CN1824408A - External heating metal container high temperature ultrahigh water pressure once shaping technology method and equipment - Google Patents
External heating metal container high temperature ultrahigh water pressure once shaping technology method and equipment Download PDFInfo
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- CN1824408A CN1824408A CNA2005100899390A CN200510089939A CN1824408A CN 1824408 A CN1824408 A CN 1824408A CN A2005100899390 A CNA2005100899390 A CN A2005100899390A CN 200510089939 A CN200510089939 A CN 200510089939A CN 1824408 A CN1824408 A CN 1824408A
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Abstract
The present invention relates to a technique, its method and equipment for forming necked container-shaped metal component by utilizing great internal high pressure produced by water under the condition of high temperature through single-operation process. Said equipment is formed from three portions: 1. heating and forming equipment: concave ceramic die and external electroheating high-temperature furnace; 2. metal container blank and carriage: container blank, sealing plug, working water and blank carriage; and 3. control equipment: temperature, die and carriage control equipments. Besides, said invention also provides the concrete steps of its forming method.
Description
1. technical field
The present invention relates to the container-like metal parts water pressure once shaping technology of a kind of brand-new reducing, method and apparatus.Concrete, this technology of huge static pressure and the relevant device that utilize water at high temperature to be produced exactly carry out the once-forming of the container-like metal parts of reducing.
Required inner high voltage derives from the immense pressure that high-temperature water produces in the forming process, and shaping medium is superhigh-pressure high-temp water (supercritical water), and metal stock is to be shaped under the condition of high temperature.
2. background technology
Usually said hydroforming (internal high pressure forming) at present is to be source pressure with hydraulic pump (water pump or oil pump), normal temperature fluid (water or oil) is a shaping medium, make blank with tubing, apply highly pressurised liquid by tubing inside and pipe is pressed into makes it be configured as required workpiece in the die cavity.Specifically metal blank is put into the die cavity of a hydroforming assembly and provided high-pressure fluid to blank inside, so that the outside expansion of blank is consistent with the qualification cavity surface with hydraulic pump.Shortcoming of the method and limitation: 1. cost is higher, needs a high-performance high-pressure hydraulic pump; 2. operating pressure is relatively low, and maximum working pressure is generally about 0.3-0.5GPa; 3. it is comparatively difficult to boost, and for common hydraulic pump, if will promote 0.1GPa again on the basis of working pressure range, specification requirement is very high, and usually comparatively difficult; 4. the metal parts outer surface of being processed is easy to generate fan-shaped microfissure, because metal blank is a dilatancy under the low temperature rigid state; 5. process high duty metal parts (as titanium alloy etc.) and be restricted, because of being processes under low-temperature condition; 6. process the thick-walled metal material components and be restricted, because of being processes under low-temperature condition.
3. summary of the invention
The present invention is a kind of external heating metal container high temperature ultra high water pressure once shaping technology, method and apparatus.The present invention utilizes water (supercritical fluid) this technology of huge static pressure and relevant device of being produced at high temperature, carries out the once-forming of the container-like metal parts of reducing.This method is the residing state of metal from pressure mechanism of production, shaping medium, forming process no matter, and still all different with traditional hydroforming technology and equipment from the element of installation, it is a kind of brand-new technology, method and apparatus.
It is that transmission medium superhigh-pressure high-temp thermal simulation experiment result proposes with water that the present invention is based on the p-V-T graph of a relation of state equation, water of water and following two groups: 1. the external diameter with topped up with water (about 6-7 drips) is 48mm, internal diameter is 8mm, boss ratio is that 1: 6 Rene41 titanium maxter alloy autoclave is sealed by the taper chock plug, put into the tube furnace by temperature controller control then, Jia Re mode heats up gradually by pre-set program in addition.When furnace temperature rises to 350 ℃, find to make the outside also breach (seeing Figure 1B-1) of explosion long 27mm, a wide 11mm that expands of this titanium maxter alloy autoclave body by the huge inner high voltage that high-temperature water produced of kettle inside; 2. same experimental technique, with the external diameter of topped up with water (about 8-9 drips) is 60mm, and internal diameter is 8mm, and boss ratio is that two stainless steel autoclave bodies of 1: 7.5 are sealed by the taper chock plug, put into tube furnace then, Jia Re mode heats up gradually by the program that pre-sets in addition.When furnace temperature rises to 450 ℃ and 480 ℃, cause two stainless steel autoclave bodies all outwards to expand by the huge inner high voltage that high-temperature water produced of autoclave inside, the 60mm of kettle external diameter before by experiment dilatancy respectively is 63.1mm and 64.3mm (seeing Figure 1B-2).This phenomenon by we utilize aqueous medium at high temperature the huge static pressure of generation, the once-forming that carries out the container-like metal parts of reducing provides foundation.
A content of the present invention relates to a kind of huge static pressure of utilizing water at high temperature to be produced, the technology of the container-like metal parts of once-forming reducing (seeing Fig. 2 A).Its characteristics are that inner high voltage required in the forming process derives from the immense pressure that water is at high temperature produced.The p-V-T relation of water is the basic physical chemical property of water, and the density of water changes and changes along with temperature and pressure, and when increased pressure, the density of fluid can change to the density value of liquid water continuously from the density value of steam.At high temperature, during as 200 ℃, 500 ℃ and 1000 ℃, keep the density (1g/cm of water under the normal temperature and pressure
3), required external pressure will reach 0.3GPa, 0.8GPa, 1.82GPa respectively.In other words, the canister of water-filled (or packing density is 100%) sealing is heated to 200 ℃, 500 ℃ and 1000 ℃ respectively, high-temperature water in the container will produce the pressure of about 0.3GPa, 0.8GPa, 1.82GPa, and stepless action in around on the chamber wall (seeing Figure 1A).We utilize this characteristic of water to carry out the once-forming of the container-like metal parts of reducing just.Be about to be full of the canister blank of water or the certain water gaging of filling, sealed; The electrothermal high-temperature stove of putting into burner hearth then and be the ceramic material mould of spill, high-strength high temperature-resistant heats; Rising along with water temperature, also increase sharply by the pressure that high-temperature water produced in the container blank, when pressure that high-temperature water produced surpasses the tension force that chamber wall can bear, the wall of expansion vessel blank makes its distortion, this moment is if controlled with female mold, just obtains the various container-like metal parts of reducing (seeing Fig. 2 A and 2B) that not only had formalness but also had the double-form of external morphology.Water at high temperature can produce the huge inner high voltage that is used for the expansion vessel blank can be from above-mentioned two groups of high temperature and pressure experiments be confirmed (seeing Figure 1B-1, Figure 1B-2).
Second content of the present invention relates to a kind of outer heating and produces the technology and the assembly (see figure 4) of the required inner high voltage of the container-like metal parts of shaping reducing.Be about to the electrothermal high-temperature stove and place container blank outside, the wall that sees through the container blank working water in the heating container blank from outside to inside makes it produce the required inner high voltage of expansion vessel blank wall to high temperature.
Present technique mainly is made up of container blank, external electrothermal high-temperature stove, working water, sealing plug four parts.
The 3rd content of the present invention is external heating metal container high temperature ultra high water pressure once-forming equipment.This equipment mainly comprises three parts and 12 basic module (see figure 4)s.First is heating and former: comprise high strength, high temperature ceramic material female mold (1); Electrothermal high-temperature stove (2) and furnace shell (3).Second portion is canister blank and support: comprise canister blank (8), container blank carriage (5), sealing plug (6), working water (9).Third part is a control appliance: comprise Temperature-controlled appliance (2,10), mould open/close control appliance (4,11), canister blank support mobile control device (7,12).
Equipment characteristic is: 1. high-temperature electric heat stove and spill ceramic material mould put together, and both are bordering on the one design, and the burner hearth of high temperature furnace is high strength, resistant to elevated temperatures spill ceramic material mould; 2. the electrothermal high-temperature stove places the outside of ceramic die, adopts the mode of outer heating, sees through the working water that ceramic die is opposite in the canister blank in the die cavity indirectly and heats, and makes it produce the required inner high voltage of expanding metal blank; 3. canister blank carriage can adopt the single-column type design, also can adopt the design of array or rotating disc type, and corresponding with mould, and one batch can be loaded and unloaded, process a plurality of metal parts; 4. this equipment not only can processing thin-walled, low intensive metal material (as copper, aluminium alloy etc.), the heavy wall that also can be shaped, high-strength metal material (as titanium alloy, carbon steel, and stainless steel etc.); 5. this equipment not only can be processed as the container-like metal parts of the simple reducing of form such as circular, oval, square, also can be shaped as the container-like metal parts (see figure 3) of the reducing of complex shapes such as beading.
The 4th content of the present invention is external heating metal container high temperature ultra high water pressure once-forming method (seeing Fig. 5 A, 5B, 5C, 5D and 5E).The steps include:
1) the metal blank preprocessing is become wall thickness container-like uniformly (or tubular) metal stock;
2) will be full of water or the certain water gaging of filling in the canister blank, and sealed with taper (or spherical) chock plug.Metal material difference, sheet metal thickness difference, sheet metal deformation extent difference, the packing density of water are also different;
3) the canister blank with topped up with water (or the certain water gaging of filling) and sealing places the spill ceramic material mould of overcoat high temperature furnace;
4) adopt the outer mode that heats, temperature programming electrothermal high-temperature stove is to pre-set temperature.Rising along with furnace temperature, the pressure that is produced by high-temperature water (supercritical water) in the container blank also increases sharply, when the pressure that is produced when container blank internal high temperature water (supercritical water) surpasses the tension force that canister blank wall can bear, the wall of expanding metal container blank makes its distortion, until its outer surface and mould inner mould surface basically identical.In addition, the temperature when metal blank begins to expand should be near the yield temperature of this metal, and just metal stock is to expand being bordering under the state of plasticity, and this calculates and test each metal material packing density of water in forming process with regard to requiring.
5) stop heating, when the water in metal parts of being processed and the container is reduced to safe temperature, open mould and chock plug, so just obtain the various container-like metal parts of reducing that not only had formalness but also had the double-form of external morphology.
For the container-like metal parts of reducing, conventional fabrication processes is generally and strikes out 2 half sheets of shape earlier and be welded into integrated member again.Compare with the punching press welding procedure, the major advantage that HTHP fluid power is shaped is to alleviate quality, economical with materials; Reduce the quantity of part and mould, reduced die cost and production cost; Product strength and rigidity have been improved.
The present invention and traditional hydroforming maximum different have 3 points: 1. pressure mechanism of production (or source pressure) difference.Source pressure mechanical pressure in hydraulic pump in the conventional hydraulic forming process.And the inner high voltage among the present invention derives from the huge static pressure that water itself is at high temperature produced in the high-pressure bottle; 2. shaping medium difference.Shaping medium in the conventional hydraulic forming process is normal temperature fluid (water or an oil), and the shaping medium among the present invention is superhigh-pressure high-temp water (supercritical water), but not traditional liquid; 3. the residing state difference of metal stock in the forming process.Metal material is a dilatancy under the low temperature rigid state in the conventional hydraulic forming process, and metal stock is to be bordering on dilatancy under the state of plasticity at high temperature among the present invention, and these characteristics have a significant impact product quality; 4. former assembly that is caused thus and processing method are also different.
Compare with traditional hydroforming, this method has following several respects advantage: 1. cost is low, and the capital equipment assembly is high strength, high temperature ceramic material mould and high temperature furnace; 2. the non-constant width of working pressure scope can vary continuously to 20,000 atmospheric pressure from tens atmospheric pressure always, even higher; 3. supercharging is very easy to, as long as the electrothermal high-temperature stove is heated to 200 ℃, 500 ℃, 1000 ℃ with the water in the canister blank cavity, can reach 300MPa, 800MPa, 1800MPa by the pressure that high-temperature water produced in the container; 4. institute's processing component wall thickness and quality are even, because the canister blank is to expand a kind of being bordering under the mecystasis, i.e. and plastic deformation, so as long as condition is calculated and control is suitable, the canister outer wall is owing to the fan-shaped microfissure that is produced that expands just can be avoided; But the 5. difficult container-like metal parts that is shaped such as machining titanium alloy, high strength steel is because of being is shaped under the elevated temperature heat state; 6. can process thick-walled vessel shape metal parts, because of being expands under the elevated temperature heat state.
4. description of drawings
Figure 1A is at high temperature produced the immense pressure schematic diagram by water;
The canister of water-filled sealing is heated to 200 ℃, 500 ℃ and 1000 ℃ respectively, will reaches 200MPa, 800MPa, 1800MPa by the inner high voltage that high-temperature water produced in the container.
Figure 1B-1 titanium, molybdenum alloy autoclave under 350 ℃ of inner high voltage effects that high-temperature water produced, expand and rupture diagram (A) kettle wall thickness and boss ratio (external diameter 48mm, internal diameter 8mm, boss ratio 1: 6) (B)
Expansion plans (A) kettle wall thickness and boss ratio (external diameter 60mm, internal diameter 8mm, boss ratio 1: 7.5) be (B) under 480 ℃ of inner high voltage effects that high-temperature water produced for Figure 1B-2 stainless steel autoclave
Fig. 2 A is a metal container high temperature ultrahigh-pressure hydraulic once shaping technology schematic diagram of the present invention; The container-like metal parts of immense pressure once-forming reducing that utilizes water at high temperature to be produced
A-normal temperature is not out of shape; B-low temperature initial bubble; Warm medium expansion among the c-; The complete expansion of d-high temperature.
Fig. 2 B is a metal container high temperature ultrahigh-pressure hydraulic once-forming step schematic diagram of the present invention;
A-adds water; The b-sealing; The c-heating; D-expands.
The container-like metal parts product of Fig. 3 part reducing schematic diagram
The a-ellipse; The b-circle; C-is square; D-beading shape.
Fig. 4 is outer heating HTHP canister fluid power once-forming equipment of the present invention and main member schematic diagram
1-high strength, high temperature resistant spill ceramic material mould; 2-adds thermoelectric hot high temperature furnace; The 3-furnace shell; 5-canister blank support (1. is an array type metal container blank carriage schematic diagram of the present invention; 2. be rotating disk canister blank carriage schematic diagram of the present invention);
The 6-sealing plug; 8-canister blank; The 9-working water; The 10-Temperature-controlled appliance;
11-mould open/close control appliance; 12-container blank support mobile control device.
Fig. 5 A heats HTHP canister fluid power once-forming step schematic diagram outward
The metal blank preprocessing is become wall thickness container-like uniformly (or tubular) metal stock, then with topped up with water in the container blank cavity (or certain water gaging).
Fig. 5 B heats HTHP canister fluid power once-forming step schematic diagram outward
Sealed with the container-like metal stock openend of taper chock plug, and to place burner hearth be that the electrothermal high-temperature stove of high strength, high temperature resistant recessed ceramic material mould heats topped up with water.Container-like metal blank is in not deformation state of low temperature among the figure.
Fig. 5 C heats HTHP canister fluid power once-forming step schematic diagram outward
Along with the rising of furnace temperature, the pressure that is produced by high-temperature water (supercritical water) in the container blank also increases sharply, and when high temperature hydraulic pressure surpassed the tension force that canister blank wall can bear, the wall of expanding metal container blank made its distortion.Metal blank is in the initial bubble state among the figure.
Fig. 5 D heats HTHP canister fluid power once-forming step schematic diagram outward
Along with the further rising of the temperature and pressure of working water in the canister blank, the wall of container blank continues dilatancy, until the surperficial basically identical of its outer surface and female mold internal mold.Metal blank is in high temperature complete expansion state among the figure;
Fig. 5 E heats HTHP canister fluid power once-forming step schematic diagram outward
Stop heating, when the water temperature in the container is reduced to safe temperature, open mould and taper chock plug, and take out the worker's of institute the container-like metal parts of reducing.
5. detailed description of preferred embodiment
The field that this method and technology are suitable for is very wide, it not only can be used for automobile (motorcycle) industry, mechanical industry, light industry, also can be used for naval vessel industry (especially submarine), aircraft industry, aerospace industry (as all kinds of missile airframes, airship return capsule etc.) and weapon industry etc.
This is a preferred embodiment with oval (or circular) container-like metal parts of reducing temporarily, described in specific implementation method and procedure of processing such as Fig. 5 A-5E.
Claims (10)
1. huge static pressure of utilizing water at high temperature to be produced, the technology of the container-like metal parts of once-forming reducing.The present invention is based on the state equation of water, p-V-T graph of a relation and following two groups of superhigh-pressure high-temp thermal simulation experiment results of water.
Its technical characterstic is that inner high voltage required in the forming process derives from the immense pressure that water is at high temperature produced.According to the p-V-T graph of a relation of water and the state equation of water, the density of water changes and changes along with temperature and pressure, and when increased pressure, the density of fluid can change to the density value of liquid water continuously from the density value of steam.At high temperature, during as 200 ℃, 500 ℃ and 1000 ℃, keep the density (1g/cm of water under the normal temperature and pressure
3), required external pressure will reach 0.3GPa, 0.8GPa, 1.82GPa respectively.In other words, the canister of water-filled (being that packing density is 100%) sealing is heated to 200 ℃, 500 ℃ and 1000 ℃ respectively, high-temperature water in the container will produce the inner high voltage of about 0.3GPa, 0.8GPa, 1.82GPa, and stepless action in around on the chamber wall.We utilize this characteristic of water to carry out the once-forming of the container-like metal parts of reducing just.Be about to be full of the canister blank of water or the certain water gaging of filling, sealed; The electrothermal high-temperature stove of putting into burner hearth then and be the ceramic material mould of high-strength high temperature-resistant directly heats; Rising along with water temperature, the pressure that is produced by hot operation water in the container blank also increases rapidly, when inner high voltage that high-temperature water produced surpasses the tension force that container blank wall can bear, the wall of expansion vessel blank makes its distortion, this moment is if controlled with female mold, just obtains the various container-like metal parts of double-form reducing that not only had formalness but also had external morphology.Water at high temperature can produce the huge inner high voltage that is used for the expansion vessel blank and can be confirmed from following two groups of high temperature and pressure experiments.
One group is that external diameter with topped up with water (about 6-7 drips) is 48mm, internal diameter is 8mm, boss ratio is that 1: 6 Rene41 titanium maxter alloy autoclave is sealed by the taper chock plug, puts into the tube furnace by temperature controller control then, and Jia Re mode heats up gradually by pre-set program in addition.When furnace temperature rises to 350 ℃, find to make the outside also breach of explosion long 27mm, a wide 11mm that expands of this titanium maxter alloy autoclave body by the huge inner high voltage that high-temperature water produced of kettle inside; Second group of experimental technique is identical with first group, the external diameter that is about to topped up with water (about 8-9 drips) is 60mm, internal diameter is 8mm, boss ratio is that two stainless steel autoclave bodies of 1: 7.5 are sealed by the taper chock plug, put into tube furnace then, Jia Re mode heats up gradually by the program that pre-sets in addition.When furnace temperature rises to 450 ℃ and 480 ℃, cause two stainless steel autoclave bodies all outwards to expand by the huge inner high voltage that high-temperature water produced of autoclave inside, the 60mm of kettle external diameter before by experiment dilatancy respectively is 63.1mm and 64.3mm.This phenomenon by we utilize aqueous medium at high temperature the huge static pressure of generation, the once-forming that carries out the container-like metal parts of reducing provides foundation.
The present invention and at present conventional hydroforming maximum different have 3 points: 1. pressure mechanism of production (or source pressure) difference.The mechanical pressure of source pressure in hydraulic pump in the conventional hydroforming process, and the inner high voltage among the present invention derives from the huge hydrostatic pressing that the water in the container blank is at high temperature produced; 2. shaping medium difference.Shaping medium in the conventional hydroforming process is normal temperature liquid (water or an oil), and the shaping medium among the present invention is superhigh-pressure high-temp water (supercritical water), but not traditional liquid; 3. the residing state difference of metal stock in the forming process.Metal material is a dilatancy under the low temperature rigid state in the conventional hydroforming process, and metal stock is to be bordering on dilatancy under the mecystasis at high temperature among the present invention; 4. former assembly that is caused thus and processing method are also different.Conventional hydraulic forming equipment mainly is made up of hydraulic pump, mould and metal stock, and present device mainly comprises external high temperature furnace, high temperature resistant (pottery or metal material) mould and canister blank.
2. the working water outside adopting in the method heating container blank of heating makes the technology and the assembly of the required inner high voltage of its generation expansion vessel blank wall and the container-like metal parts of once-forming reducing to high temperature.Be about to the electrothermal high-temperature stove and place container blank outside, the wall that sees through the container blank working water in the heating container blank from outside to inside makes it produce the required inner high voltage of expansion vessel blank wall to high temperature.
Present technique mainly is made up of container blank, external electrothermal high-temperature stove, working water, sealing plug four parts.
3. external heating metal container high temperature ultra high water pressure once-forming equipment.Equipment mainly comprises 12 basic modules of three parts.First comprises high strength, resistant to elevated temperatures spill ceramic material mould (1), external electrothermal high-temperature stove (2) and furnace shell (3) for heating and former; Second portion is canister blank and mobile device, comprises canister blank (8) and carriage (5), sealing plug (6), working water (9).Third part is a control appliance, comprises Temperature-controlled appliance (2,10), mould open/close control appliance (4,11) and canister blank carriage mobile control device (7,12).
Equipment characteristic is that electrothermal high-temperature stove and spill ceramic die put together, and both are bordering on the one design, and the burner hearth of high temperature furnace is high strength, resistant to elevated temperatures spill ceramic material mould.The electrothermal high-temperature stove places ceramic die outside, adopts the mode of outer heating, sees through the working water that ceramic die is opposite in the canister blank in the die cavity indirectly and heats, and makes it produce the required inner high voltage of expansion vessel blank.
4. external heating metal container high temperature ultra high water pressure once-forming method.This method step is: 1. preprocessing wall thickness even metal container blank; 2. will be full of water or a certain amount of water of filling in the canister blank, and sealed with the taper chock plug; 3. the canister blank with topped up with water and sealing places the die cavity of overcoat high temperature furnace to heat, rising along with furnace temperature, the pressure that is produced by hot operation water (supercritical water) in the container blank also increases sharply, when this high temperature hydraulic pressure surpasses the tension force that canister blank wall can bear, the wall of expansion vessel blank makes its distortion, until its outer surface and female mold internal mold surface basically identical; 4. stop heating,, open mould, so just obtain the various container-like metal parts of reducing that not only had formalness but also had the double-form of external morphology when the working water temperature drop in the container during to safe temperature.
5. the die assembly described in claim 3 (1).It is characterized by high strength, resistant to elevated temperatures spill ceramic die (as silicon nitride ceramics mould etc.).Mould is divided into left and right sides two halves usually, can free folding and control (4,11) by hydraulic machinery.A left side mould and right mould are female mold, and any machinable form of its internal mold form for limiting is as other any forms such as cucurbit shape, beading, square, triangle, circle, trapezoidal, ellipses.Its left and right sides die cavity volume morphing can be identical, symmetry, also can be different, asymmetrical.
6. external high temperature furnace (2) described in claim 3 and furnace shell (3) assembly.It is characterized by: the electrothermal high-temperature stove places the mould outside, and the mode of heating to high temperature, makes it produce the required inner high voltage of expansion capacity wall through the working water in the mold heated container blank outside adopting.If use high-resistance alloy (as Ni-Cr and Fe-Cr-Al alloy) heating (heating wire or ribbon heater) when the electric furnace operating temperature is lower than 1000 ℃, use electrothermal silicon carbide element (rod or pipe) when operating temperature is 1000-1350 ℃, use platinum, Pt-Rh wire or molybdenum silicide heating (rod or pipe) when 1350-1600 ℃ (being up to 1800 ℃).The electrothermal high-temperature stove matches with mould, also is divided into left and right sides two halves, and its folding is controlled by hydraulic machinery (4,11).The electrothermal high-temperature stove can be single setting together with female mold, also can be that a plurality of electrothermal high-temperature stoves (burner hearth is a spill ceramic material mould) are array, or be rotating disc type combination, and cooperate with array or rotating disc type canister blank carriage (5), once can process a plurality of identical or different container-like metal parts simultaneously.
Furnace shell assembly (3) is to be made by steel plate, tightly is enclosed within the outside of electrothermal high-temperature stove, plays fastening mould and high temperature furnace, the impulsive force in the time of can bearing the thermal expansion of canister blank.Outer cover of steel plate matches with mould (1) and high temperature furnace (2), and the three also is divided into left and right sides two halves for being bordering on the one design, and its folding is controlled by hydraulic machinery (4,11).
7. the canister blank carriage (5) described in claim 3.It is characterized in that the placement that processes by stainless steel material and the carriage of fixing metal container blank, can adopt the single-column type design, also can adopt array or rotating disc type (5) design, and and cooperation corresponding with mould (1) and electrothermal high-temperature stove (2), one batch can be loaded and unloaded, process the container-like metal parts of a plurality of identical or different reducings.
8. the canister blank sealing plug assembly (6) described in claim 3.It is characterized by the taper or the spherical chock plug that process by high-strength metal material, with the conical surface-conical surface, the conical surface-ball face sealing of container blank openend employing based on elastic deformation.
9. the container-like metal blank (8) described in claim 3 reaches working water (9) wherein.The container blank is the uniform tubular blank of wall thickness that is formed by the metal stock preprocessing, it can be the canister blank of dissimilar, different wall, different boss ratios, comprise high-intensity titanium alloy, carbon steel, stainless steel, and metal material such as low intensive copper, aluminium alloy.
Working water in the container (9) is light water, during work and add a spot of ethylene glycol, to reduce the corrosion of high-temperature high pressure water (supercritical water) to canister blank inwall.Its charging quantity and packing density are with the character (intensity, yield temperature, the coefficient of expansion, ductility etc.) of canister blank material, degrees of expansion, the thick difference of wall of a container and difference.
10. the control appliance described in claim 3 comprises Temperature-controlled appliance assembly (2,10), mould open/close control appliance assembly (4,11) and canister (blank) carriage mobile control device assembly (7,12).Its feature is as follows:
Temperature-controlled appliance assembly (2,10) is in order to intensification, cooling and the constant temperature of control high temperature furnace.Thermocouple has two kinds, and a kind of is nichrome alumino-nickel couple, and temperature measurement accuracy can reach 0.2 ℃; Another kind is a platinum platinum-rhodium thermocouple, and temperature measurement accuracy can reach 0.2 ℃.This Temperature-controlled appliance is a kind of programmable temperature programming controller.
Mould open/close control appliance assembly (4,11), the mode that adopts hydraulic machinery to control is in order to control the folding of left mould or right mould.And in the canister process, mould is applied certain external force, thus make the canister blank touch mould in a flash in expansion, between the mould of the left and right sides relative displacement can not take place.
Canister (blank) carriage mobile control device assembly (7,12), adopt machinery control, by about, the mode that moves of all around, the canister blank is put into the die cavity (1) of overcoat high temperature furnace in first being processed, after machining, again the container-like metal parts of reducing is taken out fast.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2005100899390A CN1824408A (en) | 2005-08-08 | 2005-08-08 | External heating metal container high temperature ultrahigh water pressure once shaping technology method and equipment |
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| CNA2005100899390A CN1824408A (en) | 2005-08-08 | 2005-08-08 | External heating metal container high temperature ultrahigh water pressure once shaping technology method and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791735A (en) * | 2017-09-03 | 2018-03-13 | 深圳钜诚金匠银艺文化有限公司 | Process the mould and method of precious metal vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791735A (en) * | 2017-09-03 | 2018-03-13 | 深圳钜诚金匠银艺文化有限公司 | Process the mould and method of precious metal vessel |
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