CN105562582A - Casting sand for pump body sand mold casting - Google Patents
Casting sand for pump body sand mold casting Download PDFInfo
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- CN105562582A CN105562582A CN201610075238.XA CN201610075238A CN105562582A CN 105562582 A CN105562582 A CN 105562582A CN 201610075238 A CN201610075238 A CN 201610075238A CN 105562582 A CN105562582 A CN 105562582A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses casting sand for pump body sand mold casting, and relates to the technical field of pump casting. The casing sand is composed of, by weight, 120 parts to 130 parts of silica sand, 15 parts to 20 parts of mineral powder, 10 parts to 15 parts of sodium carboxymethylcellulose, 10 parts to 15 parts of asbestos powder, 8 parts to 12 parts of plant ash, 6 parts to 10 parts of coconut chaff, 6 parts to 10 parts of white carbon black, 5 parts to 8 parts of magnesium stearate, 4 parts to 6 parts of pectin, 3 parts to 5 parts of graphite powder, 2 parts to 3 parts of nanometer aluminum oxide and 100 parts to 150 parts of water. The casting sand has the excellent refractoriness and heat stability, and cannot have the chemical reaction with molten metal; and molding, breathability and liquid metal penetration resistance are good, and the gas-forming amount in the casting process can be reduced, so that defects of sand holes, air holes, carbon slag and the like are prevented from appearing in a pump body, and the pump body quality is improved.
Description
Technical field:
The present invention relates to pump casting technology field, be specifically related to a kind of pump housing sand casting casting model powder.
Background technology:
Sand casting is a kind of casting method of producing foundry goods, and steel, iron and most of non-ferrous alloy casting all can obtain with sand mould casting method.The Modeling Material used due to sand casting is cheap and easy to get, and Casting mold manufacturing is easy, and to the single-piece production of foundry goods, produce by batch and produce in a large number and all can adapt to, for a long time, be the basic technology in Foundry Production always.The basic raw material manufacturing sand mold is casting model powder and moulding sand binder.The most frequently used casting model powder is siliceous sand.The high-temperature behavior of silica sand then uses the special sand such as zircon sand, chromite sand, emergy when can not meet instructions for use.But silica sand relatively, the price of these special sand is slightly high, adds production cost, is not suitable for Foundry Works on a small scale.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of refractoriness, heat endurance strong and the pump housing sand casting casting model powder of mouldability, gas permeability and anti-liquid metal good penetrability.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of pump housing sand casting casting model powder, be made up of the raw material of following parts by weight:
Silica sand 120-130 part, mineral powder 15-20 part, sodium carboxymethylcellulose 10-15 part, flake asbestos 10-15 part, plant ash 8-12 part, coconut palm chaff 6-10 part, white carbon 6-10 part, dolomol 5-8 part, pectin 4-6 part, graphite powder 3-5 part, nano aluminium oxide 2-3 part, water 100-150 part;
Its preparation method is as follows:
(1) sodium carboxymethylcellulose and plant ash are added to the water, stir after forming even slurry and add mineral powder and flake asbestos, mix, mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, after pending liquid naturally cools to room temperature, obtain material I;
(2) silica sand, white carbon and graphite powder are heated to 100-110 DEG C of insulation mixing 10min, then add dolomol and pectin, continue to be heated to 120-130 DEG C of insulation mixing 10min, obtain material II;
(3) in material II, add material I, coconut palm chaff and nano aluminium oxide, mix rear feeding freeze drier, make 50-100 object particle finally by pulverizer.
SiO in described silica sand
2content is higher than 98%.
Described mineral powder is made up of the raw material of following parts by weight: colliery powder 20-25 part, attapulgite 10-15 part, zeolite powder 8-13 part, crushed crude pearlite 6-11 part, stearic acid 5-9 part, paraffin oil 5-9 part, nanometer rubber powder 4-7 part, sodium chloride 3-5 part, polyacrylamide 2-4 part, vermiculite power 2-4 part, zinc oxide 1-2 part, realgar 1-2 part, its preparation method is: first colliery powder and attapulgite are added in 5 times of w ethanol, stearic acid and nanometer rubber powder is added after soaking 1h, again in microwave frequency 2450MHz, microwave treatment 15min under power 600W, sodium chloride and polyacrylamide is added after naturally cooling to room temperature, mix and be placed on 0-5 DEG C of standing 30min, filter, filter residue is ground into powder after vacuum drying, then zeolite powder is added, crushed crude pearlite, paraffin oil, vermiculite power, zinc oxide and realgar, fully mix.
Described vermiculite power needs through pretreatment before using, its processing method is: add in 200-250 part isopropyl alcohol by 100-120 part vermiculite power and 25-35 part maleic anhydride, mixture is prior to process 30min ultrasonic under supersonic frequency 40kHz, power 50W, be heated to reflux state insulation 15min again, to be cooledly to room temperature, add 7-11 part sodium carboxymethylcellulose and 3-6 part soda ash, mix rear standing 1h, then send into vacuum drier, gained solid makes powder through pulverizer.
The invention has the beneficial effects as follows: the present invention take silica sand as primary raw material, be aided with several functions auxiliary agent and obtain pump housing sand casting casting model powder, this casting model powder has excellent refractoriness and heat endurance, can not with molten metal generation chemical reaction, and mouldability, gas permeability and anti-liquid metal good penetrability, the gas forming amount in casting process can be reduced, thus prevent the pump housing from occurring the defects such as sand holes, pore, carbon slag, improve pump housing quality.
Detailed description of the invention:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
(1) 10 parts of sodium carboxymethylcelluloses and 8 parts of plant ash are added in 130 parts of water, stir after forming even slurry and add 15 parts of mineral powders and 12 parts of flake asbestos, mix, mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, after pending liquid naturally cools to room temperature, obtain material I;
(2) 120 parts of silica sands, 8 parts of white carbons and 3 parts of graphite powders are heated to 100-110 DEG C of insulation mixing 10min, then add 5 parts of dolomols and 6 parts of pectin, continue to be heated to 120-130 DEG C of insulation mixing 10min, obtain material II;
(3) in material II, add material I, 6 parts of coconut palm chaffs and 2 parts of nano aluminium oxides, mix rear feeding freeze drier, make 50-100 object particle finally by pulverizer.
SiO in silica sand
2content is higher than 98%.
The preparation of mineral powder: first 20 parts of colliery powders and 15 parts of attapulgites are added in 5 times of w ethanol, 5 parts of stearic acid and 6 parts of nanometer rubber powders are added after soaking 1h, microwave treatment 15min under microwave frequency 2450MHz, power 600W again, 3 parts of sodium chloride and 2 parts of polyacrylamides are added after naturally cooling to room temperature, mix and be placed on 0-5 DEG C of standing 30min, filter, filter residue is ground into powder after vacuum drying, then add 8 parts of zeolite powders, 8 parts of crushed crude pearlites, 5 parts of paraffin oils, 2 portions of vermiculite powers, 2 parts of zinc oxide and 1 portion of realgar, fully mix.
The preparation of vermiculite power: 100 parts of vermiculite powers and 25 parts of maleic anhydrides are added in 200 parts of isopropyl alcohols, mixture is prior to process 30min ultrasonic under supersonic frequency 40kHz, power 50W, be heated to reflux state insulation 15min again, to be cooledly to room temperature, add 8 parts of sodium carboxymethylcelluloses and 3 portions of soda ash, mix rear standing 1h, then send into vacuum drier, gained solid makes powder through pulverizer.
Embodiment 2
(1) 15 parts of sodium carboxymethylcelluloses and 10 parts of plant ash are added in 150 parts of water, stir after forming even slurry and add 20 parts of mineral powders and 10 parts of flake asbestos, mix, mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, after pending liquid naturally cools to room temperature, obtain material I;
(2) 130 parts of silica sands, 10 parts of white carbons and 5 parts of graphite powders are heated to 100-110 DEG C of insulation mixing 10min, then add 7 parts of dolomols and 5 parts of pectin, continue to be heated to 120-130 DEG C of insulation mixing 10min, obtain material II;
(3) in material II, add material I, 8 parts of coconut palm chaffs and 3 parts of nano aluminium oxides, mix rear feeding freeze drier, make 50-100 object particle finally by pulverizer.
SiO in silica sand
2content is higher than 98%.
The preparation of mineral powder: first 25 parts of colliery powders and 12 parts of attapulgites are added in 5 times of w ethanol, 8 parts of stearic acid and 4 parts of nanometer rubber powders are added after soaking 1h, microwave treatment 15min under microwave frequency 2450MHz, power 600W again, 5 parts of sodium chloride and 4 parts of polyacrylamides are added after naturally cooling to room temperature, mix and be placed on 0-5 DEG C of standing 30min, filter, filter residue is ground into powder after vacuum drying, then add 10 parts of zeolite powders, 6 parts of crushed crude pearlites, 8 parts of paraffin oils, 4 portions of vermiculite powers, 1 part of zinc oxide and 2 portions of realgars, fully mix.
The preparation of vermiculite power: 120 parts of vermiculite powers and 30 parts of maleic anhydrides are added in 250 parts of isopropyl alcohols, mixture is prior to process 30min ultrasonic under supersonic frequency 40kHz, power 50W, be heated to reflux state insulation 15min again, to be cooledly to room temperature, add 10 parts of sodium carboxymethylcelluloses and 5 portions of soda ash, mix rear standing 1h, then send into vacuum drier, gained solid makes powder through pulverizer.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a pump housing sand casting casting model powder, is characterized in that, is made up of the raw material of following parts by weight:
Silica sand 120-130 part, mineral powder 15-20 part, sodium carboxymethylcellulose 10-15 part, flake asbestos 10-15 part, plant ash 8-12 part, coconut palm chaff 6-10 part, white carbon 6-10 part, dolomol 5-8 part, pectin 4-6 part, graphite powder 3-5 part, nano aluminium oxide 2-3 part, water 100-150 part;
Its preparation method is as follows:
(1) sodium carboxymethylcellulose and plant ash are added to the water, stir after forming even slurry and add mineral powder and flake asbestos, mix, mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, after pending liquid naturally cools to room temperature, obtain material I;
(2) silica sand, white carbon and graphite powder are heated to 100-110 DEG C of insulation mixing 10min, then add dolomol and pectin, continue to be heated to 120-130 DEG C of insulation mixing 10min, obtain material II;
(3) in material II, add material I, coconut palm chaff and nano aluminium oxide, mix rear feeding freeze drier, make 50-100 object particle finally by pulverizer.
2. pump housing sand casting casting model powder according to claim 1, is characterized in that: the SiO in described silica sand
2content is higher than 98%.
3. pump housing sand casting casting model powder according to claim 1, it is characterized in that, described mineral powder is made up of the raw material of following parts by weight: colliery powder 20-25 part, attapulgite 10-15 part, zeolite powder 8-13 part, crushed crude pearlite 6-11 part, stearic acid 5-9 part, paraffin oil 5-9 part, nanometer rubber powder 4-7 part, sodium chloride 3-5 part, polyacrylamide 2-4 part, vermiculite power 2-4 part, zinc oxide 1-2 part, realgar 1-2 part, its preparation method is: first colliery powder and attapulgite are added in 5 times of w ethanol, stearic acid and nanometer rubber powder is added after soaking 1h, again in microwave frequency 2450MHz, microwave treatment 15min under power 600W, sodium chloride and polyacrylamide is added after naturally cooling to room temperature, mix and be placed on 0-5 DEG C of standing 30min, filter, filter residue is ground into powder after vacuum drying, then zeolite powder is added, crushed crude pearlite, paraffin oil, vermiculite power, zinc oxide and realgar, fully mix.
4. pump housing sand casting casting model powder according to claim 3, it is characterized in that: described vermiculite power needs through pretreatment before using, its processing method is: add in 200-250 part isopropyl alcohol by 100-120 part vermiculite power and 25-35 part maleic anhydride, mixture is prior to supersonic frequency 40kHz, ultrasonic process 30min under power 50W, be heated to reflux state insulation 15min again, to be cooledly to room temperature, add 7-11 part sodium carboxymethylcellulose and 3-6 part soda ash, mix rear standing 1h, then vacuum drier is sent into, gained solid makes powder through pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075238.XA CN105562582A (en) | 2016-02-01 | 2016-02-01 | Casting sand for pump body sand mold casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075238.XA CN105562582A (en) | 2016-02-01 | 2016-02-01 | Casting sand for pump body sand mold casting |
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| CN105562582A true CN105562582A (en) | 2016-05-11 |
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| CN201610075238.XA Pending CN105562582A (en) | 2016-02-01 | 2016-02-01 | Casting sand for pump body sand mold casting |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096871A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Accelerate precoated sand of cast member shaping speed and preparation method thereof |
| CN107096870A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Reduce precoated sand of cast member surface detail and preparation method thereof |
| CN107282861A (en) * | 2017-07-03 | 2017-10-24 | 李吕军 | Reduce precoated sand of cast member surface coloured speckle and preparation method thereof |
| CN107282862A (en) * | 2017-07-03 | 2017-10-24 | 李吕军 | Reduce precoated sand of cast member surface scab amount and preparation method thereof |
| CN107282858A (en) * | 2017-06-14 | 2017-10-24 | 安徽华昊机械制造有限公司 | A kind of pump housing sand casting casting model powder |
| CN107321910A (en) * | 2017-07-03 | 2017-11-07 | 李吕军 | Cracking resistance coating agent for model casting casting and preparation method thereof |
| CN107325469A (en) * | 2017-06-26 | 2017-11-07 | 安徽安顺硅基玻璃原料有限公司 | A kind of silica sand pretreating agent and its application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05200478A (en) * | 1992-01-28 | 1993-08-10 | Hitachi Metals Ltd | Manufacture of spheroidal graphite cast iron |
| CN103341587A (en) * | 2013-07-09 | 2013-10-09 | 临沂市铸宝水表有限公司 | Precoated sand and burn-free regeneration technology thereof |
| 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 |
| CN104985109A (en) * | 2015-07-06 | 2015-10-21 | 安徽三联泵业股份有限公司 | Modified casting sand used for casting pump body and adopting furan resin loaded with carbon nanometer fibers |
| CN105033167A (en) * | 2015-07-06 | 2015-11-11 | 安徽三联泵业股份有限公司 | Modified pump body casting foundry sand with furan resin loaded with nanosized graphite |
-
2016
- 2016-02-01 CN CN201610075238.XA patent/CN105562582A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05200478A (en) * | 1992-01-28 | 1993-08-10 | Hitachi Metals Ltd | Manufacture of spheroidal graphite cast iron |
| CN103341587A (en) * | 2013-07-09 | 2013-10-09 | 临沂市铸宝水表有限公司 | Precoated sand and burn-free regeneration technology thereof |
| 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 |
| CN104985109A (en) * | 2015-07-06 | 2015-10-21 | 安徽三联泵业股份有限公司 | Modified casting sand used for casting pump body and adopting furan resin loaded with carbon nanometer fibers |
| CN105033167A (en) * | 2015-07-06 | 2015-11-11 | 安徽三联泵业股份有限公司 | Modified pump body casting foundry sand with furan resin loaded with nanosized graphite |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282858A (en) * | 2017-06-14 | 2017-10-24 | 安徽华昊机械制造有限公司 | A kind of pump housing sand casting casting model powder |
| CN107325469A (en) * | 2017-06-26 | 2017-11-07 | 安徽安顺硅基玻璃原料有限公司 | A kind of silica sand pretreating agent and its application |
| CN107096871A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Accelerate precoated sand of cast member shaping speed and preparation method thereof |
| CN107096870A (en) * | 2017-07-03 | 2017-08-29 | 李吕军 | Reduce precoated sand of cast member surface detail and preparation method thereof |
| CN107282861A (en) * | 2017-07-03 | 2017-10-24 | 李吕军 | Reduce precoated sand of cast member surface coloured speckle and preparation method thereof |
| CN107282862A (en) * | 2017-07-03 | 2017-10-24 | 李吕军 | Reduce precoated sand of cast member surface scab amount and preparation method thereof |
| CN107321910A (en) * | 2017-07-03 | 2017-11-07 | 李吕军 | Cracking resistance coating agent for model casting casting and preparation method thereof |
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Application publication date: 20160511 |
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