CN204975327U - Pseudo - alloy prefab special mould - Google Patents
Pseudo - alloy prefab special mould Download PDFInfo
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- CN204975327U CN204975327U CN201520674332.8U CN201520674332U CN204975327U CN 204975327 U CN204975327 U CN 204975327U CN 201520674332 U CN201520674332 U CN 201520674332U CN 204975327 U CN204975327 U CN 204975327U
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Abstract
The utility model provides a pseudo - alloy prefab special mould, its characterized in that includes die block, lower mould, centre form, cushion, external mold reach goes up the mould, aforementioned die block up end is located to lower mould cavity, and the centre form is located the middle part of aforementioned lower mould and upwards stretches out aforementioned lower mould, and the up end of aforementioned die block is located to the cushion, the external mold is located the top and the cover of aforementioned cushion and locates the periphery of aforementioned lower mould and upwards stretch out aforementioned lower mould, going up mould cavity and cover and locating aforementioned centre form periphery and lie in the lower mould top, aforementioned lower mould up end and centre form lateral surface, external mold medial surface and the lower terminal surface of going up the mould constitute the molding cavity of prefab, and this molding cavity is the annular. Compared with the prior art, the mould is simple, the simple operation, and whole manufacturing process is simple and convenient, material utilization rate is high, the preparation is efficient, with low costs.
Description
Technical field
The utility model relates to a kind of mould for making pseudo-alloy prefabricated component, and the pseudo-alloy prefabricated component related to strengthens wear ring as first piston ring groove in advance and uses.
Background technology
At present, the rotating speed of high power density engine and increasing substantially of maximum combustion pressure, make the mechanical load suffered by first piston ring groove position sharply increase, and existing piston for diesel engine adopts high nickel cast iron edge circle to strengthen or Al in first ring groove location usually
2o
3short fiber composite material strengthens, high nickel cast iron edge ring and aluminum substrate bond strength low, only have 20 ~ 40MPa, thus cause that piston service life is short, dependability is poor.
High nickel cast iron edge circle adopts centrifugal casting to cause tubular blank usually, then is processed into by the mode of machining, and the utilization rate of material is lower.
Al
2o
3shot alumina fiber preform adopts and vacuumizes pressure filtration molding prefabricated component, if application number is open " a kind of Al of Chinese invention patent application of 200910099094.1
2o
3the preparation method of shot alumina fiber preform " (publication number is CN101575687B), the prefabricated component pretreatment procedure that the method makes is loaded down with trivial details, efficiency is lower, Ludox is easily assembled in the fiber preform top and bottom made, affect follow-up extruding process of osmosis, the composite formed after extrusion casint and aluminium alloy interface easily exist permeates bad interfacial effect.
Utility model content
Technical problem to be solved in the utility model provides for the above-mentioned state of the art a kind of intensity large and makes simple pseudo-alloy prefabricated component particular manufacturing craft.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of pseudo-alloy prefabricated component particular manufacturing craft, is characterized in that comprising
Bed die;
Counterdie, hollow is also located at aforementioned bed die upper surface;
Internal mold, is located at the upper surface of aforementioned bed die, and this internal mold is positioned at the middle part of aforementioned counterdie and protrudes upward aforementioned counterdie;
Cushion block, is located at the upper surface of aforementioned bed die;
External mold, is positioned at the top of aforementioned cushion block and is sheathed on the periphery of aforementioned counterdie and protrudes upward aforementioned counterdie; And
Patrix: hollow is also sheathed on aforementioned internal mold periphery and is positioned at above counterdie,
The lower surface of aforementioned counterdie upper surface and internal mold lateral surface, external mold medial surface and patrix forms the molding cavity of prefabricated component, and this molding cavity ringwise.
Described counterdie comprises epimere ring and the hypomere ring by epimere hoop downward-extension, the medial surface of aforementioned epimere ring and lateral surface respectively with the lateral surface of internal mold and the medial surface tight fit of external mold, medial surface and the lateral surface of aforementioned hypomere ring form gap respectively and between the lateral surface of internal mold and the medial surface of external mold.
Described patrix comprises lower ring and by the pressed on ring that lower hoop extends, the medial surface of aforementioned lower ring and lateral surface respectively with the lateral surface of internal mold and the medial surface tight fit of external mold, the medial surface of aforementioned pressed on ring and lateral surface form gap respectively and between the lateral surface of internal mold and the medial surface of external mold.
Upper die and lower die adopt " convex " word structural design, decrease the area of molding cavity mating surface, and the taking-up process of pressurization and sample is comparatively convenient, simultaneously also in order to reduce the wearing and tearing of mould.
Compared with prior art, mould is simple, and simple operation, overall manufacturing process is easy, stock utilization is high, make efficiency is high, cost is low.
Accompanying drawing explanation
Fig. 1 is the mould pressing process schematic diagram of pseudo-alloy prefabricated component in embodiment 1.
Fig. 2 is the mould die sinking process schematic of pseudo-alloy prefabricated component in embodiment 1.
Fig. 3 is the mould ejection pickup process schematic of pseudo-alloy prefabricated component in embodiment 1.
Fig. 4 is upper die structure schematic diagram in Fig. 1.
Fig. 5 is lower die structure schematic diagram in Fig. 1.
Fig. 6 is the structural representation obtaining pseudo-alloy prefabricated component in embodiment 1
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment 1: the preparation method of pseudo-alloy prefabricated component in the present embodiment, comprises the steps:
1. prepare pseudo-alloy powder particle, this alloy composition component and mass percent are:
Cr:16%; Ni:10%; Mo:2%; C:0.01%; All the other are Fe;
2. add binding agent, pseudo-alloy powder particle adds zinc stearate, and the additional proportion of pseudo-alloy powder particle and zinc stearate is mass ratio 10:1;
3. mixed powder, adds in mixing machine by pseudo-alloy powder particle and zinc stearate, adds steel ball, and the mixed powder time is 6h, after mixing, adopts sieve sieve to remove steel ball, obtains the powder mixed;
4. pseudo-alloy prefabricated component is made, made by special mould, as shown in Figure 1, Figure 2 and Figure 3, pseudo-alloy prefabricated component particular manufacturing craft comprises bed die 6, counterdie 4, internal mold 2, cushion block 5, external mold 3 and patrix 1, counterdie 4 hollow is also located at bed die 6 upper surface, internal mold 2 is located at the upper surface of bed die 6, and internal mold 2 is positioned at the middle part of counterdie 4 and protrudes upward counterdie 4, and cushion block 5 is located at the upper surface of bed die 6; External mold 3 is positioned at the top of cushion block 5 and is sheathed on the periphery of counterdie 4 and protrudes upward counterdie 4.
Patrix 1 hollow is also sheathed on internal mold 2 periphery and is positioned at above counterdie 4, and the lower surface of counterdie 4 upper surface and internal mold 2 lateral surface, external mold 3 medial surface and patrix 1 forms the molding cavity of prefabricated component, and molding cavity ringwise.
As shown in Figure 4, the pressed on ring 11 that patrix 1 comprises lower ring 12 and upwards extended by lower ring 12, the medial surface of lower ring 12 and lateral surface respectively with the lateral surface of internal mold 2 and the medial surface tight fit of external mold 3, the medial surface of pressed on ring 11 and lateral surface form gap respectively and between the medial surface of the lateral surface of internal mold 2 and external mold 3.
As shown in Figure 5, counterdie 4 comprises epimere ring 41 and by the hypomere ring 42 of epimere ring 41 to downward-extension, the medial surface of epimere ring 41 and lateral surface respectively with the lateral surface of internal mold 2 and the medial surface tight fit of external mold 3, the medial surface of hypomere ring 42 and lateral surface form gap respectively and between the medial surface of the lateral surface of internal mold 2 and external mold 3.
Patrix 1 and counterdie 4 adopt " convex " word structural design, decrease the area of molding cavity mating surface, and the taking-up process of pressurization and sample is comparatively convenient, simultaneously also in order to reduce the wearing and tearing of mould.
Add in molding cavity by the pseudo-alloy powder mixed shown in composition graphs 1, Fig. 2 and Fig. 3, put into patrix 1 and slowly pressurize, moulding pressure p is 100MPa, dwell time 30s, takes out patrix 1, is taken out by cushion block 5 and is placed on external mold 3, apply pressure, take out pseudo-alloy prefabricated component 7.
5. presintering, pseudo-alloy strengthens prefabricated component and puts into baking oven presintering, sintering temperature 350 DEG C, and sintering time is 1.5h, cools with stove;
6. high temperature sintering, the pseudo-alloy entering presintering is strengthened prefabricated component, and the sintering furnace putting into vacuum or nitrogen atmosphere carries out high temperature sintering, sintering temperature 1150 DEG C, and sintering time is 1.8h, with stove cooling, obtains pseudo-alloy and strengthens prefabricated component.
Squeeze cast form method is full of casting mold under pressure by being in liquid or semi-solid melt, solidifying the casting technique with crystallization.Be characterized in that, in forming parts and process of setting, casting mold pressures partially or drift are in removable state, make part crystallization produce certain distortion under stress, obtain the tissue of tiny densification and higher mechanical property.
When adopting squeeze cast form legal system for composite, the pseudo-alloy now pseudo-alloy powder being prefabricated into definite shape strengthens prefabricated component, the pseudo-alloy made is strengthened prefabricated component be preset in mould die cavity, then by extrusion casint extruding force, the hole that prefabricated component is infiltrated in the pressurization of molten alloy liquid is formed.
The pseudo-alloy prefabricated component obtained in the present embodiment, as shown in Figure 6, prefabricated component adopts powder extruding high temperature sintering shaping to concrete structure, and manufacturing process is easy, stock utilization is high, make efficiency is high, cost is low; This sintering process adopts zinc stearate solid binder fully to mix with pseudo-alloy powder particle, and after compacting, bond effect is good; Sinter under vacuum or nitrogen atmosphere, effectively stop the oxidation of pseudo-alloy powder, easily permeate in extrusion casint process, formed in conjunction with good composite.The bond strength of this composite and alloy matrix aluminum reaches more than 100MPa, and the elevated temperature strength that composite is 350 DEG C reaches 150MPa, and it is heat-resisting, wearability is all better than high nickel cast iron.
Embodiment 2: the preparation method of pseudo-alloy prefabricated component in the present embodiment, comprises the steps:
1. prepare pseudo-alloy powder particle, this alloy composition component and mass percent are:
Cr:17%; Ni:12%; Mo:2.5%; C:0.03%; All the other are Fe;
2. add binding agent, pseudo-alloy powder particle adds zinc stearate, and the additional proportion of pseudo-alloy powder particle and zinc stearate is mass ratio 10:1;
3. mixed powder, adds in mixing machine by pseudo-alloy powder particle and zinc stearate, adds steel ball, and the mixed powder time is 7h, after mixing, adopts sieve sieve to remove steel ball, obtains the powder mixed;
4. pseudo-alloy prefabricated component is made, adopt the particular manufacturing craft in embodiment 1, the pseudo-alloy powder mixed is added in the molding cavity of mould, put into patrix slowly to pressurize, moulding pressure p is 200MPa, dwell time 45s, take out patrix, being taken out by cushion block is placed on external mold, applies pressure, takes out pseudo-alloy and strengthens prefabricated component;
5. presintering, pseudo-alloy strengthens prefabricated component and puts into baking oven presintering, sintering temperature 380 DEG C, and sintering time is 1.8h, cools with stove;
6. high temperature sintering, the pseudo-alloy entering presintering is strengthened prefabricated component, and the sintering furnace putting into vacuum or nitrogen atmosphere carries out high temperature sintering, sintering temperature 1180 DEG C, and sintering time is 1.9h, with stove cooling, obtains pseudo-alloy prefabricated component.
The pseudo-alloy prefabricated component obtained in the present embodiment, as shown in Figure 6, prefabricated component adopts powder extruding high temperature sintering shaping to concrete structure, and manufacturing process is easy, stock utilization is high, make efficiency is high, cost is low; This sintering process adopts zinc stearate solid binder fully to mix with pseudo-alloy powder particle, and after compacting, bond effect is good; Sinter under vacuum or nitrogen atmosphere, effectively stop the oxidation of pseudo-alloy powder, easily permeate in extrusion casint process, formed in conjunction with good composite.The bond strength of this composite and alloy matrix aluminum reaches more than 100MPa, and the elevated temperature strength that composite is 350 DEG C reaches 150MPa, and it is heat-resisting, wearability is all better than high nickel cast iron.
Embodiment 3: the preparation method of pseudo-alloy prefabricated component in the present embodiment, comprises the steps:
1. prepare pseudo-alloy powder particle, this alloy composition component and mass percent are:
Cr:18%; Ni:14%; Mo:3%; C:0.06%; All the other are Fe;
2. add binding agent, pseudo-alloy powder particle adds zinc stearate, and the additional proportion of pseudo-alloy powder particle and zinc stearate is mass ratio 10:1;
3. mixed powder, adds in mixing machine by pseudo-alloy powder particle and zinc stearate, adds steel ball, and the mixed powder time is 6h ~ 8h, after mixing, adopts sieve sieve to remove steel ball, obtains the powder mixed;
4. pseudo-alloy prefabricated component is made, adopt the particular manufacturing craft in embodiment 1, the pseudo-alloy powder mixed is added in the molding cavity of internal mold, external mold and counterdie composition, put into patrix slowly to pressurize, moulding pressure p is 300MPa, dwell time 60s, take out patrix, being taken out by cushion block is placed on external mold, applies pressure, takes out pseudo-alloy prefabricated component;
5. presintering, pseudo-alloy strengthens prefabricated component and puts into baking oven presintering, sintering temperature 400 DEG C, and sintering time is 2h, cools with stove;
6. high temperature sintering, the pseudo-alloy entering presintering is strengthened prefabricated component, and the sintering furnace putting into vacuum or nitrogen atmosphere carries out high temperature sintering, sintering temperature 1200 DEG C, and sintering time is 2h, with stove cooling, obtains pseudo-alloy prefabricated component.
The pseudo-alloy prefabricated component obtained in the present embodiment, as shown in Figure 6, prefabricated component adopts powder extruding high temperature sintering shaping to concrete structure, and manufacturing process is easy, stock utilization is high, make efficiency is high, cost is low; This sintering process adopts zinc stearate solid binder fully to mix with pseudo-alloy powder particle, and after compacting, bond effect is good; Sinter under vacuum or nitrogen atmosphere, effectively stop the oxidation of pseudo-alloy powder, easily permeate in extrusion casint process, formed in conjunction with good composite.The bond strength of this composite and alloy matrix aluminum reaches more than 100MPa, and the elevated temperature strength that composite is 350 DEG C reaches 150MPa, and it is heat-resisting, wearability is all better than high nickel cast iron.
Claims (3)
1. a pseudo-alloy prefabricated component particular manufacturing craft, is characterized in that comprising
Bed die;
Counterdie, hollow is also located at aforementioned bed die upper surface;
Internal mold, is located at the upper surface of aforementioned bed die, and this internal mold is positioned at the middle part of aforementioned counterdie and protrudes upward aforementioned counterdie;
Cushion block, is located at the upper surface of aforementioned bed die;
External mold, is positioned at the top of aforementioned cushion block and is sheathed on the periphery of aforementioned counterdie and protrudes upward aforementioned counterdie; And
Patrix: hollow is also sheathed on aforementioned internal mold periphery and is positioned at above counterdie,
The lower surface of aforementioned counterdie upper surface and internal mold lateral surface, external mold medial surface and patrix forms the molding cavity of prefabricated component, and this molding cavity ringwise.
2. pseudo-alloy prefabricated component particular manufacturing craft according to claim 1, it is characterized in that described counterdie comprises epimere ring and the hypomere ring by epimere hoop downward-extension, the medial surface of aforementioned epimere ring and lateral surface respectively with the lateral surface of internal mold and the medial surface tight fit of external mold, medial surface and the lateral surface of aforementioned hypomere ring form gap respectively and between the lateral surface of internal mold and the medial surface of external mold.
3. pseudo-alloy prefabricated component particular manufacturing craft according to claim 1 and 2, it is characterized in that described patrix comprises lower ring and by the pressed on ring that lower hoop extends, the medial surface of aforementioned lower ring and lateral surface respectively with the lateral surface of internal mold and the medial surface tight fit of external mold, the medial surface of aforementioned pressed on ring and lateral surface form gap respectively and between the lateral surface of internal mold and the medial surface of external mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674332.8U CN204975327U (en) | 2015-09-01 | 2015-09-01 | Pseudo - alloy prefab special mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674332.8U CN204975327U (en) | 2015-09-01 | 2015-09-01 | Pseudo - alloy prefab special mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204975327U true CN204975327U (en) | 2016-01-20 |
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ID=55109747
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520674332.8U Expired - Fee Related CN204975327U (en) | 2015-09-01 | 2015-09-01 | Pseudo - alloy prefab special mould |
Country Status (1)
| Country | Link |
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| CN (1) | CN204975327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081316A (en) * | 2015-09-01 | 2015-11-25 | 中国兵器科学研究院宁波分院 | Special mold for pseudo alloy prefabricated member and pseudo alloy prefabricated member preparing method adopting same |
| CN109402440A (en) * | 2018-11-02 | 2019-03-01 | 中国兵器科学研究院宁波分院 | A kind of dead size manufacturing process of high thermal conductivity aluminum matrix composite substrate |
-
2015
- 2015-09-01 CN CN201520674332.8U patent/CN204975327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081316A (en) * | 2015-09-01 | 2015-11-25 | 中国兵器科学研究院宁波分院 | Special mold for pseudo alloy prefabricated member and pseudo alloy prefabricated member preparing method adopting same |
| CN109402440A (en) * | 2018-11-02 | 2019-03-01 | 中国兵器科学研究院宁波分院 | A kind of dead size manufacturing process of high thermal conductivity aluminum matrix composite substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180901 |
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| CF01 | Termination of patent right due to non-payment of annual fee |