CN104550733B - Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation - Google Patents
Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation Download PDFInfo
- Publication number
- CN104550733B CN104550733B CN201510016475.4A CN201510016475A CN104550733B CN 104550733 B CN104550733 B CN 104550733B CN 201510016475 A CN201510016475 A CN 201510016475A CN 104550733 B CN104550733 B CN 104550733B
- Authority
- CN
- China
- Prior art keywords
- wax
- shell
- temperature
- stained
- pattern
- 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 - Fee Related
Links
- 238000005266 casting Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005554 pickling Methods 0.000 claims abstract description 4
- 238000012805 post-processing Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 15
- 239000002893 slag Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 239000002344 surface layer Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000080 wetting agent Substances 0.000 claims description 7
- 241001622925 Acacia coriacea Species 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 241001477873 Cornus sanguinea Species 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 3
- 241000220317 Rosa Species 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 239000006052 feed supplement Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of composite casting technology preventing low-temperature brake valve valve gap neck deformation, comprise the following steps: A, making wax pattern；B, manufacture shell；C, Baking；D, melting and cast；E, post processing: carry out conventional cutting, polish, be heat-treated, pickling, ball blast operation.Use the above-mentioned composite casting technology preventing low-temperature brake valve valve gap neck deformation can time this series products in casting process, reduce deformation probability and number of times, improve product percent of pass.
Description
Technical field
The present invention relates to a kind of composite casting technology preventing low-temperature brake valve valve gap neck deformation, particularly relate to a kind of bore
The composite manufacturing technology of the low-temperature brake valve valve gap within 400.
Background technology
Owing to low-temperature brake valve valve gap needs to use (detection temperature to be met is-240 DEG C) at low ambient temperatures, for
This, on valve gap, end support all uses integrated casting structure, and its support typically will not be less than 50 centimetres.Therefore, either silicon is molten
In the step of glue hot investment casting or waterglass composite casting, wax part moulding, manufacture shell, burn shell and pour into a mould in these links slightly
Have accidentally will result in valve gap inner chamber and valve gap be connected with support end (i.e. valve gap neck) deformation, due to the spy of its structure after deformation
Different property, shaping afterwards is the most invalid, causes the disqualification rate of product when by conventional fine casting technique to can not get effectively controlling
System.
Summary of the invention
In view of the deficiency of background technology, the technical problem to be solved is to provide one and is possible to prevent low-temperature brake valve
The composite casting technology preventing low-temperature brake valve valve gap neck deformation of valve gap neck deformation.
To this end, the technical scheme is that the composite casting technology preventing low-temperature brake valve valve gap neck deformation, its feature
It is: comprise the following steps:
A, making wax pattern
1) wax room indoor temperature will be penetrated and control at 24 ± 3 DEG C, by wax rifle be directed at mould casting hole, open valve by 45 DEG C-
The slack wax pressure injection of 48 DEG C is in mold cavity, and slack wax Pressure Casting is 0.3-0.5MPa, and the pressurize 5-10 second, makes slack wax press completely
Enter each corner of die cavity, close valve, mold removal, and mould is put in the frozen water of 1 DEG C-5 DEG C, allow slack wax at die cavity
Interior quickly cooling, then form removal, taking-up wax pattern was put into and was continued in frozen water to cool down at 5-10 minute cool time；
2) wax pattern is repaired: use special wax spatula of repairing to go fash and other unnecessary projections of dewaxing surface or inner chamber,
And fill up wax pattern rejected region with dilute wax, and wiping is smooth, adapted acetone wiping if desired, it is qualified to clean out afterwards and detect
After, carry out wax pattern assembling；
3) wax pattern group tree: during group tree, between wax-pattern, minimal gaps must control at more than 15MM, wax-pattern ingate and wax-pattern it
Between welding want tight, must not have spine and gap；
B, manufacture shell
1) temperature of surface layer room is controlled at≤65 DEG C, first add Ludox during configuration surface layer, then it is moistening to be gradually added JFC
Agent, the quality of JFC wetting agent accounts for the 0.3%-0.5% of gross mass, JFC wetting agent and is mixed and stirred for uniformly, being eventually adding with zirconium powder
Account for the defoamer that gross mass is 0.15%-2%；
2) the whole virgin material of surface layer should stir more than 24 hours, measures surface layer viscosity every day, with domestic No. 4 cups during measurement viscosity
Measure, should be controlled in regulation range of viscosities, Ludox surface layer ＞ drying time 8 hours, transition zone and the operation of backing layer
Space temperature is maintained at≤50 DEG C, ＞ drying time 12 hours；
3) necessarily see the most dried when being stained with transition zone, and preimpregnation must be carried out, make shell be not easy layering, and be stained with
Degree must assure that at 20 ± 2 seconds；
4) when being stained with more than three layers, must adjust viscosity, degree of being stained with must assure that at 13 ± 2 seconds；
5) being stained with more than five layers and use waterglass coating, proportioning is allocated in the ratio of powder liquid quality 1:1, and degree of being stained with must assure that 30
± 2 seconds, hardening bath aluminium chloride density was 1.8-1.2, and firm time is about 1 hour, and more than seven layers must extend firm time；
6) shell is made: valve gap neck and top screws lead to the hole site are stained with after slurry must be with iron wire or peg wood by unnecessary slurries
Scrape off, prevent blocking；Meanwhile, in order to strengthen investment shell intensity in shell processed, clockwise with No. six iron wire cisoid shells when being stained with layer 5
Carry out systematicness and be wound around reinforcing, then presoak, be stained with slurry, be stained with sand, dry and follow-up dewaxing, must incite somebody to action with iron wire or peg wood after being stained with slurry
Unnecessary slurries scrape off, prevent betting contest and with No. six iron wire cisoid shells carry out clockwise systematicness be wound around reinforce operation be all and other
Part process for making shell is different, be prevent low-temperature brake valve lid neck deformation meet twice critical process in casting technique；
C, Baking
1), clean out shell and water peristoma, be strictly on guard against that the foreign material such as sand are fallen in shell；2), carefully by shell cup to
Lower inversion, loads in roaster, sets sintering temperature by technological requirement, during temperature to 600 DEG C, closes fire door (mainly for the
One stove), roasting shell is white or rose look；E, roasting to coordinate with melting, it is ensured that during cast, and shell reaches cast
Require that temperature is 1050 DEG C-1100 DEG C, temperature retention time >=1.5 hour；
D, melting and cast
1) dispensing: a, mill run dispensing virgin material: foundry returns >=2:3；Converted products dispensing virgin material: foundry returns
>=1:1；C, remarks: all enter furnace charge requirement be maintained in the clean condition, substantially carry out non-corroding, without greasy dirt, no-sundries, without sand slag or
Globule attachment or phenomenon of making moist；First virgin material good for bundling is added during charging and dissolve, add foundry returns afterwards；
2) stainless steel melting: a such as 304,316,80% load melting after, add electrolysis ferromanganese 400g pre-deoxidation, be subsequently adding
Aluminum strip 200g, slag making removes the gred, sampling block chemical examination；After b, chemical examination, carrying out feed supplement according to lacked element, treat 100% fusing, temperature exists
1550 DEG C-1580 DEG C, reduce EF power and carry out expanding deoxidation to 80KW, addition multi-element composite deoxidant 800g, and covering removes
Slag agent 2-3 minute, terminates to understand slag, then covers deslagging agent, slag making deslagging, sample examination, until the most qualified；C, close completely
After lattice, improve power and be warmed up to about 1600 DEG C, add 400g multi-element composite deoxidant, and cover deslagging agent simultaneously, close electricity
Source stands, and makes foreign material in molten steel float, skims 3-4 time rapidly, and when survey molten steel temperature is suitable for pouring temperature, quickly insulation has been tapped
Become cast, pay special attention to during cast: flume must clean, smooth, without steam, when lifting with parcel must elder generation fire good；
E, post processing: carry out conventional cutting, polish, be heat-treated, pickling, ball blast operation.
The composite casting technology preventing low-temperature brake valve valve gap neck deformation that the present invention provides, can reduce low-temperature brake valve valve
The high defect rate that lid brings because of neck deformation, such that it is able to improve production efficiency, reduces manufacturing cost.
Detailed description of the invention
The composite casting technology preventing low-temperature brake valve valve gap neck deformation that the present invention provides, comprises the following steps:
A, making wax pattern
1) wax room indoor temperature will be penetrated and control at 24 ± 3 DEG C, by wax rifle be directed at mould casting hole, open valve by 45 DEG C-
The slack wax pressure injection of 48 DEG C is in mold cavity, and slack wax Pressure Casting is 0.3-0.5MPa, and the pressurize 5-10 second, makes slack wax press completely
Enter each corner of die cavity, close valve, mold removal, and mould is put in the frozen water of 1 DEG C-5 DEG C, allow slack wax at die cavity
Interior quickly cooling, then form removal, taking-up wax pattern was put into and was continued in frozen water to cool down at 5-10 minute cool time；
2) wax pattern is repaired: use special wax spatula of repairing to go fash and other unnecessary projections of dewaxing surface or inner chamber,
And fill up wax pattern rejected region with dilute wax, and wiping is smooth, adapted acetone wiping if desired, it is qualified to clean out afterwards and detect
After, carry out wax pattern assembling；
3) wax pattern group tree: during group tree, between wax-pattern, minimal gaps must control at more than 15MM, wax-pattern ingate and wax-pattern it
Between welding want tight, must not have spine and gap, strictly must organize tree requirement by engineer when assembling wax-pattern and technological specification enters
OK, the phenomenons such as wax oozes must not be had to occur；
B, manufacture shell
1) temperature of surface layer room is controlled at≤65 DEG C, first add Ludox during configuration surface layer, then it is moistening to be gradually added JFC
Agent, the quality of JFC wetting agent accounts for the 0.3%-0.5% of gross mass, JFC wetting agent and is mixed and stirred for uniformly, being eventually adding with zirconium powder
Account for the defoamer that gross mass is 0.15%-2%；
2) the whole virgin material of surface layer should stir more than 24 hours, measures surface layer viscosity every day, with domestic No. 4 cups during measurement viscosity
Measure, should be controlled in regulation range of viscosities, Ludox surface layer ＞ drying time 8 hours, transition zone and the operation of backing layer
Space temperature is maintained at≤50 DEG C, ＞ drying time 12 hours；
3) necessarily see the most dried when being stained with transition zone, and preimpregnation must be carried out, make shell be not easy layering, and be stained with
Degree must assure that at 20 ± 2 seconds；
4) when being stained with more than three layers, must adjust viscosity, degree of being stained with must assure that at 13 ± 2 seconds；
5) being stained with more than five layers and use waterglass coating, proportioning is allocated in the ratio of powder liquid quality 1:1, and degree of being stained with must assure that 30
± 2 seconds, hardening bath aluminium chloride density was 1.8-1.2, and firm time is about 1 hour, and more than seven layers must extend firm time；
6) shell is made: valve gap neck and top screws lead to the hole site are stained with after slurry must be with iron wire or peg wood by unnecessary slurries
Scrape off, prevent blocking (to note, mainly for flame being made to penetrate roasting from through hole during considering Baking, make shell
Roasting process is heated evenly, improves roasting and moulding by casting quality)；Meanwhile, in order to strengthen investment shell intensity in shell processed, it is being stained with
Carry out systematicness clockwise with No. six iron wire cisoid shells during layer 5 to be wound around and reinforce, then presoak, be stained with slurry, be stained with sand, dry and after
Unnecessary slurries must be scraped off after being stained with slurry by continuous dewaxing with iron wire or peg wood, prevent betting contest and clockwise with No. six iron wire cisoid shells
It is all different with other part process for making shell for carry out systematicness being wound around reinforcing operation, is and prevents low-temperature brake valve lid neck deformation
Meet twice critical process in casting technique；
C, Baking
1), first checking that roaster and control instrument are the most normal before roasting, table is the most smooth totally, and flue is the most suitable
Freely；Detection shell the most perfect fall into, defective shell must be repaired completely, it is impossible to repairing scrap process；Cleaning is dry
Clean shell waters peristoma, is strictly on guard against that the foreign material such as sand are fallen in shell；2), carefully shell cup is inverted downwards, loads roaster
In, set sintering temperature by technological requirement, during temperature to 600 DEG C, close fire door (mainly for the first stove), roasting shell
White or rose look；E, roasting to coordinate with melting, it is ensured that during cast, shell reach cast requirement temperature 1050 DEG C-
1100 DEG C, temperature retention time >=1.5 hour；
D, melting and cast
1) check that the working of a furnace is the best, if furnace lining or stove neck need to repair, then repaired with refractory material, repair stream steel
Groove location must be mended real, smooth, will toast patched furnace lining, flume；
2) dispensing: a, mill run dispensing virgin material: foundry returns >=2:3；Converted products dispensing virgin material: foundry returns
>=1:1；C, remarks: all enter furnace charge requirement be maintained in the clean condition, substantially carry out non-corroding, without greasy dirt, no-sundries, without sand slag or
Globule attachment or phenomenon of making moist；First virgin material good for bundling is added during charging and dissolve, add foundry returns afterwards；
3) stainless steel melting: a such as 304,316,80% load melting after, add electrolysis ferromanganese 400g pre-deoxidation, be subsequently adding
Aluminum strip 200g, slag making removes the gred, sampling block chemical examination；After b, chemical examination, carrying out feed supplement according to lacked element, treat 100% fusing, temperature exists
1550 DEG C-1580 DEG C, reduce EF power and carry out expanding deoxidation to 80KW, addition multi-element composite deoxidant 800g, and covering removes
Slag agent 2-3 minute, terminates to understand slag, then covers deslagging agent, slag making deslagging, sample examination, until the most qualified；C, close completely
After lattice, improve power and be warmed up to about 1600 DEG C, add 400g multi-element composite deoxidant (note: multi-element composite deoxidant is silico-calcium
Barium aluminium alloy is best), and cover deslagging agent simultaneously, close power supply and stand, make foreign material in molten steel float, skim 3-4 time rapidly, survey
When molten steel temperature is suitable for pouring temperature, quickly insulation tapping completes cast, pays special attention to during cast: flume must clean, light
Sliding, without steam, when lifting with parcel must elder generation's fire good；
E, post processing: carry out conventional cutting, polish, be heat-treated, pickling, ball blast operation.
Claims (3)
1. prevent a composite casting technology for low-temperature brake valve valve gap neck deformation, it is characterized in that: comprise the following steps:
A, making wax pattern
1) wax room indoor temperature will be penetrated and control at 24 ± 3 DEG C, and wax rifle will be directed at mould casting hole, opens valve by 45 DEG C-48
DEG C slack wax pressure injection in mold cavity, slack wax Pressure Casting is 0.3-0.5MPa, and the pressurize 5-10 second, makes slack wax complete
Each corner of press-in die cavity, closes valve, mold removal, and is put into by mould in the frozen water of 1 DEG C-5 DEG C, allow slack wax exist
Quickly cooling down in die cavity, then form removal, taking-up wax pattern was put into and was continued cooling in frozen water at 5-10 minute cool time；
2) wax pattern is repaired: uses special wax spatula of repairing to go fash and other unnecessary projections of dewaxing surface or inner chamber, and uses
Wax pattern rejected region filled up by dilute wax, and wiping is smooth, adapted acetone wiping, clean out after and detect qualified after, carry out wax pattern
Assemble；
3) wax pattern group tree: during group tree, between wax-pattern, minimal gaps must control at more than 15mm, between wax-pattern ingate and wax-pattern
Welding wants tight, must not have spine and gap；
B, manufacture shell
1) temperature of surface layer room is controlled at≤65 DEG C, first adds Ludox during configuration surface layer, then be gradually added JFC wetting agent,
The quality of JFC wetting agent accounts for the 0.3%-0.5% of gross mass, and JFC wetting agent and zirconium powder are mixed and stirred for uniformly, being eventually adding
Account for the defoamer that gross mass is 0.15%-2%；
2) the whole virgin material of surface layer should stir more than 24 hours, measures surface layer viscosity every day, with domestic No. 4 cups during measurement viscosity
Measure, should be controlled in regulation range of viscosities, Ludox surface layer ＞ drying time 8 hours, transition zone and the work of backing layer
Industry space temperature is maintained at≤50 DEG C, dry time ＞ 12 hours；
3) necessarily see the most dried when being stained with transition zone, and preimpregnation must be carried out, make shell be not easy layering, and degree of being stained with must
Must ensure at 20 ± 2 seconds；
4) when being stained with more than three layers, must adjust viscosity, degree of being stained with must assure that at 13 ± 2 seconds；
5) being stained with more than five layers and use waterglass coating, proportioning is allocated in the ratio of powder liquid quality 1: 1, and degree of being stained with must assure that 30 ±
2 seconds, hardening bath aluminium chloride density was 1.8-1.2, and firm time is 1 hour, and more than seven layers must extend firm time；
6) shell is made: unnecessary slurries must be scraped after being stained with slurry by valve gap neck and top screws lead to the hole site with iron wire or peg wood
Open, prevent blocking；Meanwhile, in order to strengthen investment shell intensity in shell processed, enter clockwise with No. six iron wire cisoid shells when being stained with layer 5
Line discipline is wound around to be reinforced, and then presoaks, and is stained with slurry, is stained with sand, dry and follow-up dewaxing, must will many with iron wire or peg wood after being stained with slurry
Remaining slurries scrape off, prevent blocking and carry out systematicness clockwise with No. six iron wire cisoid shells and be wound around reinforcing operation be all and other parts
Process for making shell is different, be prevent low-temperature brake valve lid neck deformation meet twice critical process in casting technique；
C, Baking
1) clean out shell and water peristoma, be strictly on guard against that sand foreign material are fallen in shell；
2) being carefully inverted downwards by shell cup, load in roaster, set sintering temperature by technological requirement, temperature is extremely
When 600 DEG C, closing fire door, roasting shell is white or rose look
3) roasting to coordinate with melting, it is ensured that during cast, and the requirement temperature that shell reaches to pour into a mould, at 1050 DEG C-1100 DEG C, is protected
Temperature time >=1.5 hour；
D, melting and cast
1) dispensing: a, mill run dispensing virgin material: foundry returns >=2: 3；Converted products dispensing virgin material: melt down
Material >=1: 1；C, remarks: all enter furnace charge requirement be maintained in the clean condition, substantially carry out non-corroding, without greasy dirt, no-sundries, nothing
Sand slag or the globule adhere to or phenomenon of making moist；First virgin material good for bundling is added during charging and dissolve, add foundry returns afterwards；
2) 304,316 stainless steel refinings are molten:
A, 80% load melting after, add electrolysis ferromanganese 400g pre-deoxidation, be subsequently adding aluminum strip 200g, slag making removes the gred, and takes
Sample block is chemically examined,
After b, chemical examination, carrying out feed supplement according to lacked element, treat 100% fusing, temperature, at 1550 DEG C-1580 DEG C, reduces intermediate frequency
Power, to 80KW, adds multi-element composite deoxidant 800g and carries out expanding deoxidation, and cover deslagging agent 2-3 minute, terminate
Understand slag, then cover deslagging agent, slag making deslagging, sample examination, until the most qualified,
C, the most qualified after, improve power be warmed up to 1600 DEG C, add 400g multi-element composite deoxidant, and simultaneously cover remove
Slag agent, closes power supply and stands, and makes foreign material in molten steel float, skims 3-4 time rapidly, when survey molten steel temperature is suitable for pouring temperature,
Quickly insulation tapping completes cast, pays special attention to during cast: flume must clean, smooth, without steam, must when lifting with parcel
The first fire of palpus is good；
E, post processing: carry out conventional cutting, polish, be heat-treated, pickling, ball blast operation.
2. according to the composite casting technology preventing low-temperature brake valve valve gap neck deformation described in claim 1, it is characterized in that: step
In rapid C, first checking that roaster and control instrument are the most normal before roasting, table is the most smooth totally, and flue is the most smooth and easy；Inspection
Surveying that shell is the most perfect to fall into, defective shell must be repaired completely, aplastic scraps process.
3., according to the composite casting technology preventing low-temperature brake valve valve gap neck deformation described in claim 1, it is characterized in that: enter
Before row step D, first check for the working of a furnace the best, if furnace lining or stove neck need to repair, then repaired with refractory material, repair
Feeder current steel tank position must be mended real, smooth, will toast patched furnace lining, flume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016475.4A CN104550733B (en) | 2015-01-14 | 2015-01-14 | Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016475.4A CN104550733B (en) | 2015-01-14 | 2015-01-14 | Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104550733A CN104550733A (en) | 2015-04-29 |
| CN104550733B true CN104550733B (en) | 2016-09-07 |
Family
ID=53068396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016475.4A Expired - Fee Related CN104550733B (en) | 2015-01-14 | 2015-01-14 | Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104550733B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618678A (en) * | 2015-12-29 | 2016-06-01 | 青岛博泰美联化工技术有限公司 | Preparation method for environment-friendly refined casting mold shell |
| CN107377877A (en) * | 2017-07-10 | 2017-11-24 | 盐城市诚益通机械制造有限责任公司 | A kind of two-way valve body formwork is stained with slurry manufacturing process |
| CN107838378A (en) * | 2017-11-24 | 2018-03-27 | 江苏华立控制阀有限公司 | A kind of shell melting casting process processed applied to control valve |
| CN110306100A (en) * | 2018-03-25 | 2019-10-08 | 江苏万恒铸业有限公司 | The method of-kind of optimization CN7M stainless cast steel part performance |
| CN108421954A (en) * | 2018-06-08 | 2018-08-21 | 泰州市博世特精密铸造有限公司 | Production method applied to valve wax-pattern |
| CN108705037A (en) * | 2018-06-08 | 2018-10-26 | 泰州市博世特精密铸造有限公司 | Casting method applied to automobile gear case lid |
| CN109604521A (en) * | 2018-11-23 | 2019-04-12 | 安徽应流铸业有限公司 | A kind of preparation method that the compound shell mold of essence casting is reinforced |
| CN109773122A (en) * | 2019-02-19 | 2019-05-21 | 大成（常熟）机械有限公司 | A kind of production technology and valve castings of the model casting of valve castings |
| CN111112549A (en) * | 2019-02-19 | 2020-05-08 | 大成（常熟）机械有限公司 | Precision casting production process of flow divider and flow divider |
| CN110576149A (en) * | 2019-10-18 | 2019-12-17 | 彰武县联信铸造硅砂有限公司 | Layered curing composite molding process for precoated sand |
| CN111250660A (en) * | 2020-03-11 | 2020-06-09 | 石家庄宏昌泵业有限公司 | Process for improving surface quality of casting |
| CN114736527A (en) * | 2022-04-13 | 2022-07-12 | 广东栎烽新材料有限公司 | Ornament casting wax, and preparation method and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040167270A1 (en) * | 2003-02-25 | 2004-08-26 | Dane Chang | Fugitive pattern for casting |
| CN101623747B (en) * | 2009-08-10 | 2011-06-08 | 温州市展诚阀门有限公司 | Direct investment casting forming technology of valve small-diameter trapezoidal internal thread |
| CN102069144B (en) * | 2011-01-10 | 2014-02-26 | 安徽应流集团霍山铸造有限公司 | Shell mold casting process for wax mold precision casting stainless steel big part |
| CN202451866U (en) * | 2012-01-13 | 2012-09-26 | 凯泰阀门(集团)有限公司 | Improved soft sealing gate valve |
-
2015
- 2015-01-14 CN CN201510016475.4A patent/CN104550733B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104550733A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104550733B (en) | Prevent the composite casting technology of low-temperature brake valve valve gap neck deformation | |
| CN101716651B (en) | Method for casting turbo supercharger volute shell casting for large ship | |
| CN104046859B (en) | Large wall thickness extruding aluminium alloy tubing of a kind of grain refining and preparation method thereof | |
| CN1112266C (en) | Casting technology and apparatus for producing die-cast ingot, castings and conticast billet | |
| CN102912078B (en) | The Multifunctional arc furnace system of minimumization power consumption and the processing procedure of manufacture product made from steel | |
| CN107838378A (en) | A kind of shell melting casting process processed applied to control valve | |
| CN102371345B (en) | Method for casting ductile iron casting of air-conditioning compressor | |
| CN103882185B (en) | High pressure bottom blowing refining casting device and the method with its smelting high-nitrogen steel | |
| CN104152793B (en) | QT500-7 heavy section casting quality and the method for Composition Control | |
| CN105562644A (en) | Method for manufacturing propeller casting for high nitrogen austenite stainless steel vessel | |
| CN102003299A (en) | Preparation method of aluminum alloy diesel engine body | |
| CN101693961A (en) | Melting method for lead-calcium alloys | |
| CN104630611A (en) | Crucible for die-casting machine and casting technology of crucible for die-casting machine | |
| CN104451008B (en) | A kind of blast furnace gravity flow fire-resistant castable construction method | |
| CN108977707A (en) | A kind of modified aluminium alloy, casting method | |
| CN107034394A (en) | A kind of production method of lifting AlSi12Cu aluminium alloy ingots combination properties | |
| CN106702188A (en) | Production method for improving comprehensive properties of AlSi12Fe aluminum alloy ingot | |
| CN106319256A (en) | Production method for improving Al-Si-Cu aluminum alloy ingot pinhole degree | |
| CN108176833A (en) | A kind of corrosion resistant sanitary sewer and preparation method thereof | |
| CN106086498A (en) | Aluminium alloy wheel hub gravity melt casting process | |
| CN107243603A (en) | A kind of offshore oil and gas drilling and producing platform casing thin-section casting manufacture method | |
| CN104233014B (en) | A kind of axial compressor rotor sheet alloy material and preparation method thereof | |
| CN106756155A (en) | Sacrificial anode continuous fusion-cast technique | |
| CA2606833C (en) | A method for producing pigs comprising introducing a supply of energy by means of a variable physical field | |
| CN106319257B (en) | A kind of production method promoting ADC12 aluminium alloy ingots grain sizes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Sunliang Inventor after: Zhou Lin Inventor after: Wei Daming Inventor after: Jin Shuangquan Inventor after: Wang Jianju Inventor before: Zhou Sunliang Inventor before: Wei Daming Inventor before: Jin Shuangquan Inventor before: Wang Jianju |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160414 Address after: 325000 No. 13 Yao Yao Road, Yao Xi Street, Longwan District, Zhejiang, Wenzhou Applicant after: Wenzhou Chang Chang Valve Co., Ltd. Address before: Yongchang road Longwan District Yongqiang hi tech park in Wenzhou city of Zhejiang Province, No. 501 325000 Applicant before: ZHEJIANG TIANRUI STEEL CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composite casting technology capable of preventing neck part of valve cap of low-temperature brake valve from being deformed Effective date of registration: 20191227 Granted publication date: 20160907 Pledgee: Industrial Bank Co., Ltd. Wenzhou Branch Pledgor: Wenzhou Chang Chang Valve Co., Ltd. Registration number: Y2019330000403 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210511 Granted publication date: 20160907 Pledgee: Industrial Bank Co.,Ltd. Wenzhou Branch Pledgor: WENZHOU CHANGJIA VALVE Co.,Ltd. Registration number: Y2019330000403 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20210114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |