CN203879566U - Plate end airtight hollow sodium-inflation valve - Google Patents
Plate end airtight hollow sodium-inflation valve Download PDFInfo
- Publication number
- CN203879566U CN203879566U CN201420300663.0U CN201420300663U CN203879566U CN 203879566 U CN203879566 U CN 203879566U CN 201420300663 U CN201420300663 U CN 201420300663U CN 203879566 U CN203879566 U CN 203879566U
- Authority
- CN
- China
- Prior art keywords
- valve
- face
- airtight cover
- sodium
- airtight
- 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.)
- Expired - Lifetime
Links
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 22
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 22
- 239000011734 sodium Substances 0.000 claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 13
- 150000004767 nitrides Chemical class 0.000 claims description 10
- 229910000753 refractory alloy Inorganic materials 0.000 claims description 10
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002360 explosive Substances 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000011324 bead Substances 0.000 abstract 3
- 238000006396 nitration reaction Methods 0.000 abstract 2
- 239000002826 coolant Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 240000002234 Allium sativum Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000004611 garlic Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000659 freezing mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a plate end airtight hollow sodium-inflation valve, belongs to an explosive motor valve and particularly relates to the hollow sodium-inflation valve with sodium as a cooling agent. The plate end airtight hollow sodium-inflation valve comprises a valve rod part and a valve retainer part. A center hole of the valve rod part and a bottom pit in a valve retainer part are filled with sodium, the bottom pit in the valve retainer part is internally provided with three steps which are the drilling platform step, an installation airtight cover step and a bead weld step respectively from bottom to top, and a groove formed by a valve retainer end face and a plate end face airtight cover is internally provided with high-temperature alloy in a bead weld mode. The surface of the valve rod part and the surface of the valve retainer part are provided with chromium layers or nitration layers, and a plate conical face is provided with a high-temperature alloy layer or a nitration layer. The plate end airtight hollow sodium-inflation valve has the advantages that the plate end face airtight cover is pressed into the steps of the bottom pit, the groove formed by the valve retainer end face and the plate end airtight cover is internally provided with the high-temperature alloy in the bead weld mode, the process circuit is simple, manufacturing cost is low, the sodium inflation amount is large, the working temperature of the valve can be lowered, the size of the bottom pit can be increased, the weight of the valve can be reduced, and the use reliability of the valve can be improved.
Description
Technical field
The utility model belongs to explosive motor valve, particularly uses the hollow valve filled with sodium that sodium is freezing mixture.
Background technique
Conventionally along with various countries to motor vehicle emission require more and more higher, each motor corporation is to the requirement of motor also corresponding raising, at valve product expression out, and the increasing of the lightweight of valve and working temperature of valve, therefore, require valve will reduce weight and reduce valve self operating temperature.A kind of novel hollow valve filled with sodium starts to apply in recent years, various countries scientific and technical personnel have proposed a lot of technological schemes for hollow valve filled with sodium, GB595015 discloses a kind of manufacture method of hollow valve filled with sodium, the method adopts a columniform blank heating, by the mould with mandrel, blank is repeatedly pushed to obtain first blank and the endoporus of valve, then change different upper/lower dies, and established first blank is heated and forges to obtain the blank of valve, then valve endoporus is cleaned and dried, be filled with sodium metal, finally adopt cap that endoporus is sealed.In the manufacture method of the hollow engine valve of the hollow portion that the manufacture method that CN103403305A discloses hollow engine valve forms at the wide diameter portion having from axial region to valve head, comprise: the valve body of hollow engine valve is partly completed to product (10) and be rotated plastic working, thereby make the rotation plastic working operation of axial region undergauge, wherein, the valve body of this hollow engine valve partly completes product (10) and is made up of with the valve head forming section (12) being connected with axial region axial region (11), and be formed with the hole portion (13) of cylindrical shape from axial region to the wide diameter portion of valve head forming section, and then this rotation plastic working operation, the necking down manufacturing procedure of carrying out necking down and process the external diameter and the internal diameter undergauge that make axial region by the valve body of described hollow engine valve partly being completed to product, and this necking down manufacturing procedure and then, by the front end of axial region being sealed to obtain the sealing process of hollow engine valve.These method manufacturing procedures are numerous and diverse, nest space, the end is little, Chinese patent application 201120224645.5 discloses a kind of bore mode of Novel hollow valve filled with sodium for start boring from valve stem end face, is filled with sodium metal and adopts plug that endoporus is sealed from valve stem end face after boring; But the bottomless nest of this hollow valve filled with sodium dish end, it is little that valve Heavy Weight fills sodium amount.
Model utility content
The purpose of this utility model is to provide the airtight hollow valve filled with sodium of a kind of dish end.
The technical solution of the utility model is that a kind of dish is held airtight hollow valve filled with sodium.Comprise engine valve stem and Valve Disc, at the bottom of the center hole of engine valve stem and Valve Disc, in nest, be filled with sodium metal, at the bottom of Valve Disc, in nest, be provided with three steps, in the groove that be respectively drilling platform step from bottom to top, airtight cover step is installed, valve retainer end face and dish end face airtight cover forms, heap is welded with refractory alloy, engine valve stem and Valve Disc surface are provided with chromium coating or nitride layer, for coiling the conical surface with refractory alloy layer or nitride layer, nitride layer or chromium coating thickness are 0.01mm, and overlay cladding thickness is 0.5mm.
The diameter of described drilling platform step is 1.5-1.7 times of valve center-hole diameter, its diameter of airtight cover step is installed identical with valve retainer end face airtight cover diameter, its diameter of built-up welding step is greater than valve retainer end face airtight cover diameter 1-2mm, airtight cover step and the height of built-up welding step and identical with dish end face airtight cover height are installed, install in airtight cover step and be installed with and coil end face airtight cover, dish end face airtight cover is that cylindrical top surface edge has width 1-2mm, the annular breach of height 1-2mm.
This dish is held the making method of airtight hollow valve filled with sodium, it is characterized in that: comprise the steps: A. electricity pier, to intercept elongated bar according to the bar portion diameter of valve finished product and gross weight, make electricity consumption pier machine that bar one end is heated to 1100 ± 50 DEG C of left and right on one side, on one side under cylinder promotes, form one end be spherical be the pre-blank of head of garlic shape
B. use forging equipment that pre-blank is once forged into valve blank shape, the center, bottom plane of the upper die tooling of described forging equipment is with mould bulb, the inner chamber of bed die is consistent with valve external frame, because being provided with mould bulb, the upper die tooling using can in the dish end of valve blank, forge and press out end nest
C. use turning equipment to process three steps in the nest of valve blank dish bottom, be respectively its diameter of drilling platform step from bottom to top and be 1.5-1.7 times of valve center-hole diameter, its diameter of airtight cover step is installed identical with valve retainer end face airtight cover diameter, its diameter of built-up welding step is greater than valve retainer end face airtight cover diameter 1-2mm, airtight cover step and the height of built-up welding step and identical with dish end face airtight cover height are installed
D. drill centers, uses drill gun, starts to engine valve stem boring from dish end face drilling platform step,
E. clean endoporus, fill sodium, use cleaning equipment to clean after valve endoporus is dried and be filled with sodium metal,
F. built-up welding, dish end face airtight cover is pressed into end nest step, then built-up welding refractory alloy in the groove of valve retainer end face and the formation of dish end face airtight cover, so that valve retainer end face is indissoluble and endoporus is airtight with dish end face airtight cover, prevent that sodium metal from leaking in valve working procedure, described dish end face airtight cover is that cylindrical top surface edge has width 1-2mm, the annular breach of height 1-2mm
G. surface treatment, adopts chromium plating, nitrogenize and built-up welding refractory alloy to process to improve the hardness of engine valve stem surface and the dish conical surface.
The utility model adopts an elongated bar is formed to a pre-blank that bar one end is " head of garlic " shape by electric upsetting, then by forging process, valve is is once forged and pressed to exhaust valve blank shape, valve blank forming process is the condition of high temperature, process route is simple, low cost of manufacture, efficiency is high.The utility model adopts deep hole gun drill to process valve endoporus, can ensure the diameter of endoporus, the degree of depth of endoporus, the roughness of endoporus, the coaxality of endoporus, the uniformity of wall thickness, and processing beat is fast, and efficiency is high, and cost is low.The utility model adopts step method at dish end face airtight cover and valve weld, has reduced weld defects, and weld strength is high.
The beneficial effects of the utility model are that dish end face airtight cover is pressed into end nest step, then built-up welding refractory alloy in the groove of valve retainer end face and the formation of dish end face airtight cover, process route is simple, low cost of manufacture, fill sodium amount many, can reduce working temperature of valve, increase end nest volume, both the weight of valve can be reduced, the operational safety of valve can be improved again.
Brief description of the drawings
Fig. 1 is the airtight hollow valve filled with sodium each several part schematic diagram of dish end,
Fig. 2 is nest step schematic diagram at the bottom of Valve Disc in Fig. 1,
Fig. 3 is Fig. 1 mid-game end face airtight cover schematic diagram.
In figure, 1. hollow valve, 2. dish end face airtight cover, 3. refractory alloy, 4. sodium metal, 5. chrome-faced layer or nitride layer, 17. built-up welding steps, 18. install sealing cover step, nest at the bottom of 19. valves, 20. drilling platform steps,
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Embodiment 1, and a kind of dish that uses the making method of the airtight hollow valve filled with sodium of dish end to make is held airtight hollow valve filled with sodium.Comprise engine valve stem and Valve Disc, at the bottom of the center hole of engine valve stem and Valve Disc, in nest, be filled with sodium metal, at the bottom of Valve Disc, in nest, be provided with three steps, in the groove that be respectively drilling platform step from bottom to top, airtight cover step is installed, valve retainer end face and dish end face airtight cover forms, heap is welded with refractory alloy, engine valve stem and Valve Disc surface are provided with chromium coating or nitride layer, for coiling the conical surface with refractory alloy layer or nitride layer, nitride layer or chromium coating thickness are 0.01mm, and overlay cladding thickness is 0.5mm.
The diameter of described drilling platform step is 1.5-1.7 times of valve center-hole diameter, its diameter of airtight cover step is installed identical with valve retainer end face airtight cover diameter, its diameter of built-up welding step is greater than valve retainer end face airtight cover diameter 1-2mm, airtight cover step and the height of built-up welding step and identical with dish end face airtight cover height are installed, install in airtight cover step and be installed with and coil end face airtight cover, dish end face airtight cover is that cylindrical top surface edge has width 1-2mm, the annular breach of height 1-2mm.
Claims (2)
1. the airtight hollow valve filled with sodium of dish end, it is characterized in that: comprise engine valve stem and Valve Disc, at the bottom of the center hole of engine valve stem and Valve Disc, in nest, be filled with sodium metal, at the bottom of Valve Disc, in nest, be provided with three steps, be respectively drilling platform step from bottom to top, airtight cover step is installed, in the groove that valve retainer end face and dish end face airtight cover form, heap is welded with refractory alloy, engine valve stem and Valve Disc surface are provided with chromium coating or nitride layer, for coiling the conical surface with refractory alloy layer or nitride layer, nitride layer or chromium coating thickness are 0.01mm, overlay cladding thickness is 0.5mm.
2. dish according to claim 1 is held airtight hollow valve filled with sodium, it is characterized in that: the diameter of described drilling platform step is 1.5-1.7 times of valve center-hole diameter, its diameter of airtight cover step is installed identical with valve retainer end face airtight cover diameter, its diameter of built-up welding step is greater than valve retainer end face airtight cover diameter 1-2mm, airtight cover step and the height of built-up welding step and identical with dish end face airtight cover height are installed, install in airtight cover step and be installed with and coil end face airtight cover, dish end face airtight cover is that cylindrical top surface edge has width 1-2mm, the annular breach of height 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300663.0U CN203879566U (en) | 2014-06-06 | 2014-06-06 | Plate end airtight hollow sodium-inflation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300663.0U CN203879566U (en) | 2014-06-06 | 2014-06-06 | Plate end airtight hollow sodium-inflation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879566U true CN203879566U (en) | 2014-10-15 |
Family
ID=51680073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420300663.0U Expired - Lifetime CN203879566U (en) | 2014-06-06 | 2014-06-06 | Plate end airtight hollow sodium-inflation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879566U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283131A (en) * | 2017-08-21 | 2017-10-24 | 济南沃德汽车零部件有限公司 | The manufacture method of head hollow valve |
| CN109026253A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | The sodium filling valve of large diesel engine |
| CN109664079A (en) * | 2019-02-20 | 2019-04-23 | 华南理工大学 | A kind of nominal valve and its manufacturing method containing internal stiffeners |
| CN112752895A (en) * | 2018-11-12 | 2021-05-04 | 日锻汽门株式会社 | Method for manufacturing poppet valve of engine |
-
2014
- 2014-06-06 CN CN201420300663.0U patent/CN203879566U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283131A (en) * | 2017-08-21 | 2017-10-24 | 济南沃德汽车零部件有限公司 | The manufacture method of head hollow valve |
| CN109026253A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | The sodium filling valve of large diesel engine |
| CN112752895A (en) * | 2018-11-12 | 2021-05-04 | 日锻汽门株式会社 | Method for manufacturing poppet valve of engine |
| CN112752895B (en) * | 2018-11-12 | 2023-10-13 | 日锻株式会社 | Method for manufacturing poppet valve of engine |
| CN109664079A (en) * | 2019-02-20 | 2019-04-23 | 华南理工大学 | A kind of nominal valve and its manufacturing method containing internal stiffeners |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |