CN101590586A - A kind of manufacture method of valve retainer and mould - Google Patents
A kind of manufacture method of valve retainer and mould Download PDFInfo
- Publication number
- CN101590586A CN101590586A CNA2009103039445A CN200910303944A CN101590586A CN 101590586 A CN101590586 A CN 101590586A CN A2009103039445 A CNA2009103039445 A CN A2009103039445A CN 200910303944 A CN200910303944 A CN 200910303944A CN 101590586 A CN101590586 A CN 101590586A
- Authority
- CN
- China
- Prior art keywords
- valve retainer
- mould
- manufacture method
- guiding gutter
- annular groove
- 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.)
- Granted
Links
Images
Landscapes
- Sliding Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of manufacture method of valve retainer, this step of manufacturing is as follows: cast gate is installed, Metal Melting, casting, the demoulding, heat treatment, grinding on mould; Described mould is a valve retainer straight forming mould.The manufacture method of valve retainer of the present invention is compared with existing manufacture method, save head, boring endoporus, taken off cylindrical, cut off four steps, therefore simplified the step of producing, saved a large amount of labours, equipment input and energy resource consumption have been reduced, shorten the production cycle, reduced production cost.
Description
Technical field
The present invention relates to a kind of manufacture method of valve retainer, also relate to the employed valve retainer straight forming of a kind of this manufacture method mould simultaneously.
Background technology
Valve retainer is one of vitals on the automobile engine, it act as the unobstructed and sealing of exhaust that guarantees the automobile engine to exhaust door, therefore it is high temperature resistant to need valve retainer to have, wear-resistingly undermine characteristics such as anti-oxidant, the general material that is adopted is a high-chromium alloy, and the specification of valve retainer and the machining accuracy of size also had higher requirement, allow the error that reaches minimum.Along with science and technology development, people are more and more higher to the performance requirement of the valve retainer of engine, and the technical staff is also constantly adjusting, optimizing people's treatment process and casting technique, and the precision of improving machining satisfies people's demand.
The manufacture method of present valve retainer may further comprise the steps: cast gate is installed on mould, and Metal Melting, casting (in 1650 ℃), the demoulding, heat treatment (quenching after annealing), head, the boring endoporus is taken off cylindrical, cuts off, grinding, the centre bore essence is dug.Wherein the mould that is adopted is a cylindrical mould, be provided with the core of column in the center fixation of cylindrical mould, casting, what obtain after the demoulding is the tubular blank foundry goods, it is cut off and follow-up processing is handled and obtained valve retainer, but adopt this mould can cause following problem: because very high to the requirement on machining accuracy of valve retainer, therefore also very high to the requirement of cylindrical mould center core, promptly require the outer cylinder integral body of column core comparatively even, and when being installed, core need carry out accurate in locating to it, position at the casting cycle core mould often is easy to generate deviation, the centre bore of the tubular blank foundry goods after causing casting departs from central axis, but also can cause the inhomogeneous of valve retainer wall thickness; When secondly cylindrical mould being cast, casting amount once is bigger, in casting cycle, produce bubble easily, make the tubular blank foundry goods of producing produce local defective, and the molten metal of casting is under the gravity effect, make the tubular blank foundry goods after the casting inhomogeneous up and down easily, be easy to generate and distortion.
At above-mentioned problem, the common method that adopts is for increasing the wall thickness of tubular blank foundry goods at present, be that cylindrical increases by 3 millimeters, endoporus reduces 6 millimeters, and the operation of adopt head, boring endoporus then in follow-up mechanical processing steps, taking off cylindrical is proofreaied and correct and adjusted.Head are about to the two ends of tubular blank foundry goods and carry out grinding or machining, proofread and correct the end of casting back tubular blank foundry goods, make its both ends smooth and parallel, conveniently carry out follow-up processing; The boring endoporus that carries out then, to take off cylindrical be to be used to proofread and correct the distortion of tubular blank foundry goods and wall unevenness is even and the deflection of centre bore.By above-mentioned head, boring endoporus, take off the cylindrical machining operations after, also need the tubular blank foundry goods is carried out horizontal cut-out, carry out grinding again and just can obtain meeting the valve retainer of production requirement, therefore the step that should produce is comparatively loaded down with trivial details, need the equipment and the labour that drop into to increase greatly, and in follow-up machining, need the tubular blank foundry goods is proofreaied and correct, make the cycle of producing prolong greatly, production cost increases greatly, has therefore influenced the market competitiveness of the valve retainer of final production.
Summary of the invention
The purpose of this invention is to provide the manufacture method of the comparatively simple valve retainer of a kind of step,, reduce production costs to shorten the production cycle.
Another object of the present invention provides the employed valve retainer straight forming of a kind of above-mentioned manufacture method mould.
In order to realize above purpose, the technical scheme that manufacture method adopted of valve retainer of the present invention is: cast gate is installed on mould, and Metal Melting, casting, the demoulding, heat treatment, grinding, the centre bore essence is dug; Described mould is a valve retainer straight forming mould.
Described valve retainer straight forming mould comprises the dish type body, offers annular groove on the card of dish type body.
Offer guiding gutter on the described dish type body, this guiding gutter is connected with described annular groove.
Described guiding gutter is provided with closing in the place of connection of annular groove.
Described cast temperature is 1450-1500 ℃.
Described heat treatment is in 950-980 ℃ of quenching 4-6 hour, again in 700 ℃ of annealing 4-6 hour.
The technical scheme that valve retainer straight forming mould of the present invention is adopted is: a kind of valve retainer straight forming mould, this mould comprises the dish type body, offer annular groove and guiding gutter on the card of this dish type body, this guiding gutter is connected with described annular groove.
Described guiding gutter is provided with closing in the place of connection of annular groove.
Used valve retainer straight forming mould in the manufacture method of valve retainer of the present invention, shape according to the valve retainer of final manufacturing, design has the mould of respective annular groove on mould dish type body card, at first because the height of the degree of depth of annular groove and valve retainer is basic identical, the position of center core is comparatively fixing, its the specification and the requirement of machining accuracy are reduced greatly, make that the position of employing mould of the present invention rough casting centre bore after casting is comparatively fixing, the deviation that exists is less, and the center core is also than being easier to processing; Secondly will obtain a valve retainer owing to once cast, the casting amount reduces greatly, and casting liquid is reduced by the influence of self gravitation greatly, therefore can effectively prevent the inclination and the distortion of valve retainer.In sum, in the manufacture process of valve retainer, can reduce valve retainer wall rough casting wall thickness, promptly increase cylindrical less than 1 millimeter, reduce endoporus less than 2 millimeters, rough casting after the feasible casting is through the demoulding, can directly carry out grinding after the heat treatment, compare with existing manufacture method, head have been saved, the boring endoporus, take off the step of cylindrical, and adopt valve retainer straight forming mould can save the step of cut-out, therefore simplified production technology greatly, saved a large amount of labours, reduce equipment input and energy resource consumption, shortened the production cycle, reduced production cost.Cast temperature in the manufacture method of valve retainer of the present invention is lower in addition, has therefore reduced the energy resource consumption of producing.
Valve retainer straight forming mould of the present invention can be two or more at its annular groove of offering, is communicated with all annular grooves by the guiding gutter that is opened on the dish type body, a plurality of valve retainer rough castings of once can casting; On the bottom land of dish type body guiding gutter, can also be provided with the intercommunicating pore that connects adjacent valve retainer straight forming mould guiding gutter, can carry out at least two valve retainer straight forming mould stacked, be connected by the guiding gutter of the intercommunicating pore on the bottom land that is arranged on dish type body guiding gutter each valve retainer straight forming mould, therefore a plurality of valve retainer straight forming moulds of can once casting have improved the efficient of casting.
Description of drawings
Fig. 1 is the front view of valve retainer straight forming mould;
Fig. 2 is an A-A cross sectional view among Fig. 1;
Fig. 3 is the structural representation of the mould of a plurality of dish type bodies of employing.
The specific embodiment
The valve retainer straight forming mould of present embodiment, as shown in Figure 1, 2, this valve retainer straight forming mould comprises dish type body 5, on the card of dish type body 5, offer some annular grooves 1, also offer guiding gutter 3 on the described dish type body 5, this guiding gutter 3 is connected with all annular groove; Be provided with closing in 2 at guiding gutter 3 with the place of connection of annular groove 1, the effect of closing in is that valve retainer is taken off from casting matrix easily, has also made things convenient for the polishing to the cast gate of valve retainer simultaneously.
The concrete steps of the manufacture method of the valve retainer of present embodiment are as follows:
(1) cast gate is installed on mould: with the top seal of valve retainer straight forming mould, and the installation cast gate makes it to be connected with the guiding gutter of mould;
(2) melting high-chromium alloy is cast in 1450 ℃, and the demoulding obtains the valve retainer rough casting;
(3) heat treatment: in 950-980 ℃ of quenching 6 hours, again in 700 ℃ of annealing 6 hours;
(4) grinding: the valve retainer rough casting after the heat treatment is carried out flat stone mill and peripheral milling;
(5) the centre bore essence is dug: the centre bore of the valve retainer rough casting after the grinding is carried out essence dig and obtain the valve retainer finished product.
The manufacture method of the valve retainer of present embodiment is with embodiment 1, the difference part is: as shown in Figure 3, the mould that is adopted is by several dish type bodies stacked forming about in the of 5, the bottom land of the guiding gutter of the dish type body 5 on the dish type body 6 of the bottom all offers intercommunicating pore 4, the guiding gutter of each valve retainer straight forming mould is interconnected by intercommunicating pore, guarantee stacked up and down dish type body alignment during installation mold, guiding gutter at the mould of the superiors during casting is installed cast gate, adopt can once the cast valve retainer of a plurality of dish type bodies of the mould of present embodiment, improve the once quantity of the valve retainer of casting, improved the efficient of producing greatly.
The manufacture method of valve retainer of the present invention and employed valve retainer straight forming mould thereof are with embodiment 1, and it is that the temperature that is adopted is 1475 ℃ that difference is to cast, and heat treatment is to quench 5 hours in 965 ℃, again in 700 ℃ of annealing 5 hours.
The manufacture method of valve retainer of the present invention and employed valve retainer straight forming mould thereof are with embodiment 1, and it is that the temperature that is adopted is 1500 ℃ that difference is to cast, and heat treatment is to quench 4 hours in 980 ℃, again in 700 ℃ of annealing 4 hours.
The material that the valve retainer straight forming mould that relates among the embodiment 1-4 is adopted is a precoated sand, can adopt the destructive demoulding during demoulding.Precoated sand is commercially available product.
Embodiments of the invention are the non-limiting technical scheme of the present invention in order to explanation only; the quantity of employed valve retainer straight forming mould can be made corresponding adjustment according to the casting amount in the valve retainer manufacture method of the present invention; this is conspicuous for those skilled in the art, therefore should fall into protection scope of the present invention.
Claims (8)
1. the manufacture method of a valve retainer is characterized in that, this step of manufacturing is as follows: cast gate is installed on mould, and Metal Melting, casting, the demoulding, heat treatment, grinding, the centre bore essence is dug; Described mould is a valve retainer straight forming mould.
2. manufacture method according to claim 1 is characterized in that: described valve retainer straight forming mould comprises the dish type body, offers annular groove on the card of dish type body.
3. manufacture method according to claim 2 is characterized in that: offer guiding gutter on the described dish type body, this guiding gutter is connected with described annular groove.
4. according to claim 1 or 2 or 3 described manufacture methods, it is characterized in that: described guiding gutter is provided with closing in the place of connection of annular groove.
5. manufacture method according to claim 1 is characterized in that: described cast temperature is 1450-1500 ℃.
6. manufacture method according to claim 1 is characterized in that: described heat treatment was annealed 4-6 hour in 700 ℃ in 950-980 ℃ of quenching 4-6 hour again.
7. valve retainer straight forming mould that manufacture method adopted according to claim 1, it is characterized in that: this mould comprises the dish type body, offer annular groove and guiding gutter on the card of this dish type body, this guiding gutter is connected with described annular groove.
8. mould according to claim 7 is characterized in that: described guiding gutter is provided with closing in the place of connection of annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103039445A CN101590586B (en) | 2009-07-02 | 2009-07-02 | Method and mould for manufacturing valve retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103039445A CN101590586B (en) | 2009-07-02 | 2009-07-02 | Method and mould for manufacturing valve retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101590586A true CN101590586A (en) | 2009-12-02 |
| CN101590586B CN101590586B (en) | 2011-10-26 |
Family
ID=41405574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103039445A Expired - Fee Related CN101590586B (en) | 2009-07-02 | 2009-07-02 | Method and mould for manufacturing valve retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101590586B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074478A (en) * | 2013-01-16 | 2013-05-01 | 江西樟树市福铃内燃机配件有限公司 | 'Two-time temperature control and one-time time control quenching' heat treatment process for cast alloy valve seat rings |
| CN104028708A (en) * | 2014-05-30 | 2014-09-10 | 安徽扬帆机械股份有限公司 | Mold for producing valve seat ring and application method thereof |
| CN104801677A (en) * | 2015-03-29 | 2015-07-29 | 安徽同丰橡塑工业有限公司 | Casting technology of valve seat ring |
| CN105385833A (en) * | 2015-12-14 | 2016-03-09 | 中国北方发动机研究所(天津) | Modifying, thermal-treatment and preheating device for valve seat ring of engine |
| CN107794459A (en) * | 2015-05-18 | 2018-03-13 | 夏志清 | A kind of cylinder cover of automobile engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4241492A (en) * | 1978-12-21 | 1980-12-30 | Wells Manufacturing Company | Process for manufacture of valve seat |
| CN201059209Y (en) * | 2007-06-30 | 2008-05-14 | 奇瑞汽车有限公司 | Engine valve seat insert structure |
| CN101358548A (en) * | 2008-08-20 | 2009-02-04 | 陈涛 | Valve retainer for automobile engine |
-
2009
- 2009-07-02 CN CN2009103039445A patent/CN101590586B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074478A (en) * | 2013-01-16 | 2013-05-01 | 江西樟树市福铃内燃机配件有限公司 | 'Two-time temperature control and one-time time control quenching' heat treatment process for cast alloy valve seat rings |
| CN104028708A (en) * | 2014-05-30 | 2014-09-10 | 安徽扬帆机械股份有限公司 | Mold for producing valve seat ring and application method thereof |
| CN104801677A (en) * | 2015-03-29 | 2015-07-29 | 安徽同丰橡塑工业有限公司 | Casting technology of valve seat ring |
| CN107794459A (en) * | 2015-05-18 | 2018-03-13 | 夏志清 | A kind of cylinder cover of automobile engine |
| CN107794459B (en) * | 2015-05-18 | 2019-05-24 | 南京市星淳机械有限公司 | A kind of cylinder cover of automobile engine |
| CN105385833A (en) * | 2015-12-14 | 2016-03-09 | 中国北方发动机研究所(天津) | Modifying, thermal-treatment and preheating device for valve seat ring of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101590586B (en) | 2011-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101590586B (en) | Method and mould for manufacturing valve retainer | |
| CN108160897B (en) | Large-scale inlaid type hot forged mould design and production method and large-scale inlaid type hot forged mould | |
| CN103100669B (en) | A kind of with flange casting bolt hole gate valve body composite pouring technique | |
| CN105081277A (en) | Low-pressure casting process of metal aluminium ring | |
| CN111558696B (en) | Forming method of ring-shaped steel casting | |
| CN104325091B (en) | A kind of method of casting of automobile hub and mould | |
| CN201982524U (en) | Water-cooling bearing base | |
| CN112658210A (en) | Sectional casting method for subway bogie special-shaped steel casting | |
| CN103480681A (en) | Mold structure for semi-hollow profile with high slenderness ratio and manufacturing method of mold structure | |
| CN107052239A (en) | The casting technique of small flow channels ironcasting | |
| CN102756101A (en) | Method for producing cylinder cover of compressor of heavy duty truck | |
| CN109465403B (en) | Casting process of low-flow casting of submersible pump | |
| CN104722709A (en) | Casting mold and casting plate | |
| CN109622648A (en) | A kind of magnesium alloy asymmetric continuous large deformation extrusion process forming method | |
| CN104043776B (en) | A kind of have the shell mould of lot number core, lot number mould and lot number manufacture method | |
| CN108927417A (en) | The hot-pressed mold of abnormity depth chamber labyrinth bracket and manufacturing process | |
| CN103599955A (en) | Structure of mold of large-scale flat wide thin-walled section bar, and manufacturing method of the mold | |
| CN201470828U (en) | Disc form core for manufacturing air valve seat ring and casting die by adopting the disc form core | |
| CN102205356A (en) | Cold extrusion die for double end pipe joint | |
| CN109290522A (en) | A kind of back oil road sand core of engine cylinder body casting | |
| CN202380266U (en) | Cylinder plate for napping machine | |
| CN201848503U (en) | Blade guide frame casting forming die | |
| CN208644024U (en) | A kind of hardened sand mould positioning pin with venting plug | |
| CN202684024U (en) | Die-casting die of air cylinder | |
| CN103464692A (en) | Casting method of tubular casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20130702 |