CN107931530A - A kind of sand mold riser runner and preparation method - Google Patents
A kind of sand mold riser runner and preparation method Download PDFInfo
- Publication number
- CN107931530A CN107931530A CN201711205098.4A CN201711205098A CN107931530A CN 107931530 A CN107931530 A CN 107931530A CN 201711205098 A CN201711205098 A CN 201711205098A CN 107931530 A CN107931530 A CN 107931530A
- Authority
- CN
- China
- Prior art keywords
- parts
- sand
- external screw
- screw thread
- nano
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of sand mold riser runner, including sand core body, venthole, venthole sets along sand core body axis and runs through sand core body, and the sand core body lower part is additionally provided with external screw thread, the external screw thread pitch is 5 8mm, and the external screw thread line number is 24.The present invention also provides the preparation method of above-mentioned sand mold riser runner, including step：1) printed material is provided；The material is mixed by the raw material of following parts by weight：30 50 parts of waterglass quartz sand, 50 70 parts of waterglass chromite sand, 5 15 parts of resin sand, 5 15 parts of graphene, 5 10 parts of nano-calcium carbonate, 5 10 parts of nano-titanium dioxide, 5 10 parts of crosslinking agent；2) 3D printing parameter is provided；3) printing obtains the sand mold riser runner.The riser runner that the present invention produces, has excellent mechanical strength, can be firmly fixed to core and wrap, and assembling is simple, time saving and energy saving, during castings production, does not float and does not run away, substantially increases the quality of production of casting.
Description
Technical field
The present invention relates to casting field, is specially a kind of sand mold riser runner and preparation method.
Background technology
Riser refers to, to avoid casting from the supplement part that defect is attached to above casting or side occur, prevent from contracting
Hole, shrinkage porosite, the effect for being vented sum aggregate slag.
In the prior art, riser sand core and core bag are generally bonded in one by independent riser runner by using Instant cement
Rise, as shown in Figure 1, this fixed form, in casting process, glue easily loses bond effect because of iron liquid high-temperature baking, so that
Cause riser runner sand core to float, reduce head, and then cause cast-internal to produce shrinkage defect, cause casting to scrap.
And small part is in the prior art, riser runner is fixed using being threadedly coupled, but because the mechanical strength of threaded connection can not meet to want
Ask, also result in the floating runout of riser sand core, influence casting quality.
The content of the invention
The present invention provides a kind of sand mold riser runner, and the sand mold riser runner is using thread fixing structure and core Bao Lian
Connect, and helicitic texture substantially increases its mechanical strength by the setting of parameters.The present invention also provides a kind of sand
The preparation method of type riser runner, the preparation method use 3D inkjet printing technologies, are further improving the base of Modeling Material
On plinth, high intensity, high-mechanical property, the heat-resisting Modeling Material of heatproof are obtained, and then obtain the outlet with good fixed performance
Riser, the riser runner that the present invention produces, can be firmly fixed to core and wrap, during castings production, not float and do not run
Fire, substantially increases the quality of production of casting.
To solve the above problems, the present invention provides a kind of sand mold riser runner, including sand core body, venthole, it is described go out
Stomata is set along sand core body axis, and the venthole runs through sand core body, it is characterised in that the sand core body lower part is also set
External screw thread is equipped with, the external screw thread pitch is 5-8mm, and the external screw thread line number is 2-4.
Preferably, the external screw thread pitch is 6mm, and the external screw thread line number is 2.
Preferably, the external screw thread thread form angle is 55-62 °, and the external screw thread thread height is 3.000-4.800mm.
Preferably, above-mentioned sand mold riser runner further includes the internal thread to cooperate with the external screw thread, the internal thread
It is arranged in the core bag being used cooperatively with the sand mold riser runner.
The present invention also provides the preparation method of above-mentioned sand mold riser runner, including step：
1) printed material is provided；The material is mixed by the raw material of following parts by weight：Waterglass quartz sand 30-50
Part, 50-70 parts of waterglass chromite sand, 5-15 parts of resin self-setting sand, 5-15 parts of graphene, 5-10 parts of nano-calcium carbonate, nanometer
5-10 parts of titanium dioxide, 5-10 parts of crosslinking agent；
2) 3D printing parameter is provided；
3) 3D printing equipment is utilized, printing obtains the sand mold riser runner.
Preferably, Modeling Material is mixed by the raw material of following parts by weight described in the step 1)：Waterglass quartz
40 parts of sand, 60 parts of waterglass chromite sand, 10 parts of resin sand, 10 parts of graphene, 8 parts of nano-calcium carbonate, nano-titanium dioxide 8
Part, 8 parts of crosslinking agent.
Preferably, in the step 1), nano-calcium carbonate particle diameter is 400-600 nanometers.
Preferably, in the step 1), nano-titanium dioxide particle diameter is 50-150 nanometers.
It is more highly preferred to, in the step 1), crosslinking agent is one in peroxidating toluoyl or tetraalkyl butyl acrylate
Kind.
Chromite sand category picotite class, essential mineral composition is FeO.Cr2O3, originate in the hyper-base of basic rock or rich magnesium
Property rock or by it develop serpentinite in, actual mineral are made of the mixed crystal of various spinelles.Can generally (Mg, Fe) be used
O 〃 (Cr, Al, Fe)2O3Chemical formula represent.The density of chromite sand is 4-4.8g/cm3, Mohs' hardness is 5.5-6 grades, fire resisting
Degree be more than 1900 DEG C, but it is impure when its refractoriness will reduce.Most harmful impurity is carbonate (CaCO in chromite3,
MgCO3), CO is decomposited when it is contacted with high-temperature liquid metal2, cast(ing) surface is produced stomata.Therefore the ferrochrome containing carbonate
Ore deposit should make carbonate decomposition therein through 900-950 DEG C of high-temperature roasting.Chromite sand plays the role of good alkali resistance slag, no
Chemically reacted with iron oxide etc..The thermal conductivity of chromite sand is several times bigger than silica sand, and in the mistake of molten metal cast
Solid-phase sintering occurs in itself for chromite in journey, so as to be conducive to prevent the infiltration of molten metal.
The quartz of nature or quartzy sandstone, through being known as artificial sand obtained from hand breaking, screening.General SiO2Contain
Amount is higher than natural sand, is to be distinguished with natural sand, often claims quartz sand.Its refractoriness is higher, and casting has used.
Waterglass has been that China's dosage since the 1950s is only second to clay and a kind of bentonitic inorganic chemistry glues
Agent is tied, by the improved foundry sands of waterglass, is widely used in casting industry.
Resin self-setting sand technique is widely used by many cast irons, cast steel and nonferrous alloy Foundry Works, is given birth to resin sand
Produce that complex-shaped, dimension precision requirement is very high, surface roughness value is low, weigh more than 50 tons of large-sized water turbine machine rotor cast steel
Part；Many machine tool plants are using resin sand production outlet lathe casting.The existing set of resin self-setting sand production line about 300 in China
It is a plurality of, have been widely used in the industries such as lathe, water pump, valve, marine diesel, rolling stock.The mesh in resin sand technique
It is preceding based on furan resin self curing sand, but Ester cured alkalescent phenol resin sand and phenoluria alkane resin sand technique are also in 20-30 family's work
Factory is applied.
Graphene is a kind of fully transparent carbon material, is for being stripped out from graphite material, being made of carbon atom
There is the two dimensional crystal of one layer of atomic thickness.Graphene is to be currently known one of highest material of intensity, while is also had good
Toughness, and can bend, the theoretical Young's modulus of graphene reaches 1.0TPa, and intrinsic tensile strength is 130GPa.And utilize hydrogen
The reduced graphene of plasma modification also has extraordinary intensity, and average modulus can big 0.25TPa.
Graphene also has good electric conductivity, and carrier mobility at room temperature is about 15000cm2/ (V-s),
This numerical value has exceeded 10 times of silicon materials, is be currently known the highest material indium antimonide (InSb) of carrier mobility twice
More than.Under given conditions such as under low temperature, the carrier mobility even up to 250000cm of graphene2/(V-s)。
Different with many materials, the electron mobility of graphene is acted upon by temperature changes smaller, any temperature between 50~500K
Under degree, the electron mobility of single-layer graphene is all in 15000cm2/ (V-s) left and right.
In addition, the heat-conductive characteristic of graphene is also very excellent.The thermal conductivity factor of pure flawless single-layer graphene is high
It is the highest carbon material of thermal conductivity factor so far, higher than single-walled carbon nanotube (3500W/mK) and multi wall carbon up to 5300W/mK
Nanotube (3000W/mK).When it is as carrier, its thermal conductivity factor is also up to 600W/mK.
Nano-calcium carbonate and nano-titanium dioxide, primarily serve rigid particles enhancing, the effect of toughness reinforcing in the present invention,
50-150 nanometers of the average grain diameter of nano-titanium dioxide, is preferably 80-100 nanometers, the average grain diameter of nano-calcium carbonate is 400-
600 nanometers, be preferably 500 nanometers.Nano-calcium carbonate and nano-titanium dioxide cooperate, and can strengthen 3D printing Modeling Materials
The intensity of material.
Crosslinking agent refers to can be in intermolecular bridging action of line style, so that multiple linear molecules are mutually bonded crosslinking networking
The material of shape structure, specifically, refers to the material that can promote or adjust polymer molecule interchain covalent bond or ionic bond is formed.
The crosslinking agent that the present invention uses includes one or both of benzoyl peroxide or tetraalkyl butyl acrylate, if two kinds of compoundings
Use, then the ratio of benzoyl peroxide and tetraalkyl butyl acrylate is preferably 15:8.
The present invention provides a kind of sand mold riser runner, and the sand mold riser runner is using thread fixing structure and core Bao Lian
Connect, and helicitic texture substantially increases its mechanical strength by the setting of parameters.The present invention also provides a kind of sand
The preparation method of type riser runner, the preparation method uses 3D inkjet printing technologies, on the basis of Modeling Material is improved, leads to
Cross and resin self-setting sand, graphene, nano-calcium carbonate and nano-titanium dioxide of specified weight number etc. are added in Modeling Material
Material, obtains high intensity, high-mechanical property, the heat-resisting Modeling Material of heatproof, and then obtains the outlet with good fixed performance
Riser, the riser runner that the present invention produces, has excellent mechanical strength, can be firmly fixed to core and wrap, and assembling is simple,
It is time saving and energy saving, during castings production, do not float and do not run away, substantially increase the quality of production of casting.
Brief description of the drawings
Fig. 1, prior-art devices figure；
Fig. 2, riser runner structure chart of the present invention；
The assembling schematic diagram of Fig. 3, riser runner of the present invention and core bag.
Embodiment
In order to make those skilled in the art more fully understand the technical solution of invention, with reference to embodiment pair
The present invention is described in further detail.
3D printing (3DP) i.e. one kind of rapid shaping technique, it is a kind of based on digital model file, with powder
Shape metal or plastics etc. can jointing material, come the technology of constructed object by way of successively printing.3D printing technique appears in
The 1990s, mid-term, actually folded etc. the newest rapid molding device of technology using photocuring and ply of paper.It with it is common
Print job principle is essentially identical, equipped with " printed materials " such as liquid or powder in printer, after being connected with computer, passes through computer
Control from level to level stacks up " printed material ", and the blueprint on computer is finally become in kind.This printing technique is known as 3D
Three-dimensional printing.
The 3D three-dimensional printings technology that the present invention uses completes the preparation of sand mold riser runner, in order to meet sand mold outlet
Requirement of the riser to the strength of materials, the present invention also improves printed material, in conjunction with the fixation of sand mold riser runner in itself
Structure, and also fixed structural parameters, in terms of material and structure two, improve the mechanical performance of sand mold riser runner jointly,
It can be firmly fixed to wrap with the core that it is used cooperatively, in process of production, not float, do not run away, effectively improve
Casting efficiency, ensure that casting quality.
Above-mentioned elaborating for the present invention, is the embodiment of the present invention below.
Embodiment one
As Figure 2-3,1 is core bag mo(u)ld bottom half, and 2 be iron liquid, and 3 be riser runner, and 4 wrap type for core, and 5 be sand core body, 6
It is external screw thread for venthole, 7,8 be internal thread.
Riser sand core and core bag as shown in Figure 1, be bonded together by the prior art by using Instant cement.And in the present invention
The sand mold riser runner of offer, including sand core body 5, venthole 6, venthole is set along sand core body axis, and runs through sand core
Body, external screw thread 7 is additionally provided with sand core body lower part, and external screw thread pitch is 5-8mm, is preferably 6mm, external screw thread line number is 2-
4, it is preferably 2.The external screw thread thread form angle is 55-62 °, is preferably 60 °, the external screw thread thread height is 3.000-
4.800mm it is preferably 3.612.
Above-mentioned sand mold riser runner further include with the external screw thread cooperate 8,8 internal thread 8 of internal thread be arranged at
In the core bag that the sand mold riser runner is used cooperatively, during assembling, riser runner is screwed into the sand core core assembled and is wrapped
.
Embodiment two
The preparation method of above-mentioned sand mold riser runner, including step：
1) printed material is provided；The material is mixed by the raw material of following parts by weight：30 parts of waterglass quartz sand, water
50 parts of glass chromite sand, 5 parts of resin self-setting sand, 5 parts of graphene, 50 parts of nano-calcium carbonate, 5 parts of nano-titanium dioxide, crosslinking
5 parts of agent；Nano-calcium carbonate particle diameter is 400 nanometers；Nano-titanium dioxide particle diameter is 50 nanometers, crosslinking agent for peroxidating toluoyl or
One kind in tetraalkyl butyl acrylate.
2) 3D printing parameter is provided；On the basis of 3DP increases material printing technique, each casting mold unit is through RP data processing softwares
Layering obtains cross section profile data, this information is changed generation plane scan numerical control code is passed to 3D printing equipment.
3) 3D printing equipment is utilized, printing obtains sand mold riser runner, cleans up surface loose sand, obtain final finished.
Embodiment three
The preparation method of above-mentioned sand mold riser runner, including step：
1) printed material is provided；The material is mixed by the raw material of following parts by weight：50 parts of waterglass quartz sand, water
70 parts of glass chromite sand, 15 parts of resin self-setting sand, 15 parts of graphene, 10 parts of nano-calcium carbonate, 10 parts of nano-titanium dioxide, friendship
Join 10 parts of agent；Nano-calcium carbonate particle diameter is 600 nanometers；Nano-titanium dioxide particle diameter is 150 nanometers, and crosslinking agent is tetraalkyl propylene
One kind in acid butyl ester.
2) 3D printing parameter is provided；On the basis of 3DP increases material printing technique, each casting mold unit is through RP data processing softwares
Layering obtains cross section profile data, this information is changed generation plane scan numerical control code is passed to 3D printing equipment.
3) 3D printing equipment is utilized, printing obtains sand mold riser runner, cleans up surface loose sand, obtain final finished.
Example IV
The preparation method of above-mentioned sand mold riser runner, including step：
1) printed material is provided；The material is mixed by the raw material of following parts by weight：40 parts of water waterglass quartz sand,
60 parts of waterglass chromite sand, 10 parts of resin sand, 10 parts of graphene, 8 parts of nano-calcium carbonate, 8 parts of nano-titanium dioxide, crosslinking agent
8 parts；Nano-calcium carbonate particle diameter is 500 nanometers；Nano-titanium dioxide particle diameter is 100 nanometers, and crosslinking agent is peroxidating toluoyl：Four
In alkyl butyl acrylate=15:8 compounding material.
2) 3D printing parameter is provided；On the basis of 3DP increases material printing technique, each casting mold unit is through RP data processing softwares
Layering obtains cross section profile data, this information is changed generation plane scan numerical control code is passed to 3D printing equipment.
3) 3D printing equipment is utilized, printing obtains sand mold riser runner, cleans up surface loose sand, obtain final finished.
The sand mold riser runner that embodiment 2-4 is prepared is tested.Test event include density, Mohs' hardness,
Refractoriness, thermal conductivity, high-temperature stability.Test result is as shown in Table 1：
Table one, the test result of embodiment two to example IV
| Detection project | Embodiment two | Embodiment three | Example IV |
| Density/g.cm-3 | 5.3 | 5.2 | 5.3 |
| Mohs' hardness | 6 | 6 | 6.5 |
| Refractoriness/DEG C | 2450 | 2400 | 2500 |
| Thermal conductivity/W. (m.K)-1 | 43.92 | 43.96 | 44.03 |
| High-temperature stability | It is good | It is good | It is good |
Above-mentioned test result shows, embodiment two to example IV can meet castings production demand, and example IV
As a result it is optimal, it is preferred embodiment.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (9)
1. a kind of sand mold riser runner, including sand core body, venthole, the venthole is set along sand core body axis, described
Venthole runs through sand core body, it is characterised in that the sand core body lower part is additionally provided with external screw thread, and the external screw thread pitch is
5-8mm, the external screw thread line number are 2-4.
2. sand mold riser runner according to claim 1, it is characterised in that the external screw thread pitch is 6mm, the outer spiral shell
Streakline number is 2.
3. sand mold riser runner according to claim 1, it is characterised in that the external screw thread thread form angle is 55-62 °, institute
It is 3.000-4.800mm to state external screw thread thread height.
4. sand mold riser runner according to claim 1, it is characterised in that further include what is cooperated with the external screw thread
Internal thread, the internal thread are arranged in the core bag being used cooperatively with the sand mold riser runner.
5. the preparation method of sand mold riser runner described in a kind of claim 1, including step：
1) printed material is provided；The material is mixed by the raw material of following parts by weight：30-50 parts of waterglass quartz sand, water
50-70 parts of glass chromite sand, 5-15 parts of resin sand, 5-15 parts of graphene, 5-10 parts of nano-calcium carbonate, nano-titanium dioxide 5-
10 parts, 5-10 parts of crosslinking agent；
2) 3D printing parameter is provided；
3) printing obtains the sand mold riser runner.
6. preparation method according to claim 5, it is characterised in that Modeling Material is by following heavy described in the step 1)
The raw material of amount part mixes：40 parts of waterglass quartz sand, 60 parts of waterglass chromite sand, 10 parts of resin self-setting sand, graphene
10 parts, 8 parts of nano-calcium carbonate, 8 parts of nano-titanium dioxide, 8 parts of crosslinking agent.
7. preparation method according to claim 6, it is characterised in that in the step 1), nano-calcium carbonate particle diameter is
400-600 nanometers.
8. preparation method according to claim 7, it is characterised in that in the step 1), nano-titanium dioxide particle diameter is
50-150 nanometers.
9. preparation method according to claim 8, it is characterised in that in the step 1), crosslinking agent is peroxidating toluene
One kind in acyl or tetraalkyl butyl acrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205098.4A CN107931530A (en) | 2017-11-27 | 2017-11-27 | A kind of sand mold riser runner and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205098.4A CN107931530A (en) | 2017-11-27 | 2017-11-27 | A kind of sand mold riser runner and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931530A true CN107931530A (en) | 2018-04-20 |
Family
ID=61950072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711205098.4A Pending CN107931530A (en) | 2017-11-27 | 2017-11-27 | A kind of sand mold riser runner and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851381A (en) * | 2021-03-01 | 2021-05-28 | 曲阜市铸造材料厂 | Preparation method for reusing thermal insulation cap opening |
| CN112935191A (en) * | 2021-01-28 | 2021-06-11 | 共享装备股份有限公司 | Air outlet riser |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203330351U (en) * | 2013-06-08 | 2013-12-11 | 昌邑中铸铸业有限公司 | Novel bleeded riser structure |
| CN203972771U (en) * | 2014-06-28 | 2014-12-03 | 浙江凯顺铸造有限公司 | Multi-section type casting rising head |
| CN104308072A (en) * | 2014-09-16 | 2015-01-28 | 南昌航空大学 | Carbon fiber-based precoated sand material for selective laser sintering and preparation method thereof |
| US20150107795A1 (en) * | 2013-10-21 | 2015-04-23 | Ohannes G. Mangoyan | Method and System for Casting Metal |
| CN204413059U (en) * | 2015-01-21 | 2015-06-24 | 安徽合力股份有限公司合肥铸锻厂 | Casting and molding pulls out rising head stake with retrodicting |
| CN105598375A (en) * | 2016-01-11 | 2016-05-25 | 共享装备股份有限公司 | Air outlet system for casting |
| CN107189385A (en) * | 2017-07-03 | 2017-09-22 | 重庆三迪时空网络科技有限公司 | A kind of graphene 3D printing material of high intensity |
-
2017
- 2017-11-27 CN CN201711205098.4A patent/CN107931530A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203330351U (en) * | 2013-06-08 | 2013-12-11 | 昌邑中铸铸业有限公司 | Novel bleeded riser structure |
| US20150107795A1 (en) * | 2013-10-21 | 2015-04-23 | Ohannes G. Mangoyan | Method and System for Casting Metal |
| CN203972771U (en) * | 2014-06-28 | 2014-12-03 | 浙江凯顺铸造有限公司 | Multi-section type casting rising head |
| CN104308072A (en) * | 2014-09-16 | 2015-01-28 | 南昌航空大学 | Carbon fiber-based precoated sand material for selective laser sintering and preparation method thereof |
| CN204413059U (en) * | 2015-01-21 | 2015-06-24 | 安徽合力股份有限公司合肥铸锻厂 | Casting and molding pulls out rising head stake with retrodicting |
| CN105598375A (en) * | 2016-01-11 | 2016-05-25 | 共享装备股份有限公司 | Air outlet system for casting |
| CN107189385A (en) * | 2017-07-03 | 2017-09-22 | 重庆三迪时空网络科技有限公司 | A kind of graphene 3D printing material of high intensity |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935191A (en) * | 2021-01-28 | 2021-06-11 | 共享装备股份有限公司 | Air outlet riser |
| CN112935191B (en) * | 2021-01-28 | 2023-03-03 | 共享装备股份有限公司 | Air outlet riser |
| CN112851381A (en) * | 2021-03-01 | 2021-05-28 | 曲阜市铸造材料厂 | Preparation method for reusing thermal insulation cap opening |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104625978B (en) | A kind of heavy-load abraded steel billet emery wheel of big specification high-speed resin | |
| JP3878496B2 (en) | Mold sand and manufacturing method thereof | |
| CN105033254B (en) | Manufacture process technology based on CNTs and laser gain material and prepare the method that high-performance in_situ TiC strengthens titanium matrix composite workpiece | |
| CN102029354B (en) | Moulding sand additive for green sand casting of metal castings | |
| CN105172142B (en) | A kind of 3D printing prepares carbon/carbon compound material method | |
| CN107931530A (en) | A kind of sand mold riser runner and preparation method | |
| CN104772429A (en) | High-performance ceramic mold shell for directional solidification, and production technology thereof | |
| CN104446392A (en) | Calcium-doped inorganic nanocomposite material for 3D printing and preparation method of calcium-doped inorganic nanocomposite material | |
| CN105834351A (en) | High-temperature resistant casting mold material | |
| CN110465622A (en) | Wind-driven generator S. G. Cast Iron Wheel Hub foundry facing and preparation method and application | |
| CN101992265A (en) | Method for manufacturing resin casting die used for modeling sodium silicate self-hardening sand | |
| Low et al. | Composite Materials: Manufacturing, Properties and Applications | |
| CN103587015A (en) | Resin mold and mold making technology | |
| CN114573325A (en) | Low-carbon magnesia carbon brick and preparation method thereof | |
| CN105750481B (en) | A kind of water based paint for preventing large-scale steel-casting orange peel defect | |
| CN104446393A (en) | Yttrium-doped inorganic nanocomposite material for 3D printing and preparation method of yttrium-doped inorganic nanocomposite material | |
| CN106180542A (en) | Furan Resin-Bonded Sand wind-powered electricity generation G. Iron Castings surface anti-seepage sulfur coating | |
| CN110028277A (en) | A kind of 3D printing binder and preparation method thereof | |
| CN107716865A (en) | A kind of method for carrying out surface recombination to base steel material using lost foam casting | |
| Zitian et al. | Status quo and development trend of lost foam casting technology | |
| Yu et al. | Study and application status of additive manufacturing of typical inorganic non-metallic materials | |
| CN108746234A (en) | A kind of production method of tubing string shape component of machine | |
| CN104446394A (en) | Chromium-doped inorganic nanocomposite material for 3D printing and preparation method of chromium-doped inorganic nanocomposite material | |
| Singamneni et al. | Rapid casting of light metals: an experimental investigation using taguchi methods | |
| CN104446517A (en) | Cobalt-doped inorganic nanocomposite material for 3D printing and preparation method of cobalt-doped inorganic nanocomposite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |