CN107716847A - A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve - Google Patents
A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve Download PDFInfo
- Publication number
- CN107716847A CN107716847A CN201710777482.5A CN201710777482A CN107716847A CN 107716847 A CN107716847 A CN 107716847A CN 201710777482 A CN201710777482 A CN 201710777482A CN 107716847 A CN107716847 A CN 107716847A
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- China
- Prior art keywords
- cylinder sleeve
- cast
- diesel engine
- metal mould
- cooled metal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve, including following weight than raw material：Refractory material 85%, suspending agent, bonding agent 6%, oxidant, sodium carbonate and carboxymethyl cellulose 1.45%, and using water as solvent, wherein, the refractory material was 150 mesh boracic slag powders, suspending agent is calcium-base bentonite, and oxidant is iron oxide, and bonding agent uses waterglass.Cylinder sleeve centrifugal casting coating in the present invention, using boracic slag powders as fire-resistant base material, calcium-base bentonite is suspending agent, and iron oxide is oxidant, greatly reduces weld point, and 2min is kept under the conditions of 1050% DEG C, that is, starts coating and liquefy completely, and sintering is not difficult；Gas forming amount is relatively low, and Cylinder Sleeve Castings surface pinholes defect can be made to shoal and tailed off, and reduces cylinder liner blank allowance.
Description
Technical field
The present invention relates to centrifugal casting technique field, specifically a kind of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve
Cast paint.
Background technology
Centrifugal casting be will liquid metals injection at a high speed in the casting mold of rotation, make molten metal do centrifugal motion full of casting mold and
Form the technology and method of casting.Because centrifugal motion makes liquid metals radially can be full of casting mold well and form casting
Free Surface；The endoporus of cylinder can be obtained without core；Contribute to the exclusion of gas and field trash in liquid metals；Influence gold
The crystallization process of category, so as to improve the mechanical performance of casting and physical property.
The engine performance that traditional handicraft is developed is had too many difficulties to cope with all the more, the various aspects of performance of its core --- cylinder sleeve
Index needs raising badly, if wear-resisting, corrosion-resistant, effective radiating, life-span length etc. are fallen over each other to grind as each side of world professional
The theme studied carefully, centrifugal cast cylinder sleeve technology are arisen at the historic moment.
The chill coating of state's inner cylinder liner centrifugal casting is based on traditional water base silica flour at present, in the cast condition iron
Coolant-temperature gage deficiency, is not easy to sinter coating, is easily adhered on cylinder liner blank, cause to produce a large amount of dust during roughing, and
Cylinder liner surface hole is set to gather, defect could be eliminated by only increasing allowance.
The content of the invention
It is an object of the invention to provide a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve, with solution
The problem of being proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve, including following weight than raw material：Fire proofed wood
Material 85%, suspending agent, bonding agent 6%, oxidant, sodium carbonate and carboxymethyl cellulose 1.45%, and using water as solvent, wherein, it is described
Refractory material was 150 mesh boracic slag powders, and suspending agent is calcium-base bentonite, and oxidant is iron oxide, and bonding agent uses water glass
Glass.
As the further scheme of the present invention：The modulus of water glass is 2.3.
As the further scheme of the present invention：The addition of the iron oxide is more than 1.5%.
As the further scheme of the present invention：The sodium carbonate addition determines according to the pH value of coating, but is no more than
0.3%。
As the further scheme of the present invention：The preparation technology of the coating is：Boracic slag powders and calcium-base bentonite are added
Water stirs 30-40min, stands 15min afterwards, adds oxidant, waterglass and sodium carboxymethylcellulose, stirs 30min, slowly
Sodium carbonate is added, and is sampled, detects pH value and density, stops adding sodium carbonate when pH=8-9, density=1.5-1.6g/cm3.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the cylinder sleeve centrifugal casting coating in the present invention, using boracic slag powders as fire-resistant base material, calcium-base bentonite is suspending agent, oxygen
Change iron is oxidant, greatly reduces weld point, and 2min is kept under the conditions of 1050% DEG C, that is, starts coating and liquefy completely, sintering
It is not difficult；
2nd, gas forming amount is relatively low, and Cylinder Sleeve Castings surface pinholes defect can be made to shoal and tailed off, and reduces cylinder liner blank allowance.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
In the embodiment of the present invention, a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve, including it is following
Weight than raw material：Refractory material 85%, suspending agent, bonding agent 6%, oxidant, sodium carbonate and carboxymethyl cellulose 1.45%, and
Using water as solvent, wherein, the refractory material was 150 mesh boracic slag powders, and suspending agent is calcium-base bentonite, and oxidant is oxygen
Change iron, bonding agent uses waterglass.
The modulus of water glass is 2.3.
The addition of the iron oxide is more than 1.5%, and it is to ensure shape between coating sinter layer and metal to add iron oxide
Low-intensity oxide-isolation layer into adequate thickness is voluntarily peeled off in favor of sinter layer, and under the composition design, iron oxide added
When few, sinter layer is difficult to the stripping that voluntarily bursts.
The sodium carbonate addition determines according to the pH value of coating, but no more than 0.3%, sodium carbonate can be to calcium-base bentonite
Activated, improve the suspension stability of coating, but the heated precipitation CO2 gases of sodium carbonate, add gas forming amount, thus needed tight
Lattice control addition.
The preparation technology of the coating is：Water is added to stir 30-40min boracic slag powders and calcium-base bentonite, it is rear to stand
15min, oxidant, waterglass and sodium carboxymethylcellulose are added, stir 30min, be slowly added to sodium carbonate, and sampled, examined
Survey pH value and density, stop adding sodium carbonate when pH=8-9, density=1.5-1.6g/cm3.
Cabinet-type electric furnace inner heating drying is put into after coating is filtered dry, powdery is made in crushing, is placed in measure sintering in tube furnace
Point, the weld point such as table one of the coating of heterogeneity design, it is seen that the coating using boracic slag powders as Main Refractory sinters
Point is 1050 DEG C or so, is substantially reduced compared to existing coating weld point temperature.
Sampling, it is 7.3-10.1ml/g to measure gas forming amount by gas-forming property tester, and the equal base of existing the amount of gas evolution from the coating
This is in more than 15ml/g.
Table one, heterogeneity design the weld point temperature data of coating
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of spirit or essential attributes from the present invention, the present invention can be realized in other specific forms.Therefore, no matter from which
From the point of view of a bit, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention will by appended right
Ask rather than described above limits, it is intended that all changes in the implication and scope of the equivalency of claim will be fallen
Include in the present invention.Any mark in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve, including following weight than raw material：Fire resisting
Material 85%, suspending agent, bonding agent 6%, oxidant, sodium carbonate and carboxymethyl cellulose 1.45%, and using water as solvent, wherein, institute
It was 150 mesh boracic slag powders to state refractory material, and suspending agent is calcium-base bentonite, and oxidant is iron oxide, and bonding agent uses water
Glass.
2. a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve according to claim 1, its feature
It is：The modulus of water glass is 2.3.
3. a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve according to claim 1, its feature
It is：The addition of the iron oxide is more than 1.5%.
4. a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve according to claim 1, its feature
It is：The sodium carbonate addition determines according to the pH value of coating, but is less than 0.3%.
5. a kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve according to claim 1, its feature
It is：The preparation technology of the coating is：Add water to stir 30-40min boracic slag powders and calcium-base bentonite, stand 15min afterwards,
Oxidant, waterglass and sodium carboxymethylcellulose are added, 30min is stirred, is slowly added to sodium carbonate, and is sampled, detects pH value
And density, stop when pH=8-9, density=1.5-1.6g/cm3 adding sodium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777482.5A CN107716847A (en) | 2017-09-01 | 2017-09-01 | A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777482.5A CN107716847A (en) | 2017-09-01 | 2017-09-01 | A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107716847A true CN107716847A (en) | 2018-02-23 |
Family
ID=61205737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710777482.5A Pending CN107716847A (en) | 2017-09-01 | 2017-09-01 | A kind of cast paint of use for diesel engine water-cooled metal mould centrifugal cast cylinder sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107716847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580797A (en) * | 2018-05-29 | 2018-09-28 | 济南圣泉集团股份有限公司 | A kind of centrifugal casting chill coating and preparation method thereof |
| CN110935841A (en) * | 2019-10-11 | 2020-03-31 | 三明学院 | High-heat-insulation ultrathin coating for centrifugal casting cylinder sleeve and production method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399036A (en) * | 1977-02-09 | 1978-08-30 | Kubota Ltd | Facings for centrifugal casting mold |
| CN101554643A (en) * | 2009-05-15 | 2009-10-14 | 扬州五亭桥缸套有限公司 | Centrifugal casting coating for cylinder liners and preparation method thereof |
| CN104014728A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Alcohol-based foundry coating of blast furnace slag and fabrication method thereof |
| CN105127364A (en) * | 2015-08-25 | 2015-12-09 | 苏州热工研究院有限公司 | Mold releasing coating for centrifugal casting and painting method of mold releasing coating |
| CN106082655A (en) * | 2016-06-28 | 2016-11-09 | 张雪峰 | A kind of method using Technology of EPC to prepare cinder microcrystalline glass composite pipe |
-
2017
- 2017-09-01 CN CN201710777482.5A patent/CN107716847A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399036A (en) * | 1977-02-09 | 1978-08-30 | Kubota Ltd | Facings for centrifugal casting mold |
| CN101554643A (en) * | 2009-05-15 | 2009-10-14 | 扬州五亭桥缸套有限公司 | Centrifugal casting coating for cylinder liners and preparation method thereof |
| CN104014728A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Alcohol-based foundry coating of blast furnace slag and fabrication method thereof |
| CN105127364A (en) * | 2015-08-25 | 2015-12-09 | 苏州热工研究院有限公司 | Mold releasing coating for centrifugal casting and painting method of mold releasing coating |
| CN106082655A (en) * | 2016-06-28 | 2016-11-09 | 张雪峰 | A kind of method using Technology of EPC to prepare cinder microcrystalline glass composite pipe |
Non-Patent Citations (1)
| Title |
|---|
| 蒋宗宇: "缸套离心铸造涂料的研制", 《铸造》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580797A (en) * | 2018-05-29 | 2018-09-28 | 济南圣泉集团股份有限公司 | A kind of centrifugal casting chill coating and preparation method thereof |
| CN110935841A (en) * | 2019-10-11 | 2020-03-31 | 三明学院 | High-heat-insulation ultrathin coating for centrifugal casting cylinder sleeve and production method thereof |
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Application publication date: 20180223 |
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