CN116532612A - Resin sand for sand casting and preparation method thereof - Google Patents
Resin sand for sand casting and preparation method thereof Download PDFInfo
- Publication number
- CN116532612A CN116532612A CN202310717672.3A CN202310717672A CN116532612A CN 116532612 A CN116532612 A CN 116532612A CN 202310717672 A CN202310717672 A CN 202310717672A CN 116532612 A CN116532612 A CN 116532612A
- Authority
- CN
- China
- Prior art keywords
- sand
- resin
- casting
- accounts
- raw
- 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
- 239000004576 sand Substances 0.000 title claims abstract description 79
- 239000011347 resin Substances 0.000 title claims abstract description 59
- 229920005989 resin Polymers 0.000 title claims abstract description 59
- 238000007528 sand casting Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000004575 stone Substances 0.000 claims abstract description 12
- 239000006004 Quartz sand Substances 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 6
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical group C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 3
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Classifications
-
- 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
- B22C1/20—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 of organic agents
- B22C1/22—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 of organic agents of resins or rosins
- B22C1/2206—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 of organic agents of resins or rosins obtained by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2213—Polyalkenes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses resin sand for sand casting, which comprises resin, a curing agent, an accelerator and sand stone, wherein the sand stone is composed of quartz sand and reclaimed sand, the curing agent accounts for 1-2%, the resin accounts for 2-4%, the accelerator accounts for 0.5-1.5%, and the sand stone accounts for 95-96.5%. Compared with the prior art, the invention has the advantages that: the resin sand for sand casting and the preparation method thereof are convenient to regenerate and good in use effect.
Description
Technical Field
The invention relates to the technical field of resin sand, in particular to resin sand for sand casting and a preparation method thereof.
Background
Resin sand is a novel molding sand widely used in sand casting. Compared with the traditional quartz sand, the resin sand has good forming performance, temperature control performance and smooth casting surface, reduces the time and cost for manufacturing the casting, and is popular in the sand casting industry.
The existing resin sand has high cost, unsatisfactory collapsibility and difficult regeneration.
Disclosure of Invention
The invention aims to overcome the technical defects and provide the resin sand for sand casting and the preparation method thereof, which are convenient to regenerate and good in use effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the resin sand for sand casting includes resin, curing agent, promoter and sand stone, in which the sand stone is formed from quartz sand and regenerated sand, in which the curing agent is 1% -2%, resin is 2% -4%, promoter is 0.5-1.5% and sand stone is 95% -96.5%.
As an improvement, the resin is polypropylene and the curing agent is hexamethylenetetramine.
A process for preparing resin sand used for sand casting includes such steps as preparing liquid resin from raw materials, choosing quartz sand and regenerated sand, sieving, baking, coating resin sand on the raw sand, forming a resin sand layer in mould, solidifying, and solidifying.
As an improvement, the resin sand is coated on the raw sand by manual coating or automatic spraying.
As an improvement, the used resin sand is subjected to treatments such as separation, cleaning, drying and the like, raw sand particles are removed, and the resin sand can be recycled.
Compared with the prior art, the invention has the advantages that: the resin sand is prepared by means of the cooperation of the raw sand such as quartz sand, reclaimed sand and the like and the resin, pollution is reduced, reclaimed sand can be recycled, resin sand is smeared on the raw sand in the process of casting, and a lamellar resin sand layer is formed in the casting mould, so that casting processing is convenient, and meanwhile, the used resin sand is subjected to separation, cleaning, drying and other treatments, raw sand particles are removed, and the resin sand can be recycled.
Detailed Description
The present invention will be described in further detail below.
The resin sand for sand casting includes resin, curing agent, promoter and sand stone, in which the sand stone is formed from quartz sand and regenerated sand, in which the curing agent is 1% -2%, resin is 2% -4%, promoter is 0.5-1.5% and sand stone is 95% -96.5%.
Wherein the resin is polypropylene and the curing agent is hexamethylenetetramine.
Preparing raw materials into liquid resin, selecting proper quartz sand, reclaimed sand and other raw sand according to the shape and size of a required casting, sieving, drying and the like, smearing the resin sand on the raw sand, forming a lamellar resin sand layer in a casting mould, curing the resin sand by using a curing agent to accelerate the curing of the resin, forming a hard shell of the resin sand in the casting mould, connecting the front part and the rear part of the sand mould, and casting and demoulding at the moment.
The resin sand is smeared on the raw sand by using manual coating or automatic spraying, and the used resin sand is subjected to treatments such as separation, cleaning, drying and the like to remove raw sand particles and can be recycled.
What is not described in detail in this specification is prior art known to those skilled in the art.
The invention and its embodiments have been described above without limitation. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (5)
1. A resin sand for sand casting is characterized in that: the resin sand comprises resin, curing agent, accelerator and sand stone, wherein the sand stone is composed of quartz sand and reclaimed sand, the curing agent accounts for 1% -2%, the resin accounts for 2% -4%, the accelerator accounts for 0.5-1.5%, and the sand stone accounts for 95% -96.5%.
2. A sand casting resin sand according to claim 1, characterized in that: the resin is polypropylene and the curing agent is hexamethylenetetramine.
3. A method for producing resin sand for sand casting according to claims 1-2, characterized in that: preparing raw materials into liquid resin, selecting proper quartz sand, reclaimed sand and other raw sand according to the shape and size of a required casting, sieving, drying and the like, smearing the resin sand on the raw sand, forming a lamellar resin sand layer in a casting mould, curing the resin sand by using a curing agent to accelerate the curing of the resin, forming a hard shell of the resin sand in the casting mould, connecting the front part and the rear part of the sand mould, and casting and demoulding at the moment.
4. A method for producing resin sand for sand casting according to claim 3, characterized by: the resin sand is coated on the raw sand by manual coating or automatic spraying.
5. A method for producing resin sand for sand casting according to claim 3, characterized by: the used resin sand is subjected to treatments such as separation, cleaning, drying and the like, raw sand particles are removed, and the resin sand can be recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310717672.3A CN116532612A (en) | 2023-06-16 | 2023-06-16 | Resin sand for sand casting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310717672.3A CN116532612A (en) | 2023-06-16 | 2023-06-16 | Resin sand for sand casting and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116532612A true CN116532612A (en) | 2023-08-04 |
Family
ID=87448989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310717672.3A Pending CN116532612A (en) | 2023-06-16 | 2023-06-16 | Resin sand for sand casting and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116532612A (en) |
-
2023
- 2023-06-16 CN CN202310717672.3A patent/CN116532612A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |