CN105750477A - Novel composite hardening agent for die casting - Google Patents
Novel composite hardening agent for die casting Download PDFInfo
- Publication number
- CN105750477A CN105750477A CN201510929666.XA CN201510929666A CN105750477A CN 105750477 A CN105750477 A CN 105750477A CN 201510929666 A CN201510929666 A CN 201510929666A CN 105750477 A CN105750477 A CN 105750477A
- Authority
- CN
- China
- Prior art keywords
- parts
- aluminum chloride
- chloride
- hardening agent
- novel composite
- 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.)
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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
- 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
- B22C1/10—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 influencing the hardening tendency of the mould material
Abstract
A novel composite hardening agent for die casting is characterized by being prepared from, by weight, 70-80 parts of magnesium chloride, 45-65 parts of ammonium chloride, 0.1-0.5 part of stearic acid, 0.2-0.8 part of paraffin, 15-18 parts of crystalized aluminum chloride and 0.5-0.8 part of fatty alcohol polyoxyethylene.A preparation method of the crystalized aluminum chloride includes: adding aluminum hydroxide and waste hydrochloric acid into a reaction kettle for reflux reaction for 0.5-1.5 hours, and filtering, evaporating, crystalizing, centrifuging and separating the reaction liquid to obtain the crystalized aluminum chloride, wherein the mole ratio of the aluminum hydroxide to the waste hydrochloric acid is 1:1.02-1:1:1.15.The novel composite hardening agent has the advantages that novel composite hardening agent is composited by various components and has composite functions; when the novel composite hardening agent is used for sodium silicate sand casting, cast yield is high, and good cast surface quality and good cast size precision are achieved.
Description
Technical field
The present invention relates to casting field, specifically a kind of novel die casting composite hardener.
Background technology
Model casting is also known as " lost-wax casting ", it is common that refer to make apperance at fusible material,
If shell made by apperance Surface coating dried layer refractory material, then apperance fusing is discharged shell, from
And obtain the casting mold without die joint, after high-temperature roasting, get final product the founding method of back-up sand cast.By
Manufacture in the widely used wax material of apperance, therefore often model casting is referred to as " lost-wax casting ".
In model casting, sodium silicate binder is general and slurry prepared by silica flour, spreads quartz sand,
Chemicosolidifying in ammonium chloride solution and crystallization magnesium chloride solution, the investment shell intensity that this technique prepares
The highest, surface roughness and the dimensional accuracy of foundry goods are poor.
Summary of the invention
For achieving the above object, the present invention provides following technical scheme: a kind of novel die casts
With composite hardener, formulated according to parts by weight by following raw material: magnesium chloride 70-80 part,
Ammonium chloride 45-65 part, stearic acid 0.1-0.5 part, paraffin 0.2-0.8 part, crystallization chlorination
Aluminum 15-18 part, aliphatic alcohol polyethenoxy 0.5-0.8 part；
Time prepared by crystal aluminum chloride, by aluminium hydroxide with waste hydrochloric acid with mol ratio as 1:1.02-1:
The ratio of 1:1.15 add in reactor after back flow reaction 0.5～1.5h by reacting liquid filtering,
Evaporate, crystallize, be centrifuged, separate, can be prepared by crystal aluminum chloride.
Preferably, formulated according to parts by weight by following raw material: 75 parts of magnesium chloride, chlorine
Change ammonium 55 parts, stearic acid 0.2 part, 0.5 part of paraffin, crystal aluminum chloride 16 parts, fatty alcohol
Polyoxyethylene 0.6 part.
Compared with prior art, the invention has the beneficial effects as follows:
1, formed by various ingredients is compound, for the sclerosing agent of complex function, for waterglass
During husky casting, casting yield is high, and surface quality of continuous castings and dimensional accuracy are good.
2, the present invention is with the waste hydrochloric acid of factory for wherein raw material, makes formwork curing agent and mainly becomes
Divide crystal aluminum chloride, substantially reduce chemical plant and cause ambient pressure, effectively because spent acid discharge
Protect environment.Utilize spent acid " to turn waste into wealth " for raw material simultaneously, greatly reduce crystallization
The production cost of aluminum chloride.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
The every other embodiment obtained under premise, broadly falls into the scope of protection of the invention.
Embodiment one
A kind of novel die casting composite hardener, is prepared according to parts by weight by following raw material
Form: 70 parts of magnesium chloride, ammonium chloride 45 parts, stearic acid 0.1 part, 0.2 part of paraffin, knot
Brilliant 15 parts of aluminum chloride, aliphatic alcohol polyethenoxy 0.5 part；
Time prepared by crystal aluminum chloride, by aluminium hydroxide with waste hydrochloric acid with mol ratio as 1:1.02-1:
The ratio of 1:1.15 add in reactor after back flow reaction 0.5～1.5h by reacting liquid filtering,
Evaporate, crystallize, be centrifuged, separate, can be prepared by crystal aluminum chloride.
Embodiment two
A kind of novel die casting composite hardener, is prepared according to parts by weight by following raw material
Form: 75 parts of magnesium chloride, ammonium chloride 55 parts, stearic acid 0.2 part, 0.5 part of paraffin, knot
Brilliant 16 parts of aluminum chloride, aliphatic alcohol polyethenoxy 0.6 part；
Time prepared by crystal aluminum chloride, by aluminium hydroxide with waste hydrochloric acid with mol ratio as 1:1.02-1:
The ratio of 1:1.15 add in reactor after back flow reaction 0.5～1.5h by reacting liquid filtering,
Evaporate, crystallize, be centrifuged, separate, can be prepared by crystal aluminum chloride.
Embodiment three
A kind of novel die casting composite hardener, is prepared according to parts by weight by following raw material
Form: 80 parts of magnesium chloride, ammonium chloride 65 parts, stearic acid 0.5 part, 0.8 part of paraffin,
Crystal aluminum chloride 18 parts, aliphatic alcohol polyethenoxy 0.8 part；
Time prepared by crystal aluminum chloride, by aluminium hydroxide with waste hydrochloric acid with mol ratio as 1:1.02-1:
The ratio of 1:1.15 add in reactor after back flow reaction 0.5～1.5h by reacting liquid filtering,
Evaporate, crystallize, be centrifuged, separate, can be prepared by crystal aluminum chloride.
Claims (2)
1. a novel die casting composite hardener, it is characterised in that by following raw material
Formulated according to parts by weight: magnesium chloride 70-80 part, ammonium chloride 45-65 part, tristearin
Acid 0.1-0.5 part, paraffin 0.2-0.8 part, crystal aluminum chloride 15-18 part, fatty alcohol polyoxy
Ethylene 0.5-0.8 part；
Time prepared by crystal aluminum chloride, by aluminium hydroxide with waste hydrochloric acid with mol ratio as 1:1.02-1:
The ratio of 1:1.15 add in reactor after back flow reaction 0.5～1.5h by reacting liquid filtering,
Evaporate, crystallize, be centrifuged, separate, can be prepared by crystal aluminum chloride.
A kind of novel die casting composite hardener the most according to claim 1, its
It is characterised by, formulated according to parts by weight by following raw material: 75 parts of magnesium chloride, chlorination
Ammonium 55 parts, stearic acid 0.2 part, 0.5 part of paraffin, crystal aluminum chloride 16 parts, poly alkyl alcohol
Oxygen ethylene 0.6 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929666.XA CN105750477A (en) | 2015-12-10 | 2015-12-10 | Novel composite hardening agent for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929666.XA CN105750477A (en) | 2015-12-10 | 2015-12-10 | Novel composite hardening agent for die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105750477A true CN105750477A (en) | 2016-07-13 |
Family
ID=56342189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929666.XA Pending CN105750477A (en) | 2015-12-10 | 2015-12-10 | Novel composite hardening agent for die casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN105750477A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931515A (en) * | 2017-12-18 | 2018-04-20 | 定远县宝隆机械制造有限公司 | A kind of investment casting formwork composite hardening agent prescription |
| CN108080560A (en) * | 2017-12-18 | 2018-05-29 | 定远县宝隆机械制造有限公司 | A kind of investment casting shell hardens agent prescription |
| CN108145090A (en) * | 2017-12-18 | 2018-06-12 | 定远县宝隆机械制造有限公司 | A kind of investment casting shell composite hardening agent prescription |
| CN108145091A (en) * | 2017-12-18 | 2018-06-12 | 定远县宝隆机械制造有限公司 | A kind of case hardening agent prescription of model casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819374B2 (en) * | 1977-02-27 | 1983-04-18 | 川崎重工業株式会社 | Odorless self-hardening mold |
| CN1895813A (en) * | 2005-07-14 | 2007-01-17 | 李士良 | Lost-wax composite hardener |
| CN102133614A (en) * | 2010-01-25 | 2011-07-27 | 襄樊市科民化工科技有限公司 | Formwork curing agent and production method thereof |
| 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 |
| CN103567371A (en) * | 2013-11-20 | 2014-02-12 | 江苏江旭铸造集团有限公司 | Investment casting composite hardening agent |
| CN104525847A (en) * | 2014-12-22 | 2015-04-22 | 南京优耐特精密机械制造有限公司 | Shell hardening agent |
-
2015
- 2015-12-10 CN CN201510929666.XA patent/CN105750477A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819374B2 (en) * | 1977-02-27 | 1983-04-18 | 川崎重工業株式会社 | Odorless self-hardening mold |
| CN1895813A (en) * | 2005-07-14 | 2007-01-17 | 李士良 | Lost-wax composite hardener |
| 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 |
| CN102133614A (en) * | 2010-01-25 | 2011-07-27 | 襄樊市科民化工科技有限公司 | Formwork curing agent and production method thereof |
| CN103567371A (en) * | 2013-11-20 | 2014-02-12 | 江苏江旭铸造集团有限公司 | Investment casting composite hardening agent |
| CN104525847A (en) * | 2014-12-22 | 2015-04-22 | 南京优耐特精密机械制造有限公司 | Shell hardening agent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931515A (en) * | 2017-12-18 | 2018-04-20 | 定远县宝隆机械制造有限公司 | A kind of investment casting formwork composite hardening agent prescription |
| CN108080560A (en) * | 2017-12-18 | 2018-05-29 | 定远县宝隆机械制造有限公司 | A kind of investment casting shell hardens agent prescription |
| CN108145090A (en) * | 2017-12-18 | 2018-06-12 | 定远县宝隆机械制造有限公司 | A kind of investment casting shell composite hardening agent prescription |
| CN108145091A (en) * | 2017-12-18 | 2018-06-12 | 定远县宝隆机械制造有限公司 | A kind of case hardening agent prescription of model casting |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
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| RJ01 | Rejection of invention patent application after publication |