CN105626294A - Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof - Google Patents
Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof Download PDFInfo
- Publication number
- CN105626294A CN105626294A CN201610150466.9A CN201610150466A CN105626294A CN 105626294 A CN105626294 A CN 105626294A CN 201610150466 A CN201610150466 A CN 201610150466A CN 105626294 A CN105626294 A CN 105626294A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder sleeve
- cylinder body
- cast iron
- gasoline engine
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
Abstract
The invention relates to the technical field of aluminum cylinder die casting, in particular to a small four-stroke gasoline engine cast iron cylinder liner cylinder block and a die casting technology thereof. The cylinder block comprises a cylinder body, a cylinder liner is sleeved with the cylinder body, and the outer side wall of the cylinder liner is provided with a spiral protrusion or a plurality of annular protrusions at intervals; the inner cavity wall of the cylinder body is provided with grooves matched with the protrusions, the cylinder body and the cylinder liner are attached to each other, and no gap exists between the cylinder body and the cylinder liner. The cylinder block has the advantages that through processing and design of the structures of the cylinder body and the cylinder liner, heat conductivity between the cylinder body and the cylinder liner is effectively enhanced, and the performance that the cylinder liner dissipates heat to the cylinder body is improved. Meanwhile, due to the structure, problems existing in various manufacturing technologies are solved.
Description
Technical field
The present invention relates to the technical field of aluminium matter cylinder body die casting, especially relate to a kind of mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body and die casting technique thereof.
Background technology
In existing market, the four-stroke gasoline engine majority of below 50cc discharge capacity adopts chromium plating cylinder body, but yield rate is low; And the producer adopting cast iron cylinder sleeve when causing petrol motor to work because technique is not up to standard temperature too high. Existing chromium plating cylinder body is because coating control is poor, especially cylinder inner wall top coating is imperfect, adding little four, to rush piston of gasoline engine first Piston ring design position higher, rubs imperfect cylinder wall so easily causing first piston ring to be cut to pieces when petrol motor works and causes drawing cylinder; Adopt cast iron cylinder sleeve can solve the problem points of chromium plating cylinder body, but produce again new problem: namely cast iron cylinder sleeve is that the form as inserts adopts the mode of aluminium die casting to cast out, space or interlayer is there is between cast iron cylinder sleeve and aluminium part body, so also affecting the heat-sinking capability of cast iron cylinder sleeve cylinder body so can exist.
Summary of the invention
For the deficiency that above-mentioned prior art exists, it is an object of the invention to provide the mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body that a kind of cylinder sleeve ensures to be combined completely with aluminium part body when being cast into finished product.
For realizing above-mentioned object, the present invention provides following technical scheme:
A kind of mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body, comprises cylinder body, is arranged with cylinder sleeve in cylinder body, and the outer side wall of cylinder sleeve is provided with the projection of spiral or the projection of spaced some annulars; The internal chamber wall of cylinder body is provided with the groove mated mutually with projection, is adjacent to and arranges and there is not space between cylinder body and cylinder sleeve.
The present invention is set to further: described cylinder body is made of aluminum.
The present invention is set to further: described cylinder sleeve is that cast iron is made.
The present invention is set to further: do not arrange interlayer between described cylinder body and cylinder sleeve.
The technical process of the die casting technique of the mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body in above-mentioned is:
1. the cylinder sleeve manufactured is carried out Shot Blasting, to remove the zone of oxidation on cylinder sleeve surface;
2. the cylinder sleeve after Shot Blasting is carried out heat treated, it is heated to temperature and is 500-600 DEG C;
3. the cylinder sleeve that temperature is 500-600 DEG C is loaded and carry out aluminium die casting in die casting to complete cylinder sleeve and cylinder body zoarium.
The present invention is set to further: the cylinder sleeve after described throwing ball need to use within 1 day, and midway keeps dry.
The present invention is set to further: the cylinder sleeve after described throwing ball need to carry out heat treated in 4 hours, and midway keeps dry.
The present invention is set to further: the cylinder sleeve after described heating need to load within 10 minutes and carries out aluminium die casting in mould.
By adopting technique scheme, the technique effect that the present invention reaches is: by the process of the structure to cylinder body and cylinder sleeve and design, effectively enhance the heat conductivility between cylinder body and cylinder sleeve, also make the performance boost that cylinder sleeve dispels the heat to cylinder body, solve the difficulty of the multiple manufacturing process existence that said structure exists simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the structural principle schematic diagram of the present invention.
Embodiment
With reference to Fig. 1, for a kind of mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body disclosed by the invention, comprise cylinder body 10, cylinder sleeve 11 it is arranged with, for cast iron cylinder sleeve, generally in cylinder body 10, cylinder sleeve 11 will before die casting will processing and manufacturing out, individual deposit half-finished process time waiting in press casting procedure certainly needing, but within this time period, oxidizing reaction will occur cast iron in atmosphere. If carrying out aluminium die casting with zone of oxidation, and between aluminium matter, just create one layer of oxide skin, so causing cast iron cylinder sleeve cylinder body heat-sinking capability seriously to decline; The outer side wall of cylinder sleeve 11 is provided with the projection 12 of spiral or the projection 12 of spaced some annulars; The groove that the internal chamber wall of cylinder body 10 is provided with protruding 12 phases are mated, is adjacent between cylinder body 10 and cylinder sleeve 11 and arranges and there is not space. Preferred cylinder body is made of aluminum. Make it is also preferred that cylinder sleeve is cast iron. Usually before mould carries out normal die casting, all to be carried out several time first molding tools, it is intended that in order to allow the rise in temperature of cavity body of mould thus allow aluminium liquid be unlikely to just to enter cavity and die-cast product quality affected with regard to cooled and solidified. So when cast iron cylinder sleeve carries out molding put into cavity body of mould with state of nature after, being easy to, when aluminium liquid has just touched cast iron cylinder sleeve, Local cooling occurs and affect overall fusion, finally also cause cast iron cylinder sleeve cylinder body heat-sinking capability to decline. In order to promote heat dispersion, it is preferred to do not arrange interlayer between cylinder body 10 and cylinder sleeve 11.
The technical process of the die casting technique of the mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body in above-mentioned is:
1. the cylinder sleeve manufactured is carried out Shot Blasting, to remove the zone of oxidation on cylinder sleeve surface;
2. the cylinder sleeve after Shot Blasting is carried out heat treated, it is heated to temperature and is 500-600 DEG C;
3. the cylinder sleeve that temperature is 500-600 DEG C is loaded and carry out aluminium die casting in die casting to complete cylinder sleeve and cylinder body zoarium.
Wherein, throwing the cylinder sleeve after ball need to use within 1 day, and midway keeps dry. Throw the cylinder sleeve after ball and need to carry out heat treated in 4 hours, and midway keeps dry. Cylinder sleeve after heating need to load within 10 minutes and carries out aluminium die casting in mould.
Above-described embodiment is only the better embodiment of the present invention, not limits the scope of the invention according to this, therefore: the equivalence change that all structures according to the present invention, shape, principle are done, all should be covered by within protection scope of the present invention.
Claims (8)
1. a mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body, comprises cylinder body, it is characterised in that: being arranged with cylinder sleeve in cylinder body, the outer side wall of cylinder sleeve is provided with the projection of spiral or the projection of spaced some annulars; The internal chamber wall of cylinder body is provided with the groove mated mutually with projection, is adjacent to and arranges and there is not space between cylinder body and cylinder sleeve.
2. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 1, it is characterised in that: described cylinder body is made of aluminum.
3. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 1, it is characterised in that: described cylinder sleeve is that cast iron is made.
4. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 1, it is characterised in that: interlayer is not set between described cylinder body and cylinder sleeve.
5. the die casting technique of mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to the arbitrary item of Claims 1-4, it is characterised in that: technical process is:
1. the cylinder sleeve manufactured is carried out Shot Blasting, to remove the zone of oxidation on cylinder sleeve surface;
2. the cylinder sleeve after Shot Blasting is carried out heat treated, it is heated to temperature and is 500-600 DEG C;
3. the cylinder sleeve that temperature is 500-600 DEG C is loaded and carry out aluminium die casting in die casting to complete cylinder sleeve and cylinder body zoarium.
6. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 5, it is characterised in that: the cylinder sleeve after described throwing ball need to use within 1 day, and midway keeps dry.
7. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 5, it is characterised in that: the cylinder sleeve after described throwing ball need to carry out heat treated in 4 hours, and midway keeps dry.
8. mini four-stroke gasoline engine cast iron cylinder sleeve cylinder body according to claim 5, it is characterised in that: the cylinder sleeve after described heating need to load within 10 minutes and carries out aluminium die casting in mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150466.9A CN105626294A (en) | 2016-03-16 | 2016-03-16 | Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150466.9A CN105626294A (en) | 2016-03-16 | 2016-03-16 | Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626294A true CN105626294A (en) | 2016-06-01 |
Family
ID=56041552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610150466.9A Pending CN105626294A (en) | 2016-03-16 | 2016-03-16 | Small four-stroke gasoline engine cast iron cylinder liner cylinder block and die casting technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072809A (en) * | 2017-11-17 | 2018-12-21 | 帝伯爱尔株式会社 | Cast iron rounding cartridge unit and complex structure body |
Citations (7)
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|---|---|---|---|---|
| CN201148915Y (en) * | 2008-01-26 | 2008-11-12 | 徐洪涛 | Motorcycle water-cooled cylinder body |
| CN101526044A (en) * | 2009-01-21 | 2009-09-09 | 贵州金泰科技发展有限公司 | Dual-alloy compound cylinder body and manufacture method thereof |
| CN201635853U (en) * | 2009-12-30 | 2010-11-17 | 绵阳新晨动力机械有限公司 | Vehicle engine cylinder body with cylinder sleeve location structure |
| CN202012402U (en) * | 2011-03-31 | 2011-10-19 | 常州常瑞天力动力机械有限公司 | Cast-in cast iron cylinder sleeve of internal combustion engines |
| DE102010055160A1 (en) * | 2010-12-18 | 2012-06-21 | Mahle International Gmbh | Producing cylinder crankcase comprising integrally molded in cylinder liners and cooling water space, comprises providing cylinder liners, introducing cylinder liners and cylinder liners, casting and removing material of cylinder crankcase |
| EP1902208B1 (en) * | 2005-07-08 | 2012-10-24 | Toyota Jidosha Kabushiki Kaisha | Cylinder liner and engine |
| CN205532910U (en) * | 2016-03-16 | 2016-08-31 | 浙江中马园林机器股份有限公司 | Small -size four -stroke -cycle gasoline engine cast iron cylinder liner cylinder block |
-
2016
- 2016-03-16 CN CN201610150466.9A patent/CN105626294A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1902208B1 (en) * | 2005-07-08 | 2012-10-24 | Toyota Jidosha Kabushiki Kaisha | Cylinder liner and engine |
| CN201148915Y (en) * | 2008-01-26 | 2008-11-12 | 徐洪涛 | Motorcycle water-cooled cylinder body |
| CN101526044A (en) * | 2009-01-21 | 2009-09-09 | 贵州金泰科技发展有限公司 | Dual-alloy compound cylinder body and manufacture method thereof |
| CN201635853U (en) * | 2009-12-30 | 2010-11-17 | 绵阳新晨动力机械有限公司 | Vehicle engine cylinder body with cylinder sleeve location structure |
| DE102010055160A1 (en) * | 2010-12-18 | 2012-06-21 | Mahle International Gmbh | Producing cylinder crankcase comprising integrally molded in cylinder liners and cooling water space, comprises providing cylinder liners, introducing cylinder liners and cylinder liners, casting and removing material of cylinder crankcase |
| CN202012402U (en) * | 2011-03-31 | 2011-10-19 | 常州常瑞天力动力机械有限公司 | Cast-in cast iron cylinder sleeve of internal combustion engines |
| CN205532910U (en) * | 2016-03-16 | 2016-08-31 | 浙江中马园林机器股份有限公司 | Small -size four -stroke -cycle gasoline engine cast iron cylinder liner cylinder block |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072809A (en) * | 2017-11-17 | 2018-12-21 | 帝伯爱尔株式会社 | Cast iron rounding cartridge unit and complex structure body |
| CN109072809B (en) * | 2017-11-17 | 2019-11-08 | 帝伯爱尔株式会社 | Cast iron rounding cartridge unit and complex structure body |
| US10596624B2 (en) | 2017-11-17 | 2020-03-24 | Tpr Co., Ltd. | Cast-iron cylindrical member and composite structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |