CN205763651U - A kind of casting system of the cast steel reel of high-strength, high-anti-friction - Google Patents
A kind of casting system of the cast steel reel of high-strength, high-anti-friction Download PDFInfo
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- CN205763651U CN205763651U CN201620489501.5U CN201620489501U CN205763651U CN 205763651 U CN205763651 U CN 205763651U CN 201620489501 U CN201620489501 U CN 201620489501U CN 205763651 U CN205763651 U CN 205763651U
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- apperance
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- integral piece
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Abstract
The utility model discloses the casting system of the cast steel reel of a kind of high-strength, high-anti-friction, including reel apperance, runner system apperance, the first casing that can be airtight, upper stalk, vaccum suction tube, back-up sand, can be airtight the second casing, for containing the open containers of molten steel；The cast steel reel of this casting system output has higher intensity and higher wearability, and can be applicable to large-scale or ultra-large type crane gear, churning driven and hoisting speed reducer.
Description
Technical field
This utility model relates to engineering equipment technical field, especially relates to the cast steel reel of a kind of high-strength, high-anti-friction
Casting system.
Background technology
Reel is one of key components and parts of large lifting equipment, churning driven and hoisting speed reducer, due to the steel wire rope of load-bearing
Being directly wound on reel, reel directly bears sling load, and crane gear, churning driven and elevator are subtracted by its quality good or not
The safe operation of speed machine has vital impact.Along with the developing trend of modern project is maximized, construction machinery industry
Large-scale or ultra-large type crane gear, rig and hoisting speed reducer application is more and more extensive, the weight of lifting and lift
All increase considerably.Such as: the hoisting weight of ultra-large type crane gear has reached a few kiloton；The lift of ultra-large type hoist engine
Reach hundreds of meters.Therefore, material of reel and preparation method thereof is had higher requirement.
At present, existing reel has cast steel reel, but the comprehensive mechanical property of this cast steel reel is not ideal, especially
It is intensity with wearability along with scientific and technological progress, increasingly can not meet actual requirement of engineering.
Therefore, how to provide a kind of that there is high-strength, high-anti-friction, and be applicable to large-scale or ultra-large type crane gear, rotation
Dig brill and the cast steel reel of hoisting speed reducer is that current those skilled in the art need badly and solve the technical problem that.
Utility model content
The purpose of this utility model is to provide the casting system of the cast steel reel of a kind of high-strength, high-anti-friction, this casting system
The cast steel reel of output has higher intensity and a higher wearability, and can be applicable to large-scale or ultra-large type and rise and reset
Standby, churning driven and hoisting speed reducer.
For solving above-mentioned technical problem, the technical scheme that this utility model provides is:
A kind of casting system of the cast steel reel of high-strength, high-anti-friction, described reel include hollow tubular spool body,
Upper block plate, lower block plate and be positioned at the chock hole portion inside spool body one end, including reel apperance, runner system apperance,
The first casing that can be airtight, upper stalk, vaccum suction tube, back-up sand, can be airtight the second casing, be used for containing
The open containers of molten steel；
Described reel apperance and the atactic copolymerized polypropene plastic material that runner system apperance is injection mo(u)lding；
Described reel apperance and described runner system apperance are integral by bonding connection, and described runner system apperance is bonded in
On the bottom surface of described reel apperance, to obtain including the apperance integral piece of described reel apperance and runner system apperance；
Described apperance integral piece is positioned in described first casing with vertical；
Described upper stalk passes and is fixed in the lower bottom of described first casing, the free end of described runner system apperance
Lower surface is docked with the upper end open of described upper stalk, and the free end lower surface of described runner system apperance is completely covered by
The upper end open of described upper stalk, described upper stalk and the junction of bottom under described first casing are for being tightly connected；
Described vaccum suction tube through and be fixed on the side box wall of described first casing, one end of described vaccum suction tube with
Described apperance integral piece keeps at a certain distance away, the other end of described vaccum suction tube be exposed at described first casing outside and with
Vacuum system connects, and the junction of described vaccum suction tube and described first case-side tank wall is for being tightly connected；
Described back-up sand compresses enriches the remaining space in described first casing to obtain sand mold；
Described open containers is placed in a second airtight casing, and the lower end of described upper stalk is through described second
The top case lid of casing immerses in the molten steel in described open containers, and described upper stalk with the junction of described second casing is
It is tightly connected；
Being provided with compressed gas entrance on the tank wall of described second casing, described compressed gas entrance is with compressed gas source of the gas even
Logical.
Preferably, also include the periphery being arranged at described apperance integral piece by the way of described apperance integral piece to
Multiple cooling coils of lower laying, each described cooling coil has the most independent import and outlet, each described cooling
Coil pipe can regulate to control the process of setting of molten steel with the spacing size of described apperance integral piece outer wall.
Preferably, also include being arranged at the multiple cooler pans laid from top to bottom at the boring of described apperance integral piece
Pipe, each cooling coil has in the most independent import and outlet, each described cooling coil and described apperance integral piece
The spacing size of wall can regulate to control the process of setting of molten steel.
This utility model provides the casting system of the cast steel reel of a kind of high-strength, high-anti-friction, compared to the tradition of reel
Sand mould casting method, this utility model has a following useful technique effect:
1), in sand casting originally, reel apperance many employings wooden model, after making sand mold, wooden model to be taken out, in order to take
Go out wooden model, need to do some special designs, such as: sand mold at least two-layer is beneficial to later stage taking-up wooden model, and wooden model needs
Pattern draft to be made to facilitate the later stage to take out wooden model, etc., after casting, also to machine and remove rising on foundry goods
Mould gradient, wastes time and energy, and adds production cost, reduces production efficiency, to this end, this utility model uses plastics mould
Sample, owing to plastics apperance is easy to gasification touching the molten steel of high temperature when, becomes gas and is taken away by vacuum system,
Leaving behind a sand mold die cavity similar to reel structure profile, therefore, in this utility model, sand mold need not arrange typing
Face, whole sandbox is a complete sandbox, without arranging pattern draft, without arranging corresponding to spool body
Core at hollow cavity etc., is directly embedded in back-up sand the most permissible by above-mentioned apperance integral piece, time saving and energy saving, saves into
This, improve efficiency.
2) this utility model uses injection mo(u)lding, emphasizes to use non-foam moulding process, and the apperance obtained after molding is than bubble
Foam plastics have higher density and intensity, compaction force bigger during can bearing compacting back-up sand below, and unlikely
In making reel apperance and casting system apperance deformation occur, and foam plastics is easily deformed under this compaction force.
3) in original sand casting, liquation fills type from top to bottom, and the gas in sand mold moves from the bottom up so that gas
It is melt hydraulic pressure, is difficult to the problem from sand mold effusion, cause volume gas serious in sand casting and pore problem, to this end,
In this utility model, it is placed in vertical for apperance integral piece in sand mold, and described runner system apperance is bonded in described reel
On the bottom surface of apperance so that molten steel is to fill type from the bottom up, and apperance integral piece is to gasify from the bottom up, the gas after gasification
Also being to move from the bottom up, the direction of three is consistent, thus avoids above-mentioned volume gas and pore problem.
4) sand casting now, foundry goods is all natural cooling, and the cast structure obtained after solidification is what is exactly
What, entirely without there being purpose control, be a kind of cooled and solidified entirely without control, and the solidified structure obtained is many
There is the defects such as segregation, shrinkage cavity and porosity, cold shut, coarse grains, have a strong impact on the mechanical property of foundry goods, to this end,
This utility model, imbeds cooling coil in sand mold in advance, by controlling multiple cooling coils and described reel apperance outer wall
Spacing size control molten steel process of setting, by control multiple cooling coils big with the spacing of described reel apperance inwall
The process of setting of little control molten steel, and select suitably to be initially supplied the opportunity of cooling medium, and control multiple cooling coil
In be initially supplied order before and after cooling medium, and control corresponding cooling medium consumption and pressure in each cooling coil,
To realize carrying out cast steel reel forcing cooled and solidified, improve cooling and hasten, with inhibiting grain growth, obtain crystal grain thinning,
Considerably improved the mechanical properties such as the intensity of foundry goods, toughness and wearability by refined crystalline strengthening, and realize to
Under consecutive solidification, the top of foundry goods first cools down, and solidifies the most gradually downward, then foundry goods bottom solidification, be finally
Casting system solidifies, and significantly reduces the shrinkage cavity and porosity in original sand casting and cold shut problem, improves foundry goods matter
Amount.Owing in the first casing, sand mold has a bigger breathability, in gas after plastics gasification and cavity filling process, the external world is entered
Enter the air in the first airtight casing to flow in the first casing, as a kind of heat transfer medium, type will be filled by flowing
The heat of molten steel passes to the cooling medium in cooling coil, it is achieved the pressure cooling effect of above-mentioned cooling coil, improves casting
The structure property of part.
5) tradition sand casting in, liquation be entirely by self gravity flow fill type, it is easy to occur misrun,
The problem such as cold shut, shrinkage cavity and porosity, to this end, this utility model, uses pressure and the suction force of vacuum of compressed gas
Jointly act on and molten steel is filled whole sand mold die cavity, and before solidification completely, keep blowing gas and evacuation so that steel
Water fills sand mold die cavity with a pressure all the time, and cools down therewith, significantly reduces misrun, cold shut, shrinkage cavity, contracting
The quality problems such as pine.
Accompanying drawing explanation
The front view of the reel that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the rearview of Fig. 1；
Fig. 3 is the centre section topology view of Fig. 1；
Fig. 4 is the A-A face cross section view in Fig. 3；
Fig. 5 is the B-B face cross section view in Fig. 3；
In figure: 1 reel, 101 spool body, block plate on 102,103 times block plates, 104 chock hole portions.
Detailed description of the invention
In order to be further appreciated by this utility model, below in conjunction with embodiment, this utility model preferred embodiment is retouched
State, but it is to be understood that these descriptions simply further illustrate feature of the present utility model and advantage rather than to this reality
Restriction by novel claim.
Now, cast steel reel many employings sand mould casting method molding, but there are some problems more, to this end, this utility model
The casting system of the cast steel reel providing a kind of high-strength, high-anti-friction include reel apperance, runner system apperance, can
The first airtight casing, upper stalk, vaccum suction tube, back-up sand, can be airtight the second casing, be used for containing molten steel
Open containers；
Described reel 1 includes the spool body 101 of hollow tubular, upper block plate 102, lower block plate 103 and is positioned at reel
Chock hole portion 104 inside body one end；
Described reel apperance and the atactic copolymerized polypropene plastic material that runner system apperance is injection mo(u)lding；
Described reel apperance and described runner system apperance are integral by bonding connection, and described runner system apperance is bonded in
On the bottom surface of described reel apperance, to obtain including the apperance integral piece of described reel apperance and runner system apperance；
Described apperance integral piece is positioned in described first casing with vertical；
Described upper stalk passes and is fixed in the lower bottom of described first casing, the free end of described runner system apperance
Lower surface is docked with the upper end open of described upper stalk, and the free end lower surface of described runner system apperance is completely covered by
The upper end open of described upper stalk, described upper stalk and the junction of bottom under described first casing are for being tightly connected；
Described vaccum suction tube through and be fixed on the side box wall of described first casing, one end of described vaccum suction tube with
Described apperance integral piece keeps at a certain distance away, the other end of described vaccum suction tube be exposed at described first casing outside and with
Vacuum system connects, and the junction of described vaccum suction tube and described first case-side tank wall is for being tightly connected；
Described back-up sand compresses enriches the remaining space in described first casing to obtain sand mold；
Described open containers is placed in a second airtight casing, and the lower end of described upper stalk is through described second
The top case lid of casing immerses in the molten steel in described open containers, and described upper stalk with the junction of described second casing is
It is tightly connected；
Being provided with compressed gas entrance on the tank wall of described second casing, described compressed gas entrance is with compressed gas source of the gas even
Logical.
In an embodiment of the present utility model, above-mentioned casting system also includes the periphery being arranged at described apperance integral piece
By the multiple cooling coils laid from top to bottom in the way of described apperance integral piece, each described cooling coil has respectively
From independent import and outlet, the spacing size of each described cooling coil and described apperance integral piece outer wall can regulate with
Control the process of setting of molten steel.
In an embodiment of the present utility model, above-mentioned casting system also includes the inside being arranged at described apperance integral piece
Multiple cooling coils that hollow position is laid from top to bottom, each cooling coil has the most independent import and outlet, each
Described cooling coil can regulate to control the process of setting of molten steel with the spacing size of described apperance integral piece inwall.
The method of operation of the casting system of the above-mentioned cast steel reel that this utility model provides, comprises the following steps:
1) reel apperance is produced:
As shown in Fig. 1 Fig. 5, described reel 1 includes the spool body 101 of hollow tubular, upper block plate 102, lower block plate
103 and be positioned at the chock hole portion 104 inside spool body 101 one end；Chock hole portion 104 includes that a wall thickness is bigger
But the hollow cavity that hollow internal diameter is less；
Atactic copolymerized polypropene plastics are produced reel apperance by injection molding forming method；Above-mentioned reel apperance is true with it
The contour structures of thing is similar, simply exists and compensates the magnification ratio of shrinkage factor in casting solidification process, and there is not tradition sand
Pattern draft in mold casting；
Atactic copolymerized polypropene plastics are produced runner system apperance by injection molding forming method；Preferably, runner system mould
Sample is solid vertical column；
Described reel apperance is integral by bonding connection with described runner system apperance, and described runner system apperance bonds
On the bottom surface of described reel apperance, obtain including the apperance integral piece of described reel apperance and runner system apperance；Excellent
Choosing, by PUR bonding connection；
Above-mentioned atactic copolymerized polypropene plastics, for based on atactic copolymerized polypropene, add stabilizer, lubricant, plasticising
The plastics that agent etc. are made.The formula of above-mentioned atactic copolymerized polypropene plastics is not particularly limited by this utility model, uses this
Conventional formulation in technical field；
This utility model uses injection mo(u)lding, emphasizes to use non-foam moulding process, and the apperance obtained after molding compares foam plastic
Material has higher density and intensity, compaction force bigger during can bearing compacting back-up sand below, and is unlikely to make
Obtain reel apperance and deformation occurs in casting system apperance, and foam plastics is easily deformed under this compaction force；
Originally, in sand casting, reel apperance many employings wooden model, after making sand mold, wooden model to be taken out, in order to take out wood
Mould, needs to do some special designs, such as: sand mold at least two-layer is beneficial to later stage taking-up wooden model, and wooden model needs system
Make pattern draft to facilitate the later stage to take out wooden model, etc., after casting, also to machine the molding removed on foundry goods oblique
Degree, wastes time and energy, adds production cost, reduce production efficiency, to this end, this utility model uses plastics apperance,
Owing to plastics apperance is easy to gasification touching the molten steel of high temperature when, becomes gas and taken away by vacuum system, only stay
The next sand mold die cavity similar to reel structure profile, therefore, in this utility model, sand mold need not arrange die joint,
Whole sandbox is a complete sandbox, without arranging pattern draft, without arranging corresponding to spool body 101
Core at hollow cavity etc., is directly embedded in back-up sand the most permissible by above-mentioned apperance integral piece, time saving and energy saving, saves into
This, improve efficiency；
2) take first casing, by step 1) in apperance integral piece be positioned in described first casing with vertical；
In original sand casting, liquation fills type from top to bottom, and the gas in sand mold moves from the bottom up so that gas is melt
Hydraulic pressure is lived, and is difficult to the problem from sand mold effusion, causes volume gas serious in sand casting and pore problem, to this end, this
In utility model, it is placed in vertical for apperance integral piece in sand mold, and described runner system apperance is bonded in described reel mould
On the bottom surface of sample so that molten steel is to fill type from the bottom up, and apperance integral piece is to gasify from the bottom up, and the gas after gasification is also
Being to move from the bottom up, the direction of three is consistent, thus avoids above-mentioned volume gas and pore problem；
Then multiple cold to lay from top to bottom in the way of described apperance integral piece in the periphery of described apperance integral piece
But coil pipe, each cooling coil has the most independent import and outlet, by controlling multiple cooling coils and described apperance
The spacing size of integral piece outer wall controls the process of setting of molten steel；
Then laying multiple cooling coil at the boring of described apperance integral piece from top to bottom, each cooling coil has
There are the most independent import and outlet, by controlling the spacing size control of multiple cooling coils and described apperance integral piece inwall
The process of setting of molten steel processed；
Sand casting now, foundry goods is all natural cooling, and the cast structure obtained after solidification is what what is exactly
Appearance, entirely without there being purpose control, is a kind of cooled and solidified entirely without control, the many existence of solidified structure obtained
The defects such as segregation, shrinkage cavity and porosity, cold shut, coarse grains, have had a strong impact on the mechanical property of foundry goods, to this end, this reality
With novel, sand mold is imbedded cooling coil in advance, by controlling between multiple cooling coils and described reel apperance outer wall
The process of setting of molten steel is controlled, by controlling the spacing size control of multiple cooling coils and described reel apperance inwall away from size
The process of setting of molten steel processed, and select suitably to be initially supplied the opportunity of cooling medium, and control multiple cooling coil is opened
Begin to supply order before and after cooling medium, and control corresponding cooling medium consumption and pressure in each cooling coil, with reality
Now carry out cast steel reel forcing cooled and solidified, improve cooling and hasten, with inhibiting grain growth, obtain crystal grain thinning, logical
Cross refined crystalline strengthening and considerably improve the mechanical properties such as the intensity of foundry goods, toughness and wearability, and realize from top to bottom
Consecutive solidification, the top of foundry goods first cools down, and solidifies the most gradually downward, then foundry goods bottom solidification, finally water
Casting system solidifies, and significantly reduces the shrinkage cavity and porosity in original sand casting and cold shut problem, improves casting quality；
Owing in the first casing, sand mold has a bigger breathability, in gas after plastics gasification and cavity filling process extraneous enter close
Air in the first casing closed can flow in the first casing, as a kind of heat transfer medium, will fill shaped steel water by flowing
Heat pass to the cooling medium in cooling coil, it is achieved the pressure cooling effect of above-mentioned cooling coil, improve foundry goods
Structure property；
Then stalk is set, described upper stalk through and be fixed in the lower bottom of described first casing, described in water
The free end lower surface of road system apperance is docked with the upper end open of described upper stalk, and described runner system apperance from
It is completely covered by the upper end open of described upper stalk by end lower surface, seals described upper stalk and described first casing nowel
The junction at the end；
Then arranging vaccum suction tube, described vaccum suction tube passes and is fixed on the side box wall of described first casing, institute
The one end stating vaccum suction tube keeps at a certain distance away with described apperance integral piece, and the other end of described vaccum suction tube is exposed at institute
State the outside of the first casing and connect with vacuum system, sealing the company of described vaccum suction tube and described first case-side tank wall
Meet place；
Then back-up sand in described first casing, is then compacted, obtains sand mold；In this sand mold and tradition sand casting process
Sand mold with sand kind, manufacture method etc. identical, it is not specifically limited to this for this utility model, use prior art
In；
Then whole described first casing is sealed to coordinate above-mentioned vacuum system extracting vacuum；Vacuum herein means whole
Being all negative-pressure vacuum in first casing, owing to this utility model uses the sand mold in tradition sand casting, this sand mold has relatively
High breathability, so that above-mentioned plastics gas and the circulation of air originally, and eventually through vaccum suction tube quilt
Vacuum system is taken away；
3) smelting molten steel, obtains above-mentioned molten steel, is then contained by molten steel open containers；
4) by step 3) in open containers be placed in a second airtight casing, and make described upper stalk
Lower end is immersed in the molten steel in described open containers through the top case lid of described second casing, seals described upper stalk and institute
State the junction of the second casing；
5) in described second casing, blow compressed gas, meanwhile, open vacuum system and produce vacuum, in open containers
Molten steel under the effect of the pressure of compressed gas and the suction force of vacuum, along the die cavity rising liquid pipe and flowing into sand mold
In, molten steel fills type from the bottom up, first runner system apperance is gasified with reel apperance, until the liquid level in open containers is not
Declining and show that molten steel fills whole sand mold die cavity, the gas after gasification is taken away by vacuum system by vaccum suction tube, so
Rear holding blows gas and evacuation, until the molten steel solidification in sand mold die cavity；
Tradition sand casting in, liquation be entirely by self gravity flow fill type, it is easy to occur misrun, cold shut,
The problems such as shrinkage cavity and porosity, to this end, this utility model, use the pressure of compressed gas and the suction force of vacuum jointly to make
With molten steel fills whole sand mold die cavity, and before solidification completely, keep blowing gas and evacuation so that molten steel is all the time
Fill sand mold die cavity with a pressure, and cool down therewith, significantly reduce the matter such as misrun, cold shut, shrinkage cavity and porosity
Amount problem；
After the liquid level in open containers no longer declines, the most successively in each cooling coil supply cooling medium with
Cast steel reel is carried out cooled and solidified and realizes consecutive solidification from top to bottom, it is preferred that cooling medium is water；
6) after the import department of cooling coil of bottom is less than 3 DEG C with the temperature difference of the cooling medium in exit, stop blowing
Compressed gas and evacuation, then extract out described upper stalk from described second casing, then take described first apart
Casing, then abolishes sand mold, knocks out described shell, obtains cast steel reel；Then proceed to follow-up process, the hottest place
Reason；
When in traditional sand casting, unpack complete with personal experience, easily determine error, and this utility model with
The temperature difference of the import department of the cooling coil of bottom and the cooling medium in exit is as unpacking criterion, when this temperature difference is little
After 3 DEG C, show that the temperature of the bottom of foundry goods is reduced to relatively low, can unpack, it is provided that a kind of that grow out of nothing and
The more determination methods of intuitive and convenient.
The explanation of above example is only intended to help to understand method of the present utility model and core concept thereof.It should be pointed out that,
For those skilled in the art, on the premise of without departing from this utility model principle, it is also possible to this
Utility model carries out some improvement and modification, and these improve and modification also falls into this utility model scope of the claims
In.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new
Type.Multiple amendment for these embodiments is apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to disclosed herein
Principle and the consistent widest range of features of novelty.
Claims (3)
1. a casting system for the cast steel reel of high-strength, high-anti-friction, described reel includes the reel of hollow tubular originally
Body, upper block plate, lower block plate and be positioned at the chock hole portion inside spool body one end, it is characterised in that include reel mould
Sample, runner system apperance, the first casing that can be airtight, upper stalk, vaccum suction tube, back-up sand, can be airtight
Second casing, for containing the open containers of molten steel；
Described reel apperance and the atactic copolymerized polypropene plastic material that runner system apperance is injection mo(u)lding；
Described reel apperance and described runner system apperance are integral by bonding connection, and described runner system apperance is bonded in
On the bottom surface of described reel apperance, to obtain including the apperance integral piece of described reel apperance and runner system apperance；
Described apperance integral piece is positioned in described first casing with vertical；
Described upper stalk passes and is fixed in the lower bottom of described first casing, the free end of described runner system apperance
Lower surface is docked with the upper end open of described upper stalk, and the free end lower surface of described runner system apperance is completely covered by
The upper end open of described upper stalk, described upper stalk and the junction of bottom under described first casing are for being tightly connected；
Described vaccum suction tube through and be fixed on the side box wall of described first casing, one end of described vaccum suction tube with
Described apperance integral piece keeps at a certain distance away, the other end of described vaccum suction tube be exposed at described first casing outside and with
Vacuum system connects, and the junction of described vaccum suction tube and described first case-side tank wall is for being tightly connected；
Described back-up sand compresses enriches the remaining space in described first casing to obtain sand mold；
Described open containers is placed in a second airtight casing, and the lower end of described upper stalk is through described second
The top case lid of casing immerses in the molten steel in described open containers, and described upper stalk with the junction of described second casing is
It is tightly connected；
Being provided with compressed gas entrance on the tank wall of described second casing, described compressed gas entrance is with compressed gas source of the gas even
Logical.
Casting system the most according to claim 1, it is characterised in that also include being arranged at described apperance integral piece
Periphery by the multiple cooling coils laid from top to bottom in the way of described apperance integral piece, each described cooling coil
Having the most independent import and outlet, each described cooling coil is permissible with the spacing size of described apperance integral piece outer wall
Regulate to control the process of setting of molten steel.
Casting system the most according to claim 1, it is characterised in that also include being arranged at described apperance integral piece
Boring at multiple cooling coils of laying from top to bottom, each cooling coil has the most independent import and goes out
Mouthful, each described cooling coil can regulate to control the solidification of molten steel with the spacing size of described apperance integral piece inwall
Journey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620489501.5U CN205763651U (en) | 2016-05-26 | 2016-05-26 | A kind of casting system of the cast steel reel of high-strength, high-anti-friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620489501.5U CN205763651U (en) | 2016-05-26 | 2016-05-26 | A kind of casting system of the cast steel reel of high-strength, high-anti-friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205763651U true CN205763651U (en) | 2016-12-07 |
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ID=58110846
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620489501.5U Active CN205763651U (en) | 2016-05-26 | 2016-05-26 | A kind of casting system of the cast steel reel of high-strength, high-anti-friction |
Country Status (1)
| Country | Link |
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| CN (1) | CN205763651U (en) |
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2016
- 2016-05-26 CN CN201620489501.5U patent/CN205763651U/en active Active
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