CN107774885A - The preparation method of anti-sintering precoated sand - Google Patents
The preparation method of anti-sintering precoated sand Download PDFInfo
- Publication number
- CN107774885A CN107774885A CN201610727634.6A CN201610727634A CN107774885A CN 107774885 A CN107774885 A CN 107774885A CN 201610727634 A CN201610727634 A CN 201610727634A CN 107774885 A CN107774885 A CN 107774885A
- Authority
- CN
- China
- Prior art keywords
- precoated sand
- sand
- preparation
- sintering
- casting
- 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
- 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
- B22C1/12—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 for manufacturing permanent moulds or cores
-
- 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
- B22C1/2233—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 otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Mold Materials And Core Materials (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of preparation method of anti-sintering precoated sand, its intensity is not interfered with by the anti-sintering precoated sand of coupling agent, drinks and burns the technical indicators such as decrement and gas forming amount；Add precoated sand and meet ironcasting to the universality of steel-casting, improve the yield rate of casting, save the cost of foundry enterprise Modeling Material.
Description
Technical field
The invention belongs to casting technology field, and in particular to a kind of preparation method of anti-sintering precoated sand.
Background technology
In the prior art, if the pouring temperature of casting is high, easily there is the surface matter for sintering and having a strong impact on casting in casting
Amount, sinter the cleaning difficulty at position or even cause product rejection, cause the fraction defective of cast product to remain high, increase casting life
The cost of production.
The content of the invention
In order to overcome above mentioned problem existing for prior art, it is an object of the present invention to provide a kind of anti-sintering to cover
The preparation method of film sand, add precoated sand and meet that ironcasting to the universality of steel-casting, improves the yield rate of casting, saved
The cost of foundry enterprise Modeling Material.
The preparation method of anti-sintering precoated sand provided by the invention, comprises the following steps：
1) roughing sand heats：Roughing sand bucket elevator is sent into heating in batch heater and is heated to 150 ± 10 DEG C；
2) mulling overlay film：Roughing sand after heating is sent into puddle mixer, sequentially adds phenolic resin, curing agent, coupling agent, anti-burning
Agent, lubricant are tied, is shaked out after being mixed uniformly；
3) screening cooling：Impurity particle that may be present in precoated sand is subjected to screening removal, cooled by cooling bed precoated sand
To less than 70 DEG C；
4) packaging and storage：Inner bag is moistureproof plastic bag sealing, and outer bag is that woven bag is packed to precoated sand.
The preparation method of anti-sintering precoated sand provided by the invention, its advantage are：Add precoated sand and meet casting
Ironware improves the yield rate of casting to the universality of steel-casting, saves the cost of foundry enterprise Modeling Material.
Embodiment
With reference to embodiment, to the preparation method of anti-sintering precoated sand provided by the invention, it is described in detail.
Embodiment
The preparation method of the anti-sintering precoated sand of the present embodiment, comprises the following steps：
1) roughing sand heats：Roughing sand bucket elevator is sent into heating in batch heater and is heated to 160 DEG C；
2) mulling overlay film：Roughing sand after heating is sent into puddle mixer, sequentially adds phenolic resin, curing agent, coupling agent, anti-burning
Agent, lubricant are tied, is shaked out after being mixed uniformly；
3) screening cooling：Impurity particle that may be present in precoated sand is subjected to screening removal, cooled by cooling bed precoated sand
To 60 DEG C；
4) packaging and storage：Inner bag is moistureproof plastic bag sealing, and outer bag is that woven bag is packed to precoated sand.
Claims (1)
- A kind of 1. preparation method of anti-sintering precoated sand, it is characterised in that：Comprise the following steps：1) roughing sand heats：Roughing sand bucket elevator is sent into heating in batch heater and is heated to 150 ± 10 DEG C；2) mulling overlay film：Roughing sand after heating is sent into puddle mixer, sequentially adds phenolic resin, curing agent, coupling agent, anti-burning Agent, lubricant are tied, is shaked out after being mixed uniformly；3) screening cooling：Impurity particle that may be present in precoated sand is subjected to screening removal, cooled by cooling bed precoated sand To less than 70 DEG C；4) packaging and storage：Inner bag is moistureproof plastic bag sealing, and outer bag is that woven bag is packed to precoated sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727634.6A CN107774885A (en) | 2016-08-26 | 2016-08-26 | The preparation method of anti-sintering precoated sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727634.6A CN107774885A (en) | 2016-08-26 | 2016-08-26 | The preparation method of anti-sintering precoated sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107774885A true CN107774885A (en) | 2018-03-09 |
Family
ID=61438907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610727634.6A Pending CN107774885A (en) | 2016-08-26 | 2016-08-26 | The preparation method of anti-sintering precoated sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107774885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309451A (en) * | 2021-12-29 | 2022-04-12 | 天阳新材料科技有限公司 | Precoated sand for hydraulic parts and preparation method thereof |
-
2016
- 2016-08-26 CN CN201610727634.6A patent/CN107774885A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309451A (en) * | 2021-12-29 | 2022-04-12 | 天阳新材料科技有限公司 | Precoated sand for hydraulic parts and preparation method thereof |
| CN114309451B (en) * | 2021-12-29 | 2024-02-06 | 天阳新材料科技有限公司 | Precoated sand for hydraulic part and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |
|
| WD01 | Invention patent application deemed withdrawn after publication |