CN106077435A - A kind of train wheel casting wet type clay core sand and preparation method thereof - Google Patents
A kind of train wheel casting wet type clay core sand and preparation method thereof Download PDFInfo
- Publication number
- CN106077435A CN106077435A CN201610681038.9A CN201610681038A CN106077435A CN 106077435 A CN106077435 A CN 106077435A CN 201610681038 A CN201610681038 A CN 201610681038A CN 106077435 A CN106077435 A CN 106077435A
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- sand
- preparation
- core sand
- train wheel
- wet type
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Classifications
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- 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
- 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
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
-
- 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
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of train wheel casting wet type clay core sand and preparation method thereof, it is formed by the preparation of raw material of following weight portion: quartz sand 160 180, pearlife 30 40, scapolite 20 30, porous manganese slag 25 30, stone coal slag 15 20, illite/smectite mixed layer clay 15 20, hydroxypropyl Oxytarch succinate sodium 24, pulullan polysaccharide 23, cation guar gum 45, aluminium oxide 46, molybdenum carbide 35, silicon phosphate 68, calcium zincates 23, discarded safety glass micropowder 35, Testa oryzae oil 12, lanocerin 34, inulin lauryl carbamate 46, water is appropriate.Core sand green compression strength of the present invention is high, and breathability is high, collapsibility is good；By illite/smectite mixed layer clay is modified, the viscosity of core sand is increased together with pulullan polysaccharide, hydroxypropyl Oxytarch succinate sodium etc., improve its green compression strength, Testa oryzae oil, lanocerin is used to process the material surfaces such as quartz sand, increase its collapsibility, raw material and the resistance to elevated temperatures that improve core sand such as the pearlife of interpolation, scapolite, calcium zincates, molybdenum carbide.
Description
Invention field
The invention belongs to foundary industry field, concretely relate to a kind of train wheel casting wet type clay core sand and
Its preparation method.
Background technology
Railway development is closely bound up with people's lives and national development, and along with railway speed raising, train is faced with speed-raising
With heavy duty General Promotion.Therefore train part is proposed higher prescription, and important train part is casting substantially
Produce, thus be necessarily strict with casting quality.On train running part and bearing part often can by impact, bending,
The stress effect that shearing, stretching etc. are complicated, once causes fracture, will result in huge security incident because of defect, the most right
Its castability requires height.
Steel casting production technology mainly includes green sand technique, water virus, resin sand technique etc..From foundry goods
From the point of view of size, train wheel belongs to middle-size and small-size steel-casting, the casting process scheme of the most existing all kinds of middle-size and small-size steel-castings
In, due to Technical Development History, produce the many reasons impacts such as custom, raw material, the production work that different regions and country use
Skill has bigger difference.North America and Japan mainly use green sand and resin bonded sand mould, Europe and Russia mainly to use water glass
Glass sand and resin bonded sand mould, China uses waterglass sand mold, a small amount of employing green sand and resin bonded sand mould mostly.Different process is equal
Having features, they have the example of successful Application.Green sand is to be added by roughing sand, illite/smectite mixed layer clay, starch based
Agent and water form.One of important feature of green sand is exactly Reusability.Green sand produces railway steel castings, though
So there is certain risk and a quality control difficult problem, but production efficiency be high, low cost, with short production cycle, easily realize mechanization, from
Dynamic metaplasia is produced.
Summary of the invention
The invention aims to make up the defect of prior art, it is provided that wet type clay core is used in a kind of train wheel casting
Sand and preparation method thereof.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of train wheel casting wet type clay core sand, is formed by the preparation of raw material of following weight portion: quartz sand 160-180,
Pearlife 30-40, scapolite 20-30, porous manganese slag 25-30, stone coal slag 15-20, illite/smectite mixed layer clay 15-20, hydroxypropyl oxygen
Change starch succinate sodium 2-4, pulullan polysaccharide 2-3, cation guar gum 4-5, aluminium oxide 4-6, molybdenum carbide 3-5, silicon phosphate
6-8, calcium zincates 2-3, discarded safety glass micropowder 3-5, Testa oryzae oil 1-2, lanocerin 3-4, inulin lauryl carbamate 4-
6, water is appropriate.
The preparation method of a kind of train wheel casting wet type clay core sand, comprises the following steps:
(1) by scapolite, porous manganese slag, stone coal slag mix homogeneously, it is broken into 100-120 mesh, is then fed into 1200-1300 DEG C and forges
Burn and stove calcined 120-150min, after taking-up while hot with pearlife, quartz sand, calcium zincates, discarded safety glass micropowder, stirring
10-15min post-drying, is broken into the granule of 80-100 mesh size, obtains mixed sand；
(2) illite/smectite mixed layer clay, hydroxypropyl Oxytarch succinate sodium, pulullan polysaccharide, cation guar gum mixing are stirred
Mix uniformly, obtain modified binder；
(3) mixed sand, aluminium oxide, molybdenum carbide, silicon phosphate, inulin lauryl carbamate are poured into and 3-is dry mixed in puddle mixer
5min, is subsequently adding raw material and the water of mixture gross mass 2-3% such as modified binder, Testa oryzae oil, lanocerin, at 400-
Shake out after mixing 3-5min under the rotating speed of 500r/min, to obtain final product.
Beneficial effects of the present invention:
The core sand green compression strength that the present invention prepares is high, and breathability is high, collapsibility is good；By illite/smectite mixed layer clay is modified,
Increase the viscosity of core sand together with pulullan polysaccharide, hydroxypropyl Oxytarch succinate sodium, cation guar gum, improve it wet
Compressive Strength, uses Testa oryzae oil, lanocerin to process the material surface such as quartz sand, increases its collapsibility, the pearlife of interpolation,
Raw material and the resistances to elevated temperatures that improve core sand such as scapolite, porous manganese slag, stone coal slag, calcium zincates, molybdenum carbide.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
Embodiment 1:
A kind of train wheel casting wet type clay core sand, is formed by the preparation of raw material of following weight portion (kg): quartz sand 160,
Pearlife 30, scapolite 20, porous manganese slag 25, stone coal slag 15, illite/smectite mixed layer clay 15, hydroxypropyl Oxytarch succinate sodium
2, pulullan polysaccharide 2, cation guar gum 4, aluminium oxide 4, molybdenum carbide 3, silicon phosphate 6, calcium zincates 2, discarded safety glass micropowder
3, Testa oryzae oil 1, lanocerin 3, inulin lauryl carbamate 4, water are appropriate.
The preparation method of a kind of train wheel casting wet type clay core sand, comprises the following steps:
(1) by scapolite, porous manganese slag, stone coal slag mix homogeneously, it is broken into 100-120 mesh, is then fed into 1200-1300 DEG C and forges
Burn and stove calcined 120-150min, after taking-up while hot with pearlife, quartz sand, calcium zincates, discarded safety glass micropowder, stirring
10-15min post-drying, is broken into the granule of 80-100 mesh size, obtains mixed sand；
(2) illite/smectite mixed layer clay, hydroxypropyl Oxytarch succinate sodium, pulullan polysaccharide, cation guar gum mixing are stirred
Mix uniformly, obtain modified binder；
(3) mixed sand, aluminium oxide, molybdenum carbide, silicon phosphate, inulin lauryl carbamate are poured into and 3-is dry mixed in puddle mixer
5min, is subsequently adding raw material and the water of mixture gross mass 2-3% such as modified binder, Testa oryzae oil, lanocerin, at 400-
Shake out after mixing 3-5min under the rotating speed of 500r/min, to obtain final product.
Embodiment 2:
A kind of train wheel casting wet type clay core sand, is formed by the preparation of raw material of following weight portion (kg): quartz sand 170,
Pearlife 35, scapolite 25, porous manganese slag 27.5, stone coal slag 17.5, illite/smectite mixed layer clay 17.5, hydroxypropyl Oxytarch succinum
Acid esters sodium 3, pulullan polysaccharide 2.5, cation guar gum 4.5, aluminium oxide 5, molybdenum carbide 4, silicon phosphate 7, calcium zincates 2.5, discarded
Safety glass micropowder 4, Testa oryzae oil 1.5, lanocerin 3.5, inulin lauryl carbamate 5, water are appropriate.
Preparation method is with embodiment 1.
Embodiment 3:
A kind of train wheel casting wet type clay core sand, is formed by the preparation of raw material of following weight portion (kg): quartz sand 180,
Pearlife 40, scapolite 30, porous manganese slag 30, stone coal slag 20, illite/smectite mixed layer clay 20, hydroxypropyl Oxytarch succinate sodium
4, pulullan polysaccharide 3, cation guar gum 5, aluminium oxide 6, molybdenum carbide 5, silicon phosphate 8, calcium zincates 3, discarded safety glass micropowder
5, Testa oryzae oil 2, lanocerin 4, inulin lauryl carbamate 6, water are appropriate.
Preparation method is with embodiment 1.
The train wheel casting performance test results such as following table institute of wet type clay core sand that above-described embodiment 1-3 prepares
Show:
Claims (2)
1. a train wheel casting wet type clay core sand, it is characterised in that formed by the preparation of raw material of following weight portion: stone
Sand 160-180, pearlife 30-40, scapolite 20-30, porous manganese slag 25-30, stone coal slag 15-20, illite/smectite mixed layer clay 15-
20, hydroxypropyl Oxytarch succinate sodium 2-4, pulullan polysaccharide 2-3, cation guar gum 4-5, aluminium oxide 4-6, molybdenum carbide
3-5, silicon phosphate 6-8, calcium zincates 2-3, discarded safety glass micropowder 3-5, Testa oryzae oil 1-2, lanocerin 3-4, inulin lauryl base ammonia
Carbamate 4-6, water are appropriate.
The preparation method of a kind of train wheel casting wet type clay core sand the most according to claim 1, it is characterised in that
Comprise the following steps:
(1) by scapolite, porous manganese slag, stone coal slag mix homogeneously, it is broken into 100-120 mesh, is then fed into 1200-1300 DEG C and forges
Burn and stove calcined 120-150min, after taking-up while hot with pearlife, quartz sand, calcium zincates, discarded safety glass micropowder, stirring
10-15min post-drying, is broken into the granule of 80-100 mesh size, obtains mixed sand；
(2) illite/smectite mixed layer clay, hydroxypropyl Oxytarch succinate sodium, pulullan polysaccharide, cation guar gum mixing are stirred
Mix uniformly, obtain modified binder；
(3) mixed sand, aluminium oxide, molybdenum carbide, silicon phosphate, inulin lauryl carbamate are poured into and 3-is dry mixed in puddle mixer
5min, is subsequently adding raw material and the water of mixture gross mass 2-3% such as modified binder, Testa oryzae oil, lanocerin, at 400-
Shake out after mixing 3-5min under the rotating speed of 500r/min, to obtain final product.
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| CN201610681038.9A CN106077435A (en) | 2016-08-18 | 2016-08-18 | A kind of train wheel casting wet type clay core sand and preparation method thereof |
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| CN201610681038.9A CN106077435A (en) | 2016-08-18 | 2016-08-18 | A kind of train wheel casting wet type clay core sand and preparation method thereof |
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| CN201610681038.9A Pending CN106077435A (en) | 2016-08-18 | 2016-08-18 | A kind of train wheel casting wet type clay core sand and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191796A (en) * | 2020-11-26 | 2021-01-08 | 安徽华飞机械铸锻有限公司 | Preparation method of high-temperature-resistant casting molding sand |
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| CN101925424A (en) * | 2008-01-22 | 2010-12-22 | 花王株式会社 | Structure for foundry production |
| CN102639264A (en) * | 2009-09-10 | 2012-08-15 | 力格奈特株式会社 | Binder-coated refractory, casting mold and method for producing casting mold |
| CN103567356A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Sodium silicate sand with high wet-compressive strength and preparation method thereof |
| CN105478656A (en) * | 2015-12-31 | 2016-04-13 | 安徽创奇乐智能游乐设备有限公司 | High-green-compression-strength green moulding sand for iron casting and preparation method of high-green-compression-strength green moulding sand |
| CN105562584A (en) * | 2015-12-31 | 2016-05-11 | 安徽创奇乐智能游乐设备有限公司 | Easily-collapsing molding sand for aluminum alloy castings and preparing method for easily-collapsing molding sand |
-
2016
- 2016-08-18 CN CN201610681038.9A patent/CN106077435A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925424A (en) * | 2008-01-22 | 2010-12-22 | 花王株式会社 | Structure for foundry production |
| CN102639264A (en) * | 2009-09-10 | 2012-08-15 | 力格奈特株式会社 | Binder-coated refractory, casting mold and method for producing casting mold |
| CN103567356A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Sodium silicate sand with high wet-compressive strength and preparation method thereof |
| CN105478656A (en) * | 2015-12-31 | 2016-04-13 | 安徽创奇乐智能游乐设备有限公司 | High-green-compression-strength green moulding sand for iron casting and preparation method of high-green-compression-strength green moulding sand |
| CN105562584A (en) * | 2015-12-31 | 2016-05-11 | 安徽创奇乐智能游乐设备有限公司 | Easily-collapsing molding sand for aluminum alloy castings and preparing method for easily-collapsing molding sand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191796A (en) * | 2020-11-26 | 2021-01-08 | 安徽华飞机械铸锻有限公司 | Preparation method of high-temperature-resistant casting molding sand |
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Application publication date: 20161109 |
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