualification rate is high, substantially increases heat-and corrosion-resistant performance and the quality of product.
Description
Technical field
The present invention relates to valve body processing technique field, more particularly to a kind of preparation method of the high pressure stainless steel pump housing.
Background technology
Common valve is under deep-etching, poisonous and hazardous process conditions, and often poor sealing performance, easily leakage, housing are easily worn
Hole, service life are short, it is impossible to meet the particular/special requirement of permanently effective conveying poisonous medium.In order to meet that permanently effective conveying is poisonous
The demand of medium, some entity and individual have developed the special valve of suitable high corrosion medium conveying, to ensure safe effect, valve
Main parts size need from being able to bear strong corrosion and wear-resisting alloy material.It is mainly by constitutive material：Matrix is Fe members
Element, Cr, W, Ta, Mn, Al, P, S and C are mixed by certain part by weight, then obtained by melting, heat treatment and vacuum pouring
Valve steel material.The characteristics of program is that preparation technology simple, stable components, cost are low, and be with the addition of on raw material a variety of
Alloying element, there are the various features such as good mechanical property, high temperature resistant, radioresistance, be adapted to the application of fusion reactor.Similar patent is also
Have it is a lot, but such patent have one it is common the shortcomings that, mainly wear-resisting and corrosion resistance is poor, it is difficult to meets the change of high corrosion
High reliability request of the work valve to alloy material.
The content of the invention
The present invention solves the technical problem of：Can not only be wear-resisting, also it is resistant to corrode, and it is hard with preferable high temperature
Degree, can be widely applied in each kind valve body.
In order to solve the above technical problems, one aspect of the present invention is：A kind of high pressure stainless steel pump housing is provided
Preparation method, comprise the following steps：Phenolic resin is added in blank to 25-35 DEG C, is blended 1-2min by blank heating, then
Polyphenylene polyphenyl cyanate is added, continues to be blended 1-2min, then under 0.3-0.35MPa pressure, blank is injected duplex
Position hydraulic pressure wax mold die casting machine, then the Triethylamine gas with 2% is mixed, double hydraulic pressure wax-pattern pressure is blown under 0.2MPa pressure
Note machine, make blank rapid curing, harden certain time, after blank hardening, followed by original scavenger system, then be blown into cleaning
Dry air, to clean the residual amine in blank, and its intensity is can further improve, from double hydraulic pressure wax mold die casting machine
There is toxic amine gas containing remaining in the air of middle discharge, it is necessary to be sent in washing chamber, neutralized with acid, amine is removed, can also be used
Combustion method removes amine, finally, opens double hydraulic pressure wax mold die casting machine, takes out the blank hardened.
In a preferred embodiment of the present invention, the hardening certain time is 10-20S.
In a preferred embodiment of the present invention, the temperature that the blank injects double hydraulic pressure wax mold die casting machine is 50-
55℃。
In a preferred embodiment of the present invention, the blank is alloy material.
The beneficial effects of the invention are as follows：Technique is simple, the service life of valve length, and qualification rate is high, substantially increases heat-resisting
The quality of decay resistance and product.
Embodiment
It is described in detail with reference to presently preferred embodiments of the present invention, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, apparent clearly defined so as to be made to protection scope of the present invention.
Embodiment one
A kind of preparation method of the high pressure stainless steel pump housing, comprises the following steps：Blank heating to 25-35 DEG C, by phenolic resin plus
Enter in blank, be blended 1-2min, add polyphenylene polyphenyl cyanate, continue to be blended 1-2min, then in 0.3-0.35MPa
Under pressure, blank is injected double hydraulic pressure wax mold die casting machine, then the Triethylamine gas with 2% is mixed, in 0.2MPa pressure
Under be blown into double hydraulic pressure wax mold die casting machine, make blank rapid curing, harden certain time, blank hardening after, followed by
Originally scavenger system, then the air of clean dried is blown into, to clean the residual amine in blank, and it can further improve the strong of it
Spend, have toxic amine gas containing remaining in the air discharged from double hydraulic pressure wax mold die casting machine, it is necessary to be sent in washing chamber, use
Acid is neutralized, and amine is removed, also can remove amine using combustion method, finally, is opened double hydraulic pressure wax mold die casting machine, is taken out what is hardened
Blank.
Further illustrate, the hardening certain time is 10-20S, and the blank injects double hydraulic pressure wax mold die casting machine
Temperature be 50-55 DEG C, the blank is alloy material.
Be considered as in molding and core making it is following some：Should according to the size of alloy species and casting, reasonable selection resin
The size of type and mold thickness, placer iron is reduced as far as possible than the production cost with Modeling Material；Should be according to the height of room temperature, rationally choosing
With curing agent, when summer room temperature is high, from the relatively low curing agent of acid strength, when winter room temperature is relatively low, diformazan benzenephosphonic acid should be used
Based on, add the alcohol-soluble curing agent of proper inorganic acid；The mobility of resin sand is fine, but has obvious timeliness, it is necessary to
Molding and core making work is completed within the molding sand up time；Resin self-setting sand molding is difficult, can not be too late；Resin sand is in cast
Raising rate is very fast, it is necessary to takes measures to discharge gas, prevents the generation of stomata；Resin sand heat resistance is relatively low, it is necessary to upper to apply
Material, to ensure the surface quality of casting；, should be by " fast, steady, closing, rising pouring, guarantee pressure head and place according to organic binder bond feature
Manage dirty iron liquid " etc. principle design running gate system.It was verified that only following mentioned above principle carrys out molding and core making, it is only possible to obtain
The resin sand casting that quality is high, cost is low.Have the characteristics that：1st, casting dimension accuracy is high, and surface finishing, presentation quality are good.
2nd, can it is complex-shaped with cast structure, be difficult to other method realize processing part.3rd, alloy material is unrestricted, respectively
Kind alloy material is such as：The materials such as carbon steel, stainless steel, steel alloy, aluminium alloy, high temperature alloy and precious metal, it is especially difficult
With with forging, welding and machining alloy material, even more particularly suitable for solvent casting method.4th, production chains are good,
Strong adaptability.Single-piece or small serial production can be also applied for mass production.5th, solvent casting also has certain limitation, such as：Work
Skill flow is cumbersome, production cycle length.Because its adoptable casting technique means is limited, during for casting pressure-bearing slush casting,
Its bearing capacity can not be very high.
Present invention is disclosed a kind of preparation method of the high pressure stainless steel pump housing, and technique is simple, the service life of valve length, closes
Lattice rate is high, substantially increases heat-and corrosion-resistant performance and the quality of product.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (4)
- A kind of 1. preparation method of the high pressure stainless steel pump housing, it is characterised in that：Comprise the following steps：Blank heating to 25-35 DEG C, Phenolic resin is added in blank, 1-2min is blended, adds polyphenylene polyphenyl cyanate, continue to be blended 1-2min, then Under 0.3-0.35MPa pressure, blank is injected double hydraulic pressure wax mold die casting machine, then the Triethylamine gas with 2% is mixed, Double hydraulic pressure wax mold die casting machine is blown under 0.2MPa pressure, makes blank rapid curing, is hardened certain time, blank hardening Afterwards, followed by original scavenger system, then the air of clean dried is blown into, to clean the residual amine in blank, and one can be entered Step improves its intensity, and remnants are contained in the air discharged from double hydraulic pressure wax mold die casting machine has toxic amine gas, it is necessary to send Into washing chamber, neutralized with acid, amine is removed, also amine can be gone using combustion method, finally, open double hydraulic pressure wax-pattern pressure injection Machine, take out the blank hardened.
- 2. the preparation method of the high pressure stainless steel pump housing according to claim 1, it is characterised in that：The hardening certain time For 10-20S.
- 3. the preparation method of the high pressure stainless steel pump housing according to claim 1, it is characterised in that：The blank injects duplex The temperature of position hydraulic pressure wax mold die casting machine is 50-55 DEG C.
- 4. the preparation method of the high pressure stainless steel pump housing according to claim 1, it is characterised in that：The blank is alloy material Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710611854.7A CN107377884A (en) | 2017-07-25 | 2017-07-25 | The preparation method of the high pressure stainless steel pump housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710611854.7A CN107377884A (en) | 2017-07-25 | 2017-07-25 | The preparation method of the high pressure stainless steel pump housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107377884A true CN107377884A (en) | 2017-11-24 |
Family
ID=60336873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710611854.7A Pending CN107377884A (en) | 2017-07-25 | 2017-07-25 | The preparation method of the high pressure stainless steel pump housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107377884A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2595490Y (en) * | 2003-02-18 | 2003-12-31 | 刘忠奎 | Novel wax mold die casting machine |
| CN2868619Y (en) * | 2006-01-25 | 2007-02-14 | 广西玉柴机器股份有限公司 | Manual core-making solidifying machine using cold-core-sand |
| CN103691890A (en) * | 2013-12-24 | 2014-04-02 | 上海爱仕达汽车零部件有限公司 | Core manufacturing method of riser oil duct sand core during cylinder cover casting and cylinder cover casting method |
| CN104475687A (en) * | 2014-12-31 | 2015-04-01 | 南阳飞龙汽车零部件有限公司 | Venting sand core for shell mold casting mould |
| CN204892860U (en) * | 2015-09-10 | 2015-12-23 | 屏山县天成精密铸造有限责任公司 | Fired mold precision casting is with high heating efficiency's wax injector |
| CN106077498A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of core manufacturing craft of diesel engine cylinder block |
-
2017
- 2017-07-25 CN CN201710611854.7A patent/CN107377884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2595490Y (en) * | 2003-02-18 | 2003-12-31 | 刘忠奎 | Novel wax mold die casting machine |
| CN2868619Y (en) * | 2006-01-25 | 2007-02-14 | 广西玉柴机器股份有限公司 | Manual core-making solidifying machine using cold-core-sand |
| CN103691890A (en) * | 2013-12-24 | 2014-04-02 | 上海爱仕达汽车零部件有限公司 | Core manufacturing method of riser oil duct sand core during cylinder cover casting and cylinder cover casting method |
| CN104475687A (en) * | 2014-12-31 | 2015-04-01 | 南阳飞龙汽车零部件有限公司 | Venting sand core for shell mold casting mould |
| CN204892860U (en) * | 2015-09-10 | 2015-12-23 | 屏山县天成精密铸造有限责任公司 | Fired mold precision casting is with high heating efficiency's wax injector |
| CN106077498A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of core manufacturing craft of diesel engine cylinder block |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
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| RJ01 | Rejection of invention patent application after publication |