CN103722121A - Phosphate composite material as well as preparation method and salt core of phosphate composite material - Google Patents
Phosphate composite material as well as preparation method and salt core of phosphate composite material Download PDFInfo
- Publication number
- CN103722121A CN103722121A CN201410007729.1A CN201410007729A CN103722121A CN 103722121 A CN103722121 A CN 103722121A CN 201410007729 A CN201410007729 A CN 201410007729A CN 103722121 A CN103722121 A CN 103722121A
- Authority
- CN
- China
- Prior art keywords
- phosphate
- composite material
- salt core
- sintering
- phosphate composite
- 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.)
- Granted
Links
Abstract
The invention provides a phosphate composite material. The phosphate composite material comprises metal halide salt and a phosphate-metal oxide copolymer obtained by copolymerization from powdery phosphate and powdery metal oxide, wherein the mass ratio of powdery phosphate, powdery metal oxide and metal halide salt is (200-240): (150-180):100000. According to the invention, the phosphate-metal oxide copolymer obtained by copolymerization from powdery phosphate and powdery metal oxide can be uniformly dispersed into the metal halide salt, so that the phosphate composite material obtained is uniform in component, so that the intensity vibration of the phosphate composite material is small, and the performances are stable; moreover, the phosphate-metal oxide copolymer obtained by copolymerization from powdery phosphate and powdery metal oxide is of a net-shaped structure; and metal halide salt can be attached to the net-shaped structure, so that the intensity of the phosphate composite material is high.
Description
Technical field
The present invention relates to casting technology field, relate in particular to a kind of phosphate composite material and preparation method thereof and salt core.
Background technology
Salt core is a kind of energy core water-soluble or can be smoothly under the impact of the current of certain pressure defeated and dispersed from foundry goods, that depart from.Salt core is mainly used in the inner-cooling oil recess of manufacturing internal combustion engine, and internal combustion engine is in running, and the top land of aluminum alloy material directly contacts high-temperature fuel gas, bears the working environment of HTHP; But the heat resistance of aluminium alloy is poor, after temperature surpasses 360 ℃, in various degree softening will be there will be.In order to reduce the operating temperature of all-aluminium piston head; ensure all-aluminium piston normally operation in internal combustion engine; prior art can cast out interior cooling oil chamber with salt core conventionally near top land, close first, second annular groove, by constantly spraying the operating temperature that cold oil reduces all-aluminium piston head in oil pocket.
Prior art is prepared salt core with pure salt conventionally, in diel, adds 30 order～100 objects with the salt grain of corner angle, and consolidation under certain pressure utilizes mutually inlaying between salt grain corner angle to make the salt core preparing have certain intensity.Because just relying on the physical strengthening of mutually inlaying between salt grain corner angle, this method prepares salt core, therefore the salt core intensity making is lower, its stretching resistance is in 70N, although this salt core can meet the requirement of gravitational casting, but for low pressure casting and the casting of extrusion casint equal pressure, the intensity of this salt core is obviously inadequate.Therefore, the research for high strength salt core becomes the focus that people pay close attention to.
Publication number is that the Chinese patent of CN 101869963A discloses a kind of foundry water-soluble salt core, and the preparation method of this salt core for to dry sodium chloride, then by the Na of the sodium chloride of 55kg, 120mL at the temperature of 100 ℃
2siO
312H
2the dry talcum powder of O and 120g is put into mixer and is stirred, and treats above-mentioned sodium chloride, Na
2siO
312H
2after O and talcum powder stir, the mixture obtaining is put into metal die pressurization compacting, by the sample turning machine-shaping after compacting, by the sintering 10 hours at 680 ℃ of the sample after moulding, obtain salt core.Although this salt core prepared by prior art has higher intensity, the strength fluctuation of this salt core is larger, unstable properties.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of phosphate composite material and preparation method thereof and salt core, the salt core strength fluctuation of phosphate composite material material provided by the invention is little and intensity is high, stable performance.
The invention provides a kind of phosphate composite material, comprising:
Metal halide salt;
Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer;
The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.
Preferably, described Powdered phosphate is Zr (HPO
4)
2, Zr (H
2pO
4)
4, Al
2(HPO
4)
3, Al (H
2pO
4)
3and Mg
3(PO
4)
2in one or more.
Preferably, described powdery metal oxide is CuO, Al
2o
3with one or more in MgO.
Preferably, described metal halide salt is one or more in NaF, NaCl, KF and KCl.
Preferably, described Powdered phosphatic granularity >=325 order;
Granularity >=325 order of described powdery metal oxide.
The preparation method who the invention provides a kind of phosphate composite material, comprises the following steps:
A), Powdered phosphate, powdery metal oxide and metal halide salt are mixed, obtain mixed material, the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000;
B), described mixed material is suppressed, obtain the first intermediate product;
C), described the first intermediate product is cured, obtain the second intermediate product;
D), described the second intermediate product is carried out to sintering, obtain phosphate composite material.
Preferably, described Powdered phosphatic weight water content≤0.05%;
Weight water content≤0.05% of described powdery metal oxide;
Weight water content≤0.05% of described metal halide salt.
Preferably, described curing time >=1 hour.
Preferably, described steps d) be specially:
Heating rate with 9 ℃/min～12 ℃/min is warming up to the first temperature, and described the second intermediate product is carried out to sintering at the first temperature, obtains sintered product;
Described sintered product is cooled to the second temperature, obtains phosphate composite material.
The invention provides a kind of phosphate composite material, comprising: metal halide salt; Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer; The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.In the present invention, Powdered phosphate and powdery metal oxide can copolymerization obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, the phosphate composite material composition that the present invention is obtained is comparatively even, thereby make the strength fluctuation of phosphate composite material little, stable performance; And contain metal-oxygen key bridge in the phosphate-burning composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer, this metal-oxygen key bridge can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, and the phosphate composite material intensity that the present invention is obtained is higher.So the strength fluctuation of phosphate composite material provided by the invention is little and intensity is high, stable performance.Phosphate composite material provided by the invention can be used as salt core and uses, and the salt core strength fluctuation of phosphate composite material material provided by the invention is little and intensity is high, stable performance.
Experimental result shows, the stretching resistance of the salt core of phosphate composite material material provided by the invention is 0.1277KN～0.1369KN, and average tensile power is 0.13288KN, and the extreme difference value of stretching resistance is 0.0092KN.
The specific embodiment
The invention provides a kind of phosphate composite material, comprising:
Metal halide salt;
Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer;
The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.
In the present invention, Powdered phosphate and powdery metal oxide can copolymerization obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, the phosphate composite material composition that the present invention is obtained is comparatively even, thereby make the strength fluctuation of phosphate composite material little, stable performance; And contain metal-oxygen key bridge in the phosphate-burning composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer, this metal-oxygen key bridge can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, makes the intensity of the phosphate composite material that the present invention obtains higher.Therefore the strength fluctuation of phosphate composite material provided by the invention is little and intensity is high, stable performance, thus make that the salt core strength fluctuation of phosphate composite material material provided by the invention is little and intensity is high, stable performance.
Phosphate composite material provided by the invention comprises metal halide salt.In the present invention, described metal halide salt is the ionic compound that halogen and metallic element form, and can in water, dissolve.The present invention does not have special restriction to the kind of described metal halide salt, adopts metal halide salt well known to those skilled in the art.In the present invention, described metal halide salt is preferably one or more in NaF, NaCl, KF and KCl, more preferably one or both in NaCl and KCl; Most preferably be NaCl.The present invention does not have special restriction to the source of described metal halide salt, adopts the metal halide salt of mentioned kind well known to those skilled in the art, as bought and be obtained by market.
Phosphate composite material provided by the invention comprises phosphate-burning composition copolymer.In the present invention, described phosphate-burning composition copolymer is obtained by copolyreaction by Powdered phosphate and powdery metal oxide.In the present invention, described phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, makes the strength fluctuation of the phosphate composite material that the present invention obtains little, stable performance.In the present invention, metal-oxygen key bridge in described phosphate-burning composition copolymer can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, and the phosphate composite material intensity that the present invention is obtained is higher.
In the present invention, described Powdered phosphatic granularity preferably >=325 orders, more preferably 330 order～400 orders; Most preferably be 335 order～380 orders.The present invention does not have special restriction to described Powdered method for production of phosphate salt, adopts technical scheme well known to those skilled in the art, phosphate is prepared into Powdered.The present invention does not have special restriction to described Powdered phosphatic kind, adopts phosphate well known to those skilled in the art.In the present invention, described Powdered phosphate is preferably Zr (HPO
4)
2, Zr (H
2pO
4)
4, Al
2(HPO
4)
3, Al (H
2pO
4)
3and Mg
3(PO
4)
2in one or more; Zr (HPO more preferably
4)
2, Zr (H
2pO
4)
4and Al
2(HPO
4)
3and Al (H
2pO
4)
3in one or more; Most preferably be Al
2(HPO
4)
3and Al (H
2pO
4)
3in one or both.The present invention does not have special restriction to described Powdered phosphatic source, adopts the Powdered phosphate of mentioned kind well known to those skilled in the art, as bought and be obtained by market.
In the present invention, the granularity of described powdery metal oxide preferably >=325 orders, more preferably 330 order～400 orders; Most preferably be 335 order～380 orders.The present invention does not have special restriction to the preparation method of described powdery metal oxide, adopts technical scheme well known to those skilled in the art, metal oxide is prepared into Powdered.The present invention does not have special restriction to the kind of described powdery metal oxide, adopts metal oxide well known to those skilled in the art.In the present invention, described powdery metal oxide is preferably CuO, Al
2o
3with one or more in MgO; More preferably CuO and Al
2o
3in one or both; Most preferably be CuO.The present invention does not have special restriction to the source of described powdery metal oxide, adopt the powdery metal oxide of mentioned kind well known to those skilled in the art, can buy acquisition by market and also can adopt the method for preparing powdery metal oxide well known to those skilled in the art to prepare.
In the present invention, when the Powdered phosphate in phosphate composite material and powdery metal oxide content are too high, can reduce the water-soluble of phosphate composite material, be unfavorable for that phosphate composite material is as the use of salt core.In the present invention, the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000, be preferably (210～230): (160～170): 100000, more preferably (215～225): (163～167): 100000.
The preparation method who the invention provides a kind of phosphate composite material, comprises the following steps:
A), Powdered phosphate, powdery metal oxide and metal halide salt are mixed, obtain mixed material, the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000;
B), described mixed material is suppressed, obtain the first intermediate product;
C), described the first intermediate product is cured, obtain the second intermediate product;
D), described the second intermediate product is carried out to sintering, obtain phosphate composite material.
The present invention mixes Powdered phosphate, powdery metal oxide and metal halide salt, obtains mixed material, and the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.In the present invention, the kind of described Powdered phosphate, powdery metal oxide and metal halide salt and source are consistent with kind and the source of Powdered phosphate, powdery metal oxide and metal halide salt described in technique scheme, do not repeat them here.In the present invention, the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is consistent with the mass ratio of the Powdered phosphate described in technique scheme, powdery metal oxide and metal halide salt, does not repeat them here.In the present invention, described Powdered phosphate and powdery metal oxide are particulate material, can mix more equably with described metal halide salt, make the composition of the phosphate composite material that the present invention obtains even, stable performance.
In the present invention, described Powdered phosphate is binding agent, and described powdery metal oxide is curing agent; The too high meeting of water content of described metal halide salt, Powdered phosphate and powdery metal oxide causes Powdered phosphate and the too early bonding of powdery metal oxide, solidifies, and is unfavorable for the mixing of Powdered phosphate, powdery metal oxide and metal halide salt.In the present invention, the weight water content of described metal halide salt preferably≤0.05%, more preferably 0.01%～0.03%, most preferably be 0.02%; Described Powdered phosphatic weight water content preferably≤0.05%, more preferably 0.01%～0.03%, most preferably be 0.02%; The weight water content of described powdery metal oxide preferably≤0.05%, more preferably 0.01%～0.03%, most preferably be 0.02%.
The present invention preferably adopts the method for stirring that described Powdered phosphate, powdery metal oxide and metal halide salt are mixed, and obtains mixed material; More preferably described Powdered phosphate, powdery metal oxide and metal halide salt are stirred in mixer, obtain mixed material.In the present invention, the overlong time of described mixing, by causing the airborne steam of the too much absorption of metal halide salt, is unfavorable for the mixing of Powdered phosphate, powdery metal oxide and metal halide salt.In the present invention, the time of described mixing is preferably 13 minutes～and 17 minutes, more preferably 14 minutes～16 minutes, most preferably be 15 minutes.
Obtain after mixed material, the present invention suppresses described mixed material, obtains the first intermediate product.The present invention does not have special restriction to the method for described compacting, adopts the technical scheme of the compacting adopting in preparing salt core process well known to those skilled in the art.In the present invention, the time of described compacting is preferably 1 second～and 5 seconds, more preferably 2 seconds～4 seconds, most preferably be 3 seconds; The pressure of described compacting is preferably 130KN～170KN, and more preferably 140KN～160KN, most preferably is 145KN～155KN; The temperature of described compacting is preferably 15 ℃～40 ℃, more preferably 20 ℃～30 ℃, most preferably is 23 ℃～27 ℃.
After described mixed material is suppressed, the present invention preferably carries out machining by the compacting product obtaining, and obtains the first intermediate product.The present invention does not have special restriction to the method for described machining, adopts the Machining Technology scheme of using in preparing salt core process well known to those skilled in the art.In the present invention, described machining is preferably turning processing.The present invention does not have special restriction to the size of described machining, and those skilled in the art can prepare according to actual conditions the phosphate composite material of different size.In the present invention, the external diameter of described phosphate composite material is preferably Φ 80mm～Φ 120mm, and more preferably Φ 90mm～Φ 110mm, most preferably is Φ 100mm.
Obtain after the first intermediate product, the present invention is cured described the first intermediate product, obtains the second intermediate product.In the present invention, described metal halide salt can absorb airborne steam, thereby impel described Powdered phosphate and powdery metal oxide to carry out copolymerization and obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt uniformly, make the strength fluctuation of the phosphate composite material that the present invention obtains little, stable performance; And the structure of this phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, and the phosphate composite material intensity that the present invention is obtained is higher.
The present invention does not have special restriction to described curing method, by the outdoor placement of described the first intermediate product, utilize airborne steam to accelerate described Powdered phosphate and powdery metal oxide polymerization reaction take place, described the first intermediate product is solidified, therefore preparation method's curing process of phosphate composite material provided by the invention is simple, easy and simple to handle.In the present invention, the described curing time preferably >=1 hour, more preferably 5 hours～24 hours, most preferably be 8 hours～16 hours; Described curing temperature is preferably 15 ℃～35 ℃, more preferably 20 ℃～30 ℃, most preferably is 23 ℃～27 ℃.
Obtain after the second intermediate product, the present invention carries out sintering by described the second intermediate product, obtains phosphate composite material; Preferably the heating rate with 9 ℃/min～12 ℃/min is warming up to the first temperature, and described the second intermediate product is carried out to sintering at the first temperature, obtains sintered product; Described sintered product is cooled to the second temperature, obtains phosphate composite material.In the present invention, described the first temperature is preferably 630 ℃～670 ℃, more preferably 640 ℃～660 ℃, most preferably is 645 ℃～655 ℃.The present invention is preferably warming up to the first temperature with the heating rate of 9 ℃/min～12 ℃/min; More preferably the heating rate with 10 ℃/min～11 ℃/min is warming up to the first temperature; Most preferably the heating rate with 10.5 ℃/min is warming up to the first temperature.
Be warming up to after the first temperature, the present invention preferably carries out sintering by described the second intermediate product at the first temperature, obtains sintered product.In the present invention, the time of described sintering is preferably 1 hour～and 5 hours, more preferably 2 hours～4 hours, most preferably be 3 hours.The present invention does not have special restriction to the equipment of described sintering, adopts agglomerating plant well known to those skilled in the art; In the present invention, the equipment of described sintering is preferably sintering furnace, and the present invention is preferably placed on described the second intermediate product on sintering furnace liner plate, and described sintering furnace liner plate is sent in sintering furnace, close upper furnace door, set sintering temperature described the second intermediate product is carried out to sintering; More preferably adopt chassis to send in sintering furnace described sintering furnace liner plate described the second intermediate product is carried out to sintering.The present invention can carry out single sintering by described the second intermediate product, also a plurality of the second intermediate products can be carried out to sintering simultaneously.In the present invention, when a plurality of the second intermediate products being carried out to the while during sintering, preferably 4～8 the second intermediate products are stacked together and carry out sintering, more preferably 5～7 the second intermediate products are stacked together and carry out sintering, most preferably 6 the second intermediate products are stacked together and carry out sintering.In the present invention, described in, the second intermediate product of being stacked together spacing between often folded is preferably 3cm～5cm, 4cm more preferably.
Obtain after sintered product, the present invention is preferably cooled to the second temperature by described sintered product, obtains phosphate composite material.In the present invention, described cooling is preferably uniform decrease in temperature, and while making to lower the temperature, variations in temperature is slower, and after avoiding lowering the temperature, phosphate composite material distortion is serious.In the present invention, the method for described uniform decrease in temperature is preferably with stove cooling, and the present invention preferably stops, to described sintered product heating, opening fire door, makes furnace temperature be cooled to the second temperature, obtains phosphate composite material.In the present invention, described the second temperature is preferably 80 ℃～120 ℃, more preferably 90 ℃～110 ℃, most preferably is 95 ℃～105 ℃.
Under the phosphate composite material strength fluctuation that the present invention prepares and intensity high, stable performance, can be used as salt core and uses.
The invention provides a kind of salt core, the material of described salt core is phosphate composite material prepared by phosphate composite material described in technique scheme or the method described in technique scheme.The material of salt core provided by the invention is the phosphate composite material described in technique scheme, and salt core provided by the invention comprises: metal halide salt; Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer; The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.In the present invention, Powdered phosphate and powdery metal oxide can copolymerization obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, make salt core composition provided by the invention comparatively even, thereby make the strength fluctuation of salt core little, stable performance; And contain metal-oxygen key bridge in the phosphate-burning composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer, this metal-oxygen key bridge can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, makes salt core intensity provided by the invention higher.So the strength fluctuation of salt core provided by the invention is little and intensity is high, stable performance.
In the present invention, the preparation method of described salt core is consistent with the preparation method of phosphate composite material described in technique scheme, those skilled in the art can, according to the above-mentioned phosphate composite material that need to prepare difformity, size of actual conditions, use it as salt core.
Obtain after the salt core of above-mentioned phosphate composite material material, the present invention is preferably by standby after described salt core location, insulation.The present invention does not have special restriction to the method for described location, adopts well known to those skilled in the art by the technical scheme of salt core location.The present invention is preferably by the following method by described salt core location:
On described salt core, bore locating hole, then penetrate location steel nail in described locating hole.
The present invention does not have special restriction to the method for described brill locating hole, adopts technical scheme of boring locating hole on salt core well known to those skilled in the art, and the present invention preferably bores locating hole by described salt core on locating hole station.On described salt core, bore after locating hole, the present invention preferably penetrates location steel nail in described locating hole.The present invention does not have special restriction to described location steel nail, adopts location well known to those skilled in the art steel nail.
By behind described salt core location, the present invention is preferably by standby after the salt core insulation behind location; More preferably standby after the salt core behind location being incubated in Muffle furnace (Muffle furnace).In the present invention, the temperature of described insulation is preferably 400 ℃～450 ℃, more preferably 410 ℃～440 ℃, most preferably is 420 ℃～430 ℃; The time of described insulation is preferably 20min～40min, and more preferably 25min～35min, most preferably is 30min.
Salt core provided by the invention is adopted to the stretching resistance of testing salt core under the condition that CMT-7105 electronic universal tester is 0.5mm/min at operating rate.Test result shows, salt core stretching resistance provided by the invention is 0.1277KN～0.1369KN, and average tensile power is 0.13288KN, and the extreme difference value of stretching resistance is 0.0092KN.
The invention provides a kind of phosphate composite material, comprising: metal halide salt; Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer; The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.In the present invention, Powdered phosphate and powdery metal oxide can copolymerization obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, make the composition of the phosphate composite material that the present invention obtains comparatively even, thereby make the strength fluctuation of phosphate composite material little, stable performance; And contain metal-oxygen key bridge in the phosphate-burning composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer, this metal-oxygen key bridge can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, makes the intensity of the phosphate composite material that the present invention obtains higher.So phosphate composite material strength fluctuation provided by the invention is little and intensity is high, stable performance, phosphate composite material provided by the invention can be used as salt core and uses, and the salt core strength fluctuation of phosphate composite material material provided by the invention is little and intensity is high, stable performance.
In order further to understand the present invention; below in conjunction with embodiment, phosphate composite material provided by the invention and preparation method thereof and salt core are described in detail; but be to be understood that; these are described is in order to further illustrate the features and advantages of the present invention, and they can not be interpreted as to limiting the scope of the present invention.
Embodiment 1
Take the NaCl that 100kg weight water content is 0.05%, pour in mixer after being crossed 325 mesh sieves; By 200g, granularity, be the Powdered Al (H of 325 object again
2pO
4)
3with 150g, granularity be that the Powdered CuO of 325 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 20 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 15 ℃ in temperature by the first intermediate product obtained above is cured for 1 hour, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 3 hours, and heating rate is 10.5 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 100 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 1 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 400 ℃ after.
Under the condition that the salt core that the present invention obtains embodiment 1 is 0.5mm/min at operating rate, stretch, the stretching resistance of the salt core that test implementation example 1 obtains.The test result of the salt core stretching resistance that the embodiment of the present invention 1 obtains is as shown in table 1, the test result of the salt core stretching resistance that table 1 obtains for the embodiment of the present invention and comparative example.
Embodiment 2
Take the NaF that 100kg weight water content is 0.01%, pour in mixer after being crossed 325 mesh sieves; By 220g, granularity, be the Powdered Al (H of 330 object again
2pO
4)
3with 160g, granularity be the Powdered Al of 330 object
2o
3pour in mixer, stir premix 13 minutes, obtain mixed material.
Mixed material obtained above is suppressed 5 seconds under 15 ℃, the pressure of 130KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 20 ℃ in temperature by the first intermediate product obtained above is cured for 5 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 630 ℃, sintering time is 5 hours, and heating rate is 9 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 80 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that above-described embodiment 2 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 20min at 410 ℃ after.
The salt core that the present invention obtains embodiment 2 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 3
Take the KF that 100kg weight water content is 0.02%, pour in mixer after being crossed 350 mesh sieves; By 240g, granularity, be the Powdered Zr (HPO of 340 object again
4)
2with 180g, granularity be that the Powdered MgO of 325 object pours in mixer, stir premix 14 minutes, obtain mixed material.
Mixed material obtained above is suppressed 2 seconds under 23 ℃, the pressure of 140KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 23 ℃ in temperature by the first intermediate product obtained above is cured for 8 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 640 ℃, sintering time is 2 hours, and heating rate is 10 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 90 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 3 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 25min at 420 ℃ after.
The salt core that the present invention obtains embodiment 3 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 4
Take the KCl that 100kg weight water content is 0.03%, pour in mixer after being crossed 360 mesh sieves; By 230g, granularity, be the Powdered Zr (H of 400 object again
2pO
4)
4with 170g, granularity be that the Powdered CuO of 400 object pours in mixer, stir premix 17 minutes, obtain mixed material.
Mixed material obtained above is suppressed 4 seconds under 27 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 30 ℃ in temperature by the first intermediate product obtained above is cured for 16 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 660 ℃, sintering time is 4 hours, and heating rate is 11 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 110 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 4 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 35min at 430 ℃ after.
The salt core that the present invention obtains embodiment 4 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 5
Take the NaCl that 100kg weight water content is 0.02%, pour in mixer after being crossed 350 mesh sieves; By 240g, granularity, be the Powdered Mg of 400 object again
3(PO
4)
2with 180g, granularity be that the Powdered CuO of 325 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 30 ℃, the pressure of 160KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 35 ℃ in temperature by the first intermediate product obtained above is cured for 24 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 670 ℃, sintering time is 3 hours, and heating rate is 12 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 120 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 5 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 40min at 440 ℃ after.
The salt core that the present invention obtains embodiment 5 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 6
Take the NaCl that 100kg weight water content is 0.04%, pour in mixer after being crossed 325 mesh sieves; By 230g, granularity, be the Powdered Al (H of 325 object again
2pO
4)
3with 160g, granularity be that the Powdered CuO of 400 object pours in mixer, stir premix 14 minutes, obtain mixed material.
Mixed material obtained above is suppressed 4 seconds under 35 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 25 ℃ in temperature by the first intermediate product obtained above is cured for 18 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 4 hours, and heating rate is 10 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 100 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 6 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 450 ℃ after.
The salt core that the present invention obtains embodiment 6 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 7
Take the NaCl that 100kg weight water content is 0.01%, pour in mixer after being crossed 360 mesh sieves; By 210g, granularity, be the Powdered Al of 325 object again
2(HPO
4)
3with 170g, granularity be that the Powdered CuO of 325 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 40 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 25 ℃ in temperature by the first intermediate product obtained above is cured for 10 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 3 hours, and heating rate is 10 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 100 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 7 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 420 ℃ after.
The salt core that the present invention obtains embodiment 7 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 8
Take the NaCl that 100kg weight water content is 0.02%, pour in mixer after being crossed 340 mesh sieves; By 220g, granularity, be the Powdered Al (H of 340 object again
2pO
4)
3with 160g, granularity be that the Powdered CuO of 340 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 25 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 25 ℃ in temperature by the first intermediate product obtained above is cured for 5 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 3 hours, and heating rate is 10 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 100 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 8 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 420 ℃ after.
The salt core that the present invention obtains embodiment 8 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 9
Take the NaCl that 100kg weight water content is 0.05%, pour in mixer after being crossed 340 mesh sieves; By 200g, granularity, be the Powdered Al (H of 325 object again
2pO
4)
3with 150g, granularity be that the Powdered CuO of 350 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 25 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 25 ℃ in temperature by the first intermediate product obtained above is cured for 3 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 3 hours, and heating rate is 11 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 90 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 9 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 420 ℃ after.
The salt core that the present invention obtains embodiment 9 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 10
Take the NaCl that 100kg weight water content is 0.01%, pour in mixer after being crossed 325 mesh sieves; By 230g, granularity, be the Powdered Al (H of 340 object again
2pO
4)
3with 170g, granularity be that the Powdered CuO of 360 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 20 ℃, the pressure of 150KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 25 ℃ in temperature by the first intermediate product obtained above is cured for 1 hour, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 650 ℃, sintering time is 3 hours, and heating rate is 10.5 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 80 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 10 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 30min at 420 ℃ after.
The salt core that the present invention obtains embodiment 10 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 11
Take the KCl that 100kg weight water content is 0.02%, pour in mixer after being crossed 350 mesh sieves; By 240g, granularity, be the Powdered Mg of 300 object again
3(PO
4)
2with 180g, granularity be that the Powdered CuO of 325 object pours in mixer, stir premix 15 minutes, obtain mixed material.
Mixed material obtained above is suppressed 3 seconds under 30 ℃, the pressure of 160KN, obtained suppressing product; Described compacting product is carried out to turning processing, and obtaining external diameter is the first intermediate product of Φ 100.3mm.
The outdoor outdoor placement that is 30 ℃ in temperature by salt core blank obtained above is cured for 24 hours, obtains the second intermediate product.
The second intermediate product obtained above is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described the second intermediate product is carried out to sintering, obtain sintered product, setting sintering temperature is 670 ℃, sintering time is 3 hours, and heating rate is 12 ℃/min; Obtain after sintered product, come out of the stove after described sintered product is cooled to 120 ℃ with stove, obtain phosphate composite material.
The phosphate composite material that embodiment 11 is obtained, as salt core, bores locating hole by described salt core on locating hole station, then in described locating hole, penetrates location steel nail, and the salt core behind location is sent in Muffle furnace, standby be incubated 40min at 440 ℃ after.
The salt core that the present invention obtains embodiment 11 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Embodiment 12
Method according to preparation the first intermediate product described in embodiment 1 prepares 12 the first intermediate products.
The outdoor outdoor placement that is 15 ℃ in temperature by above-mentioned 12 the first intermediate products that prepare is cured for 1 hour, obtains 12 the second intermediate products.
12 the second intermediate products obtained above be take to 6 the second intermediate products to be stacked into 2 folded as one group, the distance that is 4cm according to spacing by the 2 folded intermediate products that obtain is placed on sintering furnace liner plate, starting chassis sends into sintering furnace liner plate in sintering furnace, close upper furnace door, set sintering parameter, described 12 the second intermediate products are carried out to sintering, obtain 12 sintered products, setting sintering temperature is 650 ℃, and sintering time is 3 hours, and heating rate is 10.5 ℃/min; Obtain after 12 sintered products, come out of the stove after described sintered product is cooled to 100 ℃ with stove, obtain 12 phosphate composite materials.
Using 12 phosphate composite materials that obtain as salt core, above-mentioned 12 salt cores are bored to locating hole respectively on locating hole station, then in the locating hole of each salt core, penetrate location steel nail, 12 salt cores behind location are sent in Muffle furnace, standby be incubated 30min at 400 ℃ after.
1 in 12 salt cores that the present invention obtains embodiment 12 is carried out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 1
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and talcum powder are first dried under the condition of 100 ℃, then by the Na of the NaCl of 55kg and 120mL
2siO
312H
2the talcum powder of O and 120g is put into mixer and is stirred; By described NaCl, Na
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 1 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1, the test result of the salt core stretching resistance that table 1 obtains for the embodiment of the present invention and comparative example.
Comparative example 2
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
By CaCl
2first under the condition of 100 ℃, dry with talcum powder, then by the CaCl of 55kg
2(NH with 150mL
4)
2siO
312H
2the talcum powder of O and 130g is put into mixer and is stirred; By described CaCl
2, (NH
4)
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 2 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 3
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
KCl and talcum powder are first dried under the condition of 100 ℃, then by the K of the KCl of 55kg and 150mL
2siO
312H
2the talcum powder of O and 140g is put into mixer and is stirred; By described KCl, K
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 3 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 4
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
By MgCl
2first under the condition of 100 ℃, dry with talcum powder, then by the MgCl of 50kg
2na with 150mL
2siO
312H
2the talcum powder of O and 150g is put into mixer and is stirred; By described MgCl
2, Na
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 4 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 5
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and talcum powder are first dried under the condition of 100 ℃, then by the Na of the NaCl of 50kg and 180mL
2siO
312H
2the talcum powder of O and 180g is put into mixer and is stirred; By described NaCl, Na
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 5 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 6
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and kaolinite are first dried under the condition of 100 ℃, then by the Na of the NaCl of 50kg and 180mL
2siO
312H
2the kaolinite of O and 200g is put into mixer and is stirred; By described NaCl, Na
2siO
312H
2o and kaolinite mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 6 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 7
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and kaolinite are first dried under the condition of 100 ℃, then by the K of the NaCl of 50kg and 200mL
2siO
312H
2the kaolinite of O and 200g is put into mixer and is stirred; By described NaCl, K
2siO
312H
2o and kaolinite mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 7 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 8
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and kaolinite are first dried under the condition of 100 ℃, then by the Na of the NaCl of 48kg and 200mL
2siO
312H
2the kaolinite of O and 220g is put into mixer and is stirred; By described NaCl, Na
2siO
312H
2after O and kaolinite mix, the mixture obtaining is put at 20 ℃ to metal die pressurization compacting, obtained salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 8 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 9
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
KCl and talcum powder are first dried under the condition of 100 ℃, then by the Na of the KCl of 55kg and 150mL
2siO
312H
2the talcum powder of O and 140g is put into mixer and is stirred; By described KCl, Na
2siO
312H
2o and talcum powder mix, and the mix products obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 9 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 10
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
By MgCl
2first under the condition of 100 ℃, dry with talcum powder, then by the MgCl of 50kg
2(NH with 150mL
4)
2siO
312H
2the talcum powder of O and 150g is put into mixer and is stirred; By described MgCl
2, (NH
4)
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 10 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 11
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and talcum powder are first dried under the condition of 100 ℃, then by the K of the NaCl of 50kg and 180mL
2siO
312H
2the talcum powder of O and 180g is put into mixer and is stirred; By described NaCl, K
2siO
312H
2o and talcum powder mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 11 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
Comparative example 12
The disclosed method of Chinese patent that is 201010218306.6 according to application number prepares salt core, and concrete grammar is:
NaCl and kaolinite are first dried under the condition of 100 ℃, then by (the NH of the NaCl of 50kg and 180mL
4)
2siO
312H
2the kaolinite of O and 200g is put into mixer and is stirred; By described NaCl, (NH
4)
2siO
312H
2o and kaolinite mix, and the mixture obtaining are put at 20 ℃ to metal die pressurization compacting, obtain salt core blank; By after the salt core blank turning machine-shaping obtaining, sintering in sintering furnace, obtains salt core again, and setting sintering temperature is 680 ℃, and sintering time is 10 hours.
The salt core that the present invention obtains comparative example 12 carries out stretching resistance test according to the method described in embodiment 1, and test result is as shown in table 1.
The test result of the salt core stretching resistance that table 1 embodiment of the present invention and comparative example obtain
| Embodiment | Stretching resistance (KN) | Comparative example | Stretching resistance (KN) |
| 1 | 0.1325 | 1 | 0.0966 |
| 2 | 0.1277 | 2 | 0.0913 |
| 3 | 0.1369 | 3 | 0.1222 |
| 4 | 0.1323 | 4 | 0.0731 |
| 5 | 0.1342 | 5 | 0.1131 |
| 6 | 0.1286 | 6 | 0.0838 |
| 7 | 0.1334 | 7 | 0.0861 |
| 8 | 0.1357 | 8 | 0.0873 |
| 9 | 0.1336 | 9 | 0.1081 |
| 10 | 0.1289 | 10 | 0.1216 |
| 11 | 0.1341 | 11 | 0.1113 |
| 12 | 0.1366 | 12 | 0.1206 |
| Average | 0.13288 | Average | 0.10126 |
| Extreme difference value | 0.0092 | Extreme difference value | 0.0485 |
As can be seen from Table 1, the stretching resistance of salt core provided by the invention is 0.1277KN～0.1369KN, and average tensile power is 0.13288KN, and the extreme difference value of stretching resistance is 0.0092KN.Compared with prior art, salt core strength fluctuation provided by the invention is little and intensity is high, stable performance.
The invention provides a kind of phosphate composite material, comprising: metal halide salt; Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer; The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.In the present invention, Powdered phosphate and powdery metal oxide can copolymerization obtain phosphate-burning composition copolymer, this phosphate-burning composition copolymer can be dispersed in metal halide salt more uniformly, the phosphate composite material composition that the present invention is obtained is comparatively even, thereby make the strength fluctuation of phosphate composite material little, stable performance; And contain metal-oxygen key bridge in the phosphate-burning composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer, this metal-oxygen key bridge can cross key and, also can longitudinal key and, the structure that makes phosphate-burning composition copolymer is the network structure with large surface area, this network structure is adhesion metal halide salt effectively, and the phosphate composite material intensity that the present invention is obtained is higher.So phosphate composite material strength fluctuation provided by the invention is little and intensity is high, stable performance, phosphate composite material provided by the invention can be used as salt core and uses, and the salt core strength fluctuation of phosphate composite material material provided by the invention is little and intensity is high, stable performance.
The explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.To the multiple modification of these embodiment, be apparent for those skilled in the art, General Principle as defined herein can realize in other embodiments in the situation that not departing from the spirit or scope of the present invention.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a phosphate composite material, comprising:
Metal halide salt;
Phosphate-burning the composition copolymer being obtained by Powdered phosphate and powdery metal oxide copolymer;
The mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000.
2. phosphate composite material according to claim 1, is characterized in that, described Powdered phosphate is Zr (HPO
4)
2, Zr (H
2pO
4)
4, Al
2(HPO
4)
3, Al (H
2pO
4)
3and Mg
3(PO
4)
2in one or more.
3. phosphate composite material according to claim 1, is characterized in that, described powdery metal oxide is CuO, Al
2o
3with one or more in MgO.
4. phosphate composite material according to claim 1, is characterized in that, described metal halide salt is one or more in NaF, NaCl, KF and KCl.
5. phosphate composite material according to claim 1, is characterized in that, described Powdered phosphatic granularity >=325 order;
Granularity >=325 order of described powdery metal oxide.
6. a preparation method for phosphate composite material, comprises the following steps:
A), Powdered phosphate, powdery metal oxide and metal halide salt are mixed, obtain mixed material, the mass ratio of described Powdered phosphate, powdery metal oxide and metal halide salt is (200～240): (150～180): 100000;
B), described mixed material is suppressed, obtain the first intermediate product;
C), described the first intermediate product is cured, obtain the second intermediate product;
D), described the second intermediate product is carried out to sintering, obtain phosphate composite material.
7. method according to claim 6, is characterized in that, described Powdered phosphatic weight water content≤0.05%;
Weight water content≤0.05% of described powdery metal oxide;
Weight water content≤0.05% of described metal halide salt.
8. method according to claim 6, is characterized in that, described curing time >=1 hour.
9. method according to claim 6, is characterized in that, described steps d) be specially:
Heating rate with 9 ℃/min～12 ℃/min is warming up to the first temperature, and described the second intermediate product is carried out to sintering at the first temperature, obtains sintered product;
Described sintered product is cooled to the second temperature, obtains phosphate composite material.
10. a salt core, the material of described salt core is the phosphate composite material that in claim 1～5, in the phosphate composite material described in any one or claim 6～9 prepared by the method described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007729.1A CN103722121B (en) | 2014-01-08 | 2014-01-08 | A kind of phosphate composite material and preparation method thereof and salt core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007729.1A CN103722121B (en) | 2014-01-08 | 2014-01-08 | A kind of phosphate composite material and preparation method thereof and salt core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103722121A true CN103722121A (en) | 2014-04-16 |
| CN103722121B CN103722121B (en) | 2016-06-29 |
Family
ID=50446550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007729.1A Active CN103722121B (en) | 2014-01-08 | 2014-01-08 | A kind of phosphate composite material and preparation method thereof and salt core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103722121B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399865A (en) * | 2014-12-01 | 2015-03-11 | 湖南江滨机器（集团）有限责任公司 | Water-soluble graphite composited salt core material, graphite composited salt core and preparation method thereof |
| CN107812893A (en) * | 2017-10-18 | 2018-03-20 | 张国栋 | One kind casting cast salt core and preparation method thereof |
| CN109153068A (en) * | 2016-05-31 | 2019-01-04 | 株式会社电装 | Casting type core and its manufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394706A (en) * | 2002-08-02 | 2003-02-05 | 四川大学 | Core material for making core of pouring forming process and method for making core by using said core material |
| CN101391280A (en) * | 2007-09-18 | 2009-03-25 | 山东滨州渤海活塞股份有限公司 | Special-shaped salt core for press casting |
| CN101417315A (en) * | 2007-10-24 | 2009-04-29 | 大连核心铸造技术工程研究所 | Phosphate binder for casting |
| CN102085561A (en) * | 2009-12-04 | 2011-06-08 | 湖北工业大学 | Composite curing agent for phosphate casting binder and preparation method of composite curing agent |
| CN102695572A (en) * | 2009-11-06 | 2012-09-26 | 埃米尔·米勒有限责任公司 | Salt-based cores, method for the production thereof and use thereof |
| WO2013058152A1 (en) * | 2011-10-19 | 2013-04-25 | スズキ株式会社 | Casting core, method for producing same, and method for casting using said core |
-
2014
- 2014-01-08 CN CN201410007729.1A patent/CN103722121B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394706A (en) * | 2002-08-02 | 2003-02-05 | 四川大学 | Core material for making core of pouring forming process and method for making core by using said core material |
| CN101391280A (en) * | 2007-09-18 | 2009-03-25 | 山东滨州渤海活塞股份有限公司 | Special-shaped salt core for press casting |
| CN101417315A (en) * | 2007-10-24 | 2009-04-29 | 大连核心铸造技术工程研究所 | Phosphate binder for casting |
| CN102695572A (en) * | 2009-11-06 | 2012-09-26 | 埃米尔·米勒有限责任公司 | Salt-based cores, method for the production thereof and use thereof |
| CN102085561A (en) * | 2009-12-04 | 2011-06-08 | 湖北工业大学 | Composite curing agent for phosphate casting binder and preparation method of composite curing agent |
| WO2013058152A1 (en) * | 2011-10-19 | 2013-04-25 | スズキ株式会社 | Casting core, method for producing same, and method for casting using said core |
Non-Patent Citations (1)
| Title |
|---|
| 云南大学化学系化学研究室无机粘接剂昆明课题组: "氧化铜-磷酸盐无机粘接剂粘接机理的探讨", 《云南大学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399865A (en) * | 2014-12-01 | 2015-03-11 | 湖南江滨机器（集团）有限责任公司 | Water-soluble graphite composited salt core material, graphite composited salt core and preparation method thereof |
| CN104399865B (en) * | 2014-12-01 | 2016-08-24 | 湖南江滨机器（集团）有限责任公司 | A kind of water-soluble graphite complex salt core material, graphite complex salt core and preparation method thereof |
| CN109153068A (en) * | 2016-05-31 | 2019-01-04 | 株式会社电装 | Casting type core and its manufacturing method |
| CN107812893A (en) * | 2017-10-18 | 2018-03-20 | 张国栋 | One kind casting cast salt core and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103722121B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105418149B (en) | A kind of double-deck regrown material of stone material surface bee-hole | |
| CN104788121A (en) | Mullite lightweight refractory material and preparation method thereof | |
| CN106542843B (en) | A method of light heat-insulation wall material is prepared using solid waste | |
| CN104446628A (en) | Method for preparing light thermal-insulating wall material by virtue of coal gangue | |
| CN102786316B (en) | Manufacturing method of recycled foam material using granite powder as raw material | |
| CN103722121B (en) | A kind of phosphate composite material and preparation method thereof and salt core | |
| CN104478337B (en) | A kind of foamed aluminium material | |
| CN103011882A (en) | Inorganic heat-insulating material with three-level hole structure and preparation method of inorganic heat-insulating material | |
| CN107417185A (en) | A kind of novel environment-friendly phase-changing energy-storing brick and preparation method thereof | |
| CN104402466B (en) | There is porous corundum aggregate of nucleocapsid structure and preparation method thereof | |
| CN104556954A (en) | Magnesium phosphate cement-base porous material and preparation method thereof | |
| CN103706757A (en) | Magnesium alloy evaporative pattern casting coating and preparation method thereof | |
| CN106587937A (en) | High-strength carbon fiber based composite ceramic material and preparation method thereof | |
| CN104399865A (en) | Water-soluble graphite composited salt core material, graphite composited salt core and preparation method thereof | |
| CN103172253B (en) | A kind of method of utilizing the spontaneous brewed standby froth inorganic stock of gangue cenosphere | |
| CN103740049A (en) | Composite heat insulation plate | |
| CN103739243A (en) | Wall heat-insulating heat-preservation material | |
| CN103898348B (en) | A kind of preparation method of foamed aluminium material | |
| CN105478655A (en) | Knar clay moulding sand prevented from adhering to casting and preparation method of knar clay moulding sand | |
| CN105622158B (en) | A kind of three layers of regrown material of crystallite face bee-hole | |
| CN107552797B (en) | A method of foam metal is prepared using freezing drawing process | |
| CN107098666A (en) | A kind of insulation material and preparation method thereof | |
| CN106478130A (en) | A kind of fire prevention, heat-preserving wall section bar and preparation method thereof | |
| CN104446459A (en) | Preparation method of zirconium oxide hollow sphere heat-insulating product for tungsten-molybdenum sintering medium-frequency furnace | |
| CN109133862A (en) | Utilize the porous thermal insulating ornament materials and preparation method thereof of iron tailings preparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |