CN107116344A - One kind can empty pressure-reducing unloading valve and its manufacture method - Google Patents
One kind can empty pressure-reducing unloading valve and its manufacture method Download PDFInfo
- Publication number
- CN107116344A CN107116344A CN201710529098.3A CN201710529098A CN107116344A CN 107116344 A CN107116344 A CN 107116344A CN 201710529098 A CN201710529098 A CN 201710529098A CN 107116344 A CN107116344 A CN 107116344A
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- China
- Prior art keywords
- spring
- forging
- pressure
- copper base
- unloading valve
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
Abstract
Pressure-reducing unloading valve and its manufacture method can be emptied the present invention relates to one kind, including the unloading valve includes zinc-manganese brass off-load valve body, the pressure seat and position limiting structure that are matched with zinc-manganese brass off-load valve body, the spring of antifatigue impact resistance first and second spring, piston rod and the buffer unit for reversely rotating and being sleeved in the first spring with the first spring.There is the pressure-reducing unloading valve that empties of the present invention the first spring and same manufacture method using essential modification, surface enhanced and change material shape to reversely rotate the high security that second spring is organically combined.
Description
Technical field
Pressure-reducing unloading valve and its manufacture method can be emptied the present invention relates to control wetting system field, more particularly to one kind.
Background technology
Unloading valve is, by regulation, inlet pressure to be reduced to the outlet pressure of a certain needs, and the energy by medium in itself
Amount, makes outlet pressure keep stable valve automatically.From the viewpoint of hydrodynamics, pressure-reducing valve is that a local resistance can become
The restricting element of change, i.e., by changing orifice size, change the kinetic energy of flow velocity and fluid, cause the different pressure losses, from
And reach the purpose of decompression.Then by control and the regulation of regulating system, fluctuation and the first spring force phase of downstream pressure are made
Balance, makes downstream pressure keep constant in certain error range.
But which kind of structure no matter unloading valve of the prior art use, it can all be influenceed by the essential performance of the first spring,
Therefore, the antifatigue shock resistance of the first spring in itself is just even more important, and is generally changed in the prior art by the essence of material
Property and the mode such as shot blasting on surface increase antifatigue shock resistance, lift it specific not over the mode for changing material shape
Antifatigue impact resistance under operating mode.
The content of the invention
To solve drawbacks described above present in prior art, the present invention is intended to provide a kind of increased using essential modification, surface
The high security that the first spring and same manufacture method strong and that change material shape reversely rotate second spring combination can
Empty pressure-reducing unloading valve and its manufacture method.
In order to realize foregoing invention purpose, the present invention uses following technical scheme：One kind manufacture can empty pressure-reducing off-load
The method of valve, the unloading valve includes the pressure seat that is matched with zinc-manganese brass off-load valve body of zinc-manganese brass off-load valve body and spacing
Structure, the spring of antifatigue impact resistance first, the second spring for reversely rotating and being sleeved in the first spring with the first spring, suit
Piston rod and buffer unit in the first spring and second spring, wherein the manufacture method of the first spring includes following step
Suddenly：
1）Pre-preparation
1. it is spring raw material from beryllium-bronze QBe2.0 copper bases；
2. from the forging equipment for being provided with pressure hydraulic generator, rotation pusher and air cooling equipment；From vacuum resistance furnace
For the forging firing equipment that begins；
3. in 90 ° of forging tups and supporting hydraulic output device it is respectively in order finish-forging and folder between axis from being provided with four
Hold frock；Again from ceramic frock main body, damping liner plate and the support being arranged at the top of damping liner plate for including cone-shaped inner hole
Bar is frock of swaging；
2）Forging
1. beryllium-bronze QBe2.0 copper bases are heated above its theoretical AC by vacuum resistance furnace3120 DEG C ~ 130 DEG C of temperature value
Temperature, is incubated based on copper base diameter（15d）min/mm~（17d）Min/mm time, then come out of the stove, copper base bottom is fixed on
Rotate on pusher；
2. promoted by pressure hydraulic generator with rotating the forging tup that pusher links, to deform about 5% amount of feeding every time
Final deformation ratio with 40% ~ 45% becomes forging base of the copper base extruding for section squarish with the once forging for deforming copper base
Shape length is a forging cycle, completes forging tup after being forged for the last time in a cycle and is fixed on copper base surface as fixture
Use；
3. with 0.15mm/s ~ 0.19mm/s speed by the forging base of section squarish is in rotation pusher and forges tup
Promoted on the basis of linkage rotation along rotation axis into ceramic frock main body endoporus；
4. air cooling equipment is set in the exit of ceramic frock main body endoporus, with 3bar ~ 5bar pressure blowout nitrogen refrigeration；
5. repeat step 2. ~ 4. completed to the forging of whole copper base；
6. the copper base forged is used -85 ~ -75 DEG C in 10min after the completion of forging, is incubated the ice-cold processing of 1.5h ~ 2h；Then
Using 170 DEG C ~ 180 DEG C, it is incubated based on copper base diameter（15d）min/mm~（17d）Min/mm time, temper is carried out, is obtained
Spring needed for obtaining.
One kind can empty pressure-reducing unloading valve, including zinc-manganese brass off-load valve body and zinc-manganese brass off-load valve body
The pressure seat and position limiting structure matched somebody with somebody, the spring of antifatigue impact resistance first and reversely rotated with the first spring and be sleeved on the first spring
Interior second spring, the piston rod being sleeved in the first spring and second spring, it is carried at the top of the position limiting structure of piston rod bottom
Buffer unit.
Compared with prior art, the present invention has advantages below：Use more than the first spring spring is commonly used in routine techniques
Middle carbon alloy copper（Containing intensified elements such as Cr, Si, Mn, W, V）, austenite stainless copper etc., big-and-middle-sized environmental protection is ignored from material
The service life and corrosion resistance of water control equipment, it is main that function holding is carried out by the way of replacing accessory using constantly safeguarding, but with
Epoch derive and developed, this high-frequency of original technology safeguard and basic property shortcoming can no longer meet it is existing in,
There is long-life of the heavy duty industrial section control water field to unloading valve, high reliability request, beryllium-bronze QBe2.0 conventional material not have
Standby anti-corrosion capability and enough elastic limits, it is main to ask it that there is good anti-fatigue performance, though the material is commonly applied to
Unloading valve flexible member field, but spring manufacture is not used for, also never have tried to change its shape to be more suitable for unloading valve
Field, the mode that the present invention swages by using side turn circle hot extrusion makes that there is taper to rotate the forging stream inwardly tightened up in blank
Line, this is also not precedented in the prior art, and the part of swaging especially in forging process, which is provided with the present invention, to liquidate
Hit and tired specific aim（High-end unloading valve in routine techniques is general also only with hot forging acquisition linear pattern streamline, to performance
There are certain improvement but the specific aim without reply impact and fatigue）；Inventor has found beryllium-bronze in long-term practice simultaneously
QBe2.0 is different from other materials, higher than AC3120 DEG C ~ 130 DEG C of temperature value（The hardening heat of general material）When just have foot
Enough plasticity, and at this moment carry out thermal deformation, streamline, which changes, to be become apparent and rule, but soaking time must be compressed and will not just ftracture
And the generation that deformation also contributes to control internal fissure is carried out in the form of hydraulic means extruding, while hydraulic means extruding also makes
The temperature that material discharges in plastic deformation is more stable controllable（By deformation, material can be by heating from release heat）, make the beginning
Forge temperature compared to general forging more to stablize and accurate, also laid the foundation for swaging below；Blank is in during due to hot forging
It is square, easily clamp, when the tapered bore with ceramic frock main body contacts simultaneously rotary squeezing, the rotational deformation of square seamed edge is remote
More than the deformation of cylindrical blank so that the spring streamline curvature finally obtained bigger, angle of inclination is bigger；With simultaneously application it is another
A Single spring unloading valve is compared, invention increases the second spring of a set of reverse rotation, same using the high fatigue of high intensity
Swage spring, this be due to the present invention once enabling, illustrate that valve body has been up to pressure limit, it is necessary to urgent off-load to emptying
To unloading valve housing bottom, general Single spring can not individually bear so big pressure, i.e., can cause also to be not reaching to necessary
It is vented decompressor during the pressure of emptying to start, it will have a strong impact on the service life and performance of whole device；Also simultaneously
Reverse rotation suit dual spring is employed, on the one hand prevents elastic force because direction of rotation is consistent and causes axle center sideslip, the opposing party
Face also reduces the frictional force and extruding force interlocked between two springs.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
In figure：Zinc-manganese brass off-load valve body 1, pressure seat 2, the first spring 3, piston rod 4, buffer unit 5, position limiting structure 6,
Two springs 7.
Embodiment
Embodiment 1
A kind of manufacture can empty the method for pressure-reducing unloading valve, and the unloading valve includes zinc-manganese brass off-load valve body 1 and zinc-manganese is yellow
Pressure seat 2 and position limiting structure 6, the first spring of antifatigue impact resistance 3 and reverse with the first spring 3 that copper off-load valve body 1 is matched
The second spring 7 that rotates and be sleeved in the first spring 3, the piston rod 4 being sleeved in the first spring 3 and second spring 7 and
Buffer unit 5, wherein the manufacture method of the first spring 3 comprises the following steps：
1）Pre-preparation
1. it is spring raw material from beryllium-bronze QBe2.0 copper bases；
2. from the forging equipment for being provided with pressure hydraulic generator, rotation pusher and air cooling equipment；From vacuum resistance furnace
For the forging firing equipment that begins；
3. in 90 ° of forging tups and supporting hydraulic output device it is respectively in order finish-forging and folder between axis from being provided with four
Hold frock；Again from ceramic frock main body, damping liner plate and the support being arranged at the top of damping liner plate for including cone-shaped inner hole
Bar is frock of swaging；
2）Forging
1. beryllium-bronze QBe2.0 copper bases are heated above its theoretical AC by vacuum resistance furnace3The temperature that 40 DEG C of temperature value, is protected
Temperature is based on copper base diameter（16d）Min/mm time, then come out of the stove, copper base bottom is fixed on rotation pusher；
2. promoted by pressure hydraulic generator with rotating the forging tup that pusher links, to deform about 5% amount of feeding every time
With 45% final deformation ratio by copper base extrude for section squarish forging base, it is long with a forging deformation for deforming copper base
Spend for a forging cycle, complete forging tup after last time is forged in a cycle and be fixed on copper base surface to make as fixture
With；
3. with 0.18mm/s speed by the forging base of section squarish is in rotation pusher and forges tup linkage rotation
On the basis of promoted along rotation axis into ceramic frock main body endoporus；
4. air cooling equipment is set in the exit of ceramic frock main body endoporus, with 4bar pressure blowout nitrogen refrigeration；
5. repeat step 2. ~ 4. completed to the forging of whole copper base；
6. the copper base forged is used -85 DEG C in 10min after the completion of forging, is incubated the ice-cold processing of 2h；Then 175 are used
DEG C, it is incubated based on copper base diameter（16d）Min/mm time, temper is carried out, spring needed for obtaining.
What the first spring produced according to the above method was assembled empties pressure-reducing unloading valve, including zinc-manganese brass off-load
Valve body 1, the pressure seat 2 and position limiting structure 6 that are matched with zinc-manganese brass off-load valve body 1, the first spring of antifatigue impact resistance 3 and
The second spring 7 that reversely rotates and be sleeved in the first spring 3 with the first spring 3, it is sleeved on the first spring 3 and second spring 7
Interior piston rod 4, the buffer unit 5 for being carried on the top of 4 bottom position limiting structure of piston rod 6.
Embodiment 2
It is overall consistent with embodiment 1, it is in place of difference：
The manufacture method of first spring 3 comprises the following steps：
1. beryllium-bronze QBe2.0 copper bases are heated above its theoretical AC by vacuum resistance furnace3The temperature that 120 DEG C of temperature value, is protected
Temperature is based on copper base diameter（15d）Min/mm time, then come out of the stove, copper base bottom is fixed on rotation pusher；
2. promoted by pressure hydraulic generator with rotating the forging tup that pusher links, to deform about 5% amount of feeding every time
With 40% final deformation ratio by copper base extrude for section squarish forging base, it is long with a forging deformation for deforming copper base
Spend for a forging cycle, complete forging tup after last time is forged in a cycle and be fixed on copper base surface to make as fixture
With；
3. with 0.15mm/s speed by the forging base of section squarish is in rotation pusher and forges tup linkage rotation
On the basis of promoted along rotation axis into ceramic frock main body endoporus；
4. air cooling equipment is set in the exit of ceramic frock main body endoporus, with 3bar pressure blowout nitrogen refrigeration；
6. the copper base forged is used -75 DEG C in 10min after the completion of forging, is incubated the ice-cold processing of 1.5h；Then 170 are used
DEG C, it is incubated based on copper base diameter（15d）Min/mm time, temper is carried out, spring needed for obtaining.
Embodiment 3
It is overall consistent with embodiment 1, it is in place of difference：
The manufacture method of first spring 3 comprises the following steps：
1. beryllium-bronze QBe2.0 copper bases are heated above its theoretical AC by vacuum resistance furnace3The temperature that 130 DEG C of temperature value, is protected
Temperature is based on copper base diameter（17d）Min/mm time, then come out of the stove, copper base bottom is fixed on rotation pusher；
2. promoted by pressure hydraulic generator with rotating the forging tup that pusher links, to deform about 5% amount of feeding every time
With 45% final deformation ratio by copper base extrude for section squarish forging base, it is long with a forging deformation for deforming copper base
Spend for a forging cycle, complete forging tup after last time is forged in a cycle and be fixed on copper base surface to make as fixture
With；
3. with 0.19mm/s speed by the forging base of section squarish is in rotation pusher and forges tup linkage rotation
On the basis of promoted along rotation axis into ceramic frock main body endoporus；
4. air cooling equipment is set in the exit of ceramic frock main body endoporus, with 5bar pressure blowout nitrogen refrigeration；
6. the copper base forged is used -85 DEG C in 10min after the completion of forging, is incubated the ice-cold processing of 2h；Then 180 are used
DEG C, it is incubated based on copper base diameter（17d）Min/mm time, temper is carried out, spring needed for obtaining.
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this
Invention.A variety of modifications to these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (2)
1. a kind of manufacture can empty the method for pressure-reducing unloading valve, the unloading valve includes zinc-manganese brass off-load valve body (1) and zinc
The pressure seat (2) and position limiting structure (6) of manganese brass off-load valve body (1) matching, the spring of antifatigue impact resistance first (3) and with the
Second spring (7), piston rod (4) and buffer unit (5) that one spring (3) is reversely rotated and is sleeved in the first spring (3),
It is characterized in that：The manufacture method of spring comprises the following steps used in wherein the first spring (3) and second spring (7)：
1）Pre-preparation
1. it is spring raw material from beryllium-bronze QBe2.0 copper bases；
2. from the forging equipment for being provided with pressure hydraulic generator, rotation pusher and air cooling equipment；From vacuum resistance furnace
For the forging firing equipment that begins；
3. in 90 ° of forging tups and supporting hydraulic output device it is respectively in order finish-forging and folder between axis from being provided with four
Hold frock；Again from ceramic frock main body, damping liner plate and the support being arranged at the top of damping liner plate for including cone-shaped inner hole
Bar is frock of swaging；
2）Forging
1. beryllium-bronze QBe2.0 copper bases are heated above its theoretical AC by vacuum resistance furnace3The temperature that 120 DEG C ~ 130 DEG C of temperature value
Degree, is incubated based on copper base diameter（15d）min/mm~（17d）Min/mm time, then come out of the stove, rotation is fixed in copper base bottom
Turn on pusher；
2. promoted by pressure hydraulic generator with rotating the forging tup that pusher links, to deform about 5% amount of feeding every time
Final deformation ratio with 40% ~ 45% becomes forging base of the copper base extruding for section squarish with the once forging for deforming copper base
Shape length is a forging cycle, completes forging tup after being forged for the last time in a cycle and is fixed on copper base surface as fixture
Use；
3. with 0.15mm/s ~ 0.19mm/s speed by the forging base of section squarish is in rotation pusher and forges tup
Promoted on the basis of linkage rotation along rotation axis into ceramic frock main body endoporus；
4. air cooling equipment is set in the exit of ceramic frock main body endoporus, with 3bar ~ 5bar pressure blowout nitrogen refrigeration；
5. repeat step 2. ~ 4. completed to the forging of whole copper base；
6. the copper base forged is used -85 ~ -75 DEG C in 10min after the completion of forging, is incubated the ice-cold processing of 1.5h ~ 2h；Then
Using 170 DEG C ~ 180 DEG C, it is incubated based on copper base diameter（15d）min/mm~（17d）Min/mm time, temper is carried out, is obtained
Spring needed for obtaining.
2. one kind can empty pressure-reducing unloading valve, it is characterised in that：The unloading valve include zinc-manganese brass off-load valve body (1), with
Zinc-manganese brass off-load valve body (1) matching pressure seat (2) and position limiting structure (6), the spring of antifatigue impact resistance first (3) and with
First spring (3) reversely rotate and be sleeved in the first spring (3) second spring (7), be sleeved on the first spring (3) and second
Piston rod (4) in spring (7), the buffer unit (5) being carried at the top of piston rod (4) bottom position limiting structure (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529098.3A CN107116344A (en) | 2017-07-01 | 2017-07-01 | One kind can empty pressure-reducing unloading valve and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529098.3A CN107116344A (en) | 2017-07-01 | 2017-07-01 | One kind can empty pressure-reducing unloading valve and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107116344A true CN107116344A (en) | 2017-09-01 |
Family
ID=59731258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529098.3A Pending CN107116344A (en) | 2017-07-01 | 2017-07-01 | One kind can empty pressure-reducing unloading valve and its manufacture method |
Country Status (1)
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| CN (1) | CN107116344A (en) |
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|---|---|---|---|---|
| US2666723A (en) * | 1951-12-19 | 1954-01-19 | Associated Spring Corp | Method of manufacturing helical coil compression springs |
| CN101698206A (en) * | 2009-10-27 | 2010-04-28 | 宝鸡市巨成钛业有限责任公司 | Technique for producing titanium-copper compound wire |
| CN102537162A (en) * | 2012-01-06 | 2012-07-04 | 北京科技大学 | Spring with stiffness coefficient controlled by magnitude field and preparation method thereof |
| CN104475621A (en) * | 2014-10-23 | 2015-04-01 | 贵州红林机械有限公司 | Multi-layer wave spring winding device and winding method |
| CN105443770A (en) * | 2015-12-01 | 2016-03-30 | 中国重型机械研究院股份公司 | Separation type gas-control high-temperature pulse valve |
| CN106834794A (en) * | 2017-03-09 | 2017-06-13 | 苏州金江铜业有限公司 | A kind of tellurium beallon and preparation method thereof |
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Application publication date: 20170901 |
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