CN104014763B - Aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method - Google Patents
Aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method Download PDFInfo
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- CN104014763B CN104014763B CN201410256217.9A CN201410256217A CN104014763B CN 104014763 B CN104014763 B CN 104014763B CN 201410256217 A CN201410256217 A CN 201410256217A CN 104014763 B CN104014763 B CN 104014763B
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- Prior art keywords
- borate whisker
- aluminium borate
- prefabricated component
- blank
- aluminium
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- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims abstract description 23
- 150000003839 salts Chemical group 0.000 claims abstract description 21
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 15
- 238000011065 in-situ storage Methods 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005242 forging Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 7
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000004327 boric acid Substances 0.000 claims description 7
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 6
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 13
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention discloses a kind of aluminium borate whisker and strengthen combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, 1) manufacture aluminium borate whisker prefabricated component blank with the method for growth in situ, this blank shape, close to net shape, only leaves 1 3mm allowance；2) aluminium borate whisker prefabricated component blank processed finished products；3) ceramic salt core is made；4) aluminium borate whisker prefabricated component is preheated；5) after being preheated by solvable core, take out aluminium borate whisker prefabricated component, solvable core is loaded aluminium borate whisker prefabricated component, puts into rapidly in casting mould；6) the wear resistant cast iron insert after aluminising being processed is put into casting mould and fixes；7) in casting mould, aluminium alloy solution, extrusion forming are poured into；8) it is machined to finished product after piston blank heat treatment.Through the aluminium borate whisker prefabricated component internal whisker arrangement isotropism that growth in situ is formed, the composite of formation is also isotropism, it is to avoid the hoop fatigue crack that alumina fibre composite is caused because of anisotropy in the past.
Description
Technical field
The present invention relates to a kind of use aluminium borate whisker to strengthen combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, especially one
Plant and include the use manufacture of aluminium borate whisker prefabricated component, aluminium borate whisker composite material piston manufacture method simultaneously.
Background technology
At present, truck, engineering machinery, railway locomotive and electromotor peculiar to vessel are all being sent out to high-power, high load capacity direction
Exhibition, reinforcing degree improves constantly, and emission request is more and more stricter.It is multiple that head at the piston of electromotor increases aluminium oxide ceramics
Condensation material can improve the thermal fatigue property of piston aditus laryngis, but along with the further increase of reinforcing degree, owing to alumina fibre is pre-
, easily there is layering in product, and ceramic composite has anisotropy, occurs the situation of annular cracking in therefore testing and using
Repeatedly occur, and use aluminium borate whisker to strengthen composite material piston, owing to composite is isotropism, therefore solve
The bottleneck of high power density engine development.Inner cooling path structure can effectively reduce the temperature of piston crown simultaneously, and raising is started
The performance of machine.Using liquid forging casting technique that piston tissue can be made finer and close, mechanical performance is higher.Therefore, by three
Combine, the serviceability of piston will be greatly improved.Inner cooling path is that ceramic salt core is cast in piston blank head, casting
Salt dissolved the going out of core is formed by Cheng Houzai.But, the restriction of the casting technique that is squeezed mode, cannot by mould itself
Realize the location of solvable core.Produce with aluminum borate crystal whisker whisker composite material inner cooling path structure ring-mounted piston in liquid forging mode
Technique never realize.Can only by with liquid forging forging type casting with aluminium borate whisker composite but without
There is a piston blank of inner cooling path, or use conventional cast mode to cast only piston blank with inner cooling path.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of aluminium borate whisker strengthens combustion chamber throat edge
Aluminum piston with internally cooled ring manufacture method.
For achieving the above object, the present invention uses following technical proposals:
A kind of aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, manufactures boron with the method for growth in situ
Acid al whisker prefabricated component blank, carries out liquid forging process casting piston blank and is machined as piston finished product after processing,
Concretely comprise the following steps:
1). manufacturing aluminium borate whisker prefabricated component blank with the method for growth in situ, this blank shape, close to net shape, only leaves
1-3mm allowance；
The growth in situ method of aluminium borate whisker prefabricated component blank is:
A, by after aluminium hydroxide, boric acid and nickel oxide respectively grinding screen, add the most of moisture that heat extraction is contained therein；
B, by aluminium hydroxide be 93～95 weight portions, boric acid be that 3～4.5 weight portions, the proportioning of nickel oxide 0.5～2.5 weight portion are joined
Material, then carry out mix homogeneously；
C, mixed raw material is put into compacting tool set, extruded；
D, it is sintered blank forming isotropic aluminium borate whisker；
E, blank after sintering is machined, reach drawing requirement size, make aluminium borate whisker prefabricated component blank；
2). by step 1) the aluminium borate whisker prefabricated component blank processed finished products prepared；
3). make ceramic salt core；
4). aluminium borate whisker prefabricated component is preheated；
5). after being preheated by ceramic salt core, take out aluminium borate whisker prefabricated component, ceramic salt core is loaded aluminium borate whisker prefabricated component,
Put into rapidly in casting mould；
6). the wear resistant cast iron insert after aluminising being processed is put into casting mould and fixes；
7). in casting mould, pour aluminium alloy solution, extrusion forming into；
8). it is machined to finished product after piston blank heat treatment, finished product is provided with inner cooling path.
Described step 1) after the oxide of aluminium hydroxide, boric acid and nickel is crushed to 80～200 mesh sieves respectively in a, it is heated to
85～99 DEG C to remove most of moisture contained therein.
Described step 1) pressure requirements 1～15MPa extruded in c, the allowance of blank is 1-3mm.
Described step 1) sintering temperature 1000～1500 DEG C in d, time 4～12 hours, formed during sintering each to
The aluminium borate whisker of property.
Step 7 in the present invention) in extrusion forming technique and the extrusion forming technique phase in existing liquid forging casting technique
With.Step 6) in wear resistant cast iron insert aluminising process identical with existing process technique.Step 3) in ceramic salt core
Manufacture, step 4), 5) in pre-heating technique identical with existing technique.All repeat no more.
The invention has the beneficial effects as follows, through the aluminium borate whisker prefabricated component internal whisker arrangement isotropism that growth in situ is formed,
The composite formed also is isotropism, it is to avoid the hoop that alumina fibre composite is caused because of anisotropy in the past is tired
Labor crackle, aluminium borate whisker prefabricated component volume fraction is high, volume fraction up to 20-50%, can preferably by with wear resistant cast iron
Insert cooperation realizes ceramic salt core fixing in casting mould, accurate positioning, thus preferably ensures the morpheme of inner cooling path
Tolerance；After the piston blank made is processed into piston, there is the feature of the piston dense structure that liquid forging casting technique is made,
Mechanical performance is high, and aluminum borate crystal whisker whisker composite material can increase substantially the thermal fatigue property of piston aditus laryngis, fatigue strength contrast oxygen
Change aluminum fiber composite and improve more than 30%, add the existence of inner cooling path, reduce the temperature of head combustor and annular groove
Degree, substantially increases the bearing capacity of piston, simultaneously, it may have good casting manufacturability.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is piston blank structural representation；
Fig. 3 (1a), Fig. 3 (1b) are wear resistant cast iron insert structural front view and top view；
Fig. 4 is ceramic salt cored structure schematic diagram；
Fig. 5 is aluminium borate whisker preform structure schematic diagram；
Fig. 6 is die assembly wear resistant cast iron insert, ceramic salt core and aluminium borate whisker prefabricated component structure schematic diagram；
Wherein 1. combustor, 2. head, 3. aluminium borate whisker prefabricated component, 4. wear resistant cast iron insert, 5. inner cooling path, 6.
Ring shore, 7. pin-and-hole, 8. skirt section, 9. ceramic salt core, 10. punch, 11. seam circles, 12. dies, 13. bed dies.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
A kind of aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, manufactures boron with the method for growth in situ
Acid al whisker prefabricated component blank, carries out liquid forging process casting piston blank and is machined as piston finished product after processing,
Concretely comprise the following steps:
1). manufacturing aluminium borate whisker prefabricated component blank with the method for growth in situ, this blank shape is substantially close to net shape, only
Leave 1-3mm allowance；Aluminium borate whisker prefabricated component volume fraction is high, and volume fraction is up to 20-50%, prefabricated component intensity
More than alumina fibre prefabricated component, preferably ceramic salt core can be realized in casting mould by coordinating with wear resistant cast iron insert
Fixing, accurate positioning, thus preferably ensure the form and position tolerance of inner cooling path；
The growth in situ method of aluminium borate whisker prefabricated component blank is:
A, aluminium hydroxide, boric acid and nickel oxide are crushed to respectively 80～200 mesh sieves after, be heated to 85～99 DEG C with remove wherein
Contained most of moisture；
B, by aluminium hydroxide be 93～95 weight portions, boric acid be that 3～4.5 weight portions, the proportioning of nickel oxide 0.5～2.5 weight portion are joined
Material, then carry out mix homogeneously；
C, mixed raw material is put into compacting tool set, extruded, pressure requirements 1～15MPa, the allowance of blank
For 1-3mm；
D, blank is sintered, sintering temperature 1000～1500 DEG C, time 4～12 hours, is formed each during sintering
To the aluminium borate whisker of the same sex；
E, blank after sintering is machined, reach drawing requirement size；
2) aluminium borate whisker prefabricated component blank processed finished products；
3). make ceramic salt core；
4). aluminium borate whisker prefabricated component is preheated；
5). after being preheated by ceramic salt core, take out aluminium borate whisker prefabricated component, ceramic salt core is loaded aluminium borate whisker prefabricated component,
Put into rapidly in casting mould；
6). the wear resistant cast iron insert after aluminising being processed is put into casting mould and fixes；
7). in casting mould, pour aluminium alloy solution, extrusion forming into；
8). it is machined to finished product after piston blank heat treatment, finished product is provided with inner cooling path.
Step 7 in the present invention) in extrusion forming technique and the extrusion forming technique phase in existing liquid forging casting technique
With.Step 6) in wear resistant cast iron insert aluminising process identical with existing process technique.Step 3) in ceramic salt core
Manufacture, step 4), 5) in pre-heating technique identical with existing technique.All repeat no more.
The aluminium borate whisker utilizing the method for the present embodiment to prepare strengthens combustion chamber throat aluminium recovery, as it is shown in figure 1, include head
Portion 2, ring shore 6, skirt section 8, there is a pin-and-hole 7 in skirt section, head combuster 1, ring bank the first annular groove by wear resistant cast iron insert
4 make, as in figure 2 it is shown, ceramic salt core 9 is after boring is water-soluble, form inner cooling path 5.As shown in Figure 6, non-cast aluminum
Liquid, is only signal wear resistant cast iron insert 4, and the ceramic salt core 9 in piston blank connects hook and Alborex M 12 by wear resistant cast iron insert
Whisker prefabricated component 3 links together.Aluminium borate whisker prefabricated component 3 serves good fixation.
As shown in Figure 6, non-cast aluminum liquid, it is only signal casting mould by punch 10, seam circle 11, die 12, bed die
13 compositions.
Use the piston blank that the method for the present invention is made, after conventional T6 heat treatment, further by machining etc.,
Make piston as shown in Figure 1.
The present invention only describes and illustrates its representational form, in addition, without departing from the spirit and scope of the present invention
In the case of, the present invention can be made multiple changing and modifications.Such as the method for the available present invention, make both have interior cold
Passage and wear resistant cast iron insert, combustor local ceramic composite, have again the high-performance piston that skirt section steel disc strengthens.
Claims (3)
1. an aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, it is characterized in that, manufacture aluminium borate whisker prefabricated component blank with the method for growth in situ, carry out liquid forging process casting piston blank after processing and be machined as piston finished product, concretely comprising the following steps:
1) manufacturing aluminium borate whisker prefabricated component blank with the method for growth in situ, this blank shape, close to net shape, only leaves 1-3mm allowance；
The growth in situ method of aluminium borate whisker prefabricated component blank is:
A, aluminium hydroxide, boric acid and nickel oxide pulverized respectively be sieved to 80 ~ 200 mesh sieves after, be heated to 85 ~ 99 DEG C to remove most of moisture contained therein；
B, it is that 93 ~ 95 weight portions, boric acid are 3 ~ 4.5 weight portions, the proportion ingredient of nickel oxide 0.5 ~ 2.5 weight portion, then carry out mix homogeneously by aluminium hydroxide；
C, mixed raw material is put into compacting tool set, extruded；
D, it is sintered blank forming isotropic aluminium borate whisker；
E, blank after sintering is machined, reach drawing requirement size, make aluminium borate whisker prefabricated component blank；
2) the aluminium borate whisker prefabricated component blank processed finished products prepared by step 1)；
3) ceramic salt core is made；
4) aluminium borate whisker prefabricated component is preheated；
5) after being preheated by ceramic salt core, take out aluminium borate whisker prefabricated component, ceramic salt core is loaded aluminium borate whisker prefabricated component, puts into rapidly in casting mould；
6) the wear resistant cast iron insert after aluminising being processed is put into casting mould and fixes；
7) in casting mould, aluminium alloy solution, extrusion forming are poured into；
8) it is machined to finished product after piston blank heat treatment, finished product is provided with inner cooling path.
2. aluminium borate whisker as claimed in claim 1 strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, it is characterized in that, pressure requirements 1 ~ 15MPa extruded in described step 1) c, and the allowance of blank is 1-3mm.
3. aluminium borate whisker as claimed in claim 1 strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method, it is characterized in that, sintering temperature 1000 ~ 1500 DEG C in described step 1) d, 4 ~ 12 hours time, form isotropic aluminium borate whisker during sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256217.9A CN104014763B (en) | 2014-06-10 | 2014-06-10 | Aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256217.9A CN104014763B (en) | 2014-06-10 | 2014-06-10 | Aluminium borate whisker strengthens combustion chamber throat edge aluminum piston with internally cooled ring manufacture method |
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| CN104014763A CN104014763A (en) | 2014-09-03 |
| CN104014763B true CN104014763B (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648104A (en) * | 2020-12-07 | 2021-04-13 | 中国兵器科学研究院宁波分院 | Whisker reinforced aluminum alloy piston and preparation method thereof |
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| CN104353814B (en) * | 2014-10-28 | 2016-08-24 | 山东滨州渤海活塞股份有限公司 | Alumina fibre titan oxide particles strengthens interior cold ring-mounted piston blank manufacture method |
| CN112459916B (en) * | 2020-10-30 | 2022-03-04 | 滨州渤海活塞有限公司 | Conformal soluble prefabricated part for piston of internal combustion engine and manufacturing method of piston |
| CN113000813A (en) * | 2021-02-23 | 2021-06-22 | 广州和德轻量化成型技术有限公司 | Die and method for producing aluminum alloy composite piston by indirect extrusion casting process |
| CN114273589A (en) * | 2021-11-10 | 2022-04-05 | 浙江跃进机械有限公司 | Inserted hot die forging piston mould |
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| JP3314141B2 (en) * | 1996-03-26 | 2002-08-12 | マツダ株式会社 | Preformed body for compounding, composite aluminum-based metal part obtained by compounding the preformed body, and method for producing the same |
| CN201620966U (en) * | 2010-02-11 | 2010-11-03 | 山东滨州渤海活塞股份有限公司 | Integral forged steel structural piston |
| CN201679576U (en) * | 2010-03-30 | 2010-12-22 | 山东滨州渤海活塞股份有限公司 | Integral aluminium-alloy piston bearing explosion pressure of 20MPa and having inner-cooling structure |
| CN102423843B (en) * | 2011-11-02 | 2013-06-05 | 山东滨州渤海活塞股份有限公司 | Manufacturing process of solid cold-spun forged steel piston with internal cooling oil chamber |
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| CN112648104A (en) * | 2020-12-07 | 2021-04-13 | 中国兵器科学研究院宁波分院 | Whisker reinforced aluminum alloy piston and preparation method thereof |
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Effective date of registration: 20170721 Address after: 256600 No. twenty-one, No. 569, Bohai Road, Shandong, Binzhou Patentee after: BINZHOU BOHAI PISTON Co.,Ltd. Address before: 256602 Bohai Road, Shandong, No. twenty-one, No. 569, Binzhou Patentee before: SHANDONG BINZHOU BOHAI PISTON Co.,Ltd. |
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Denomination of invention: Manufacturing method of internally cooled aluminum piston with aluminum borate whisker reinforced combustion chamber throat inlay ring Granted publication date: 20170104 Pledgee: Binzhou branch of China CITIC Bank Co.,Ltd. Pledgor: BINZHOU BOHAI PISTON Co.,Ltd. Registration number: Y2024980014544 |
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