CN103664127A - Wave-absorbing precious stone capable of decaying and absorbing electromagnetic waves and manufacturing method of stone - Google Patents

Wave-absorbing precious stone capable of decaying and absorbing electromagnetic waves and manufacturing method of stone Download PDF

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CN103664127A
CN103664127A CN201210325233.XA CN201210325233A CN103664127A CN 103664127 A CN103664127 A CN 103664127A CN 201210325233 A CN201210325233 A CN 201210325233A CN 103664127 A CN103664127 A CN 103664127A
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weight part
jewel
suction ripple
weight
absorbing
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CN103664127B (en
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刘民宪
曲长云
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SHENZHEN SHENGSCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
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SHENZHEN SHENGSCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
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Abstract

The invention relates to a wave-absorbing precious stone capable of decaying and absorbing electromagnetic waves and a manufacturing method of the stone. The wave-absorbing precious stone comprises the following components in parts by weight: 60-70 parts of iron trioxide, 5-15 parts of nickel protoxide, 16-24 parts of zinc oxide, 3-6.8 parts of copper oxide, 0.1-0.5 part of bismuth trioxide, 0.1-0.3 part of vanadium pentoxide, 0.1-0.2 part of niobium pentoxide and 0.1-0.5 part of cobaltic oxide. The wave-absorbing precious stone disclosed by the invention has strong decaying-absorbing capacity in range of (-)5dB-(-)18dB for electromagnetic waves within a frequency range of 30 MHz-3GHz (two deca-frequency interval widths), can be independently processed into a product, also can be matched with other materials for being embedded on surfaces of articles of everyday use, crafts, artworks, watches, belts, and the like, or made into exquisite jewels, not only can be used for local radiation protection of human body, but also can be used for increasing aesthetic perception for life of people, and is perfect combination of modern science and art.

Description

Can attenuation and absorption electromagnetic suction ripple jewel and manufacture method
Technical field
Originally the present invention relates to inhale ripple jewel, more particularly, relate to a kind of energy attenuation and absorption electromagnetic suction ripple jewel and manufacture method.
Background technology
Along with scientific and technological development, the progress of society, all there is electromagnetic radiation pollution in electric equipment products and the equipment of all daily family expenses, office use, the pollution that these electromagnetic radiation produce live and work environment mainly, within 30MHz~3GHz, produces potential hazard to human body.Yet, there are no both protecting for human body radiation, can make exquisite jewellery again in the market, for people's life increases the articles for use of aesthetic feeling.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of energy attenuation and absorption electromagnetic suction ripple jewel and manufacture method.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of suction ripple diamond material, it comprises following component and proportioning: the nickel protoxide of the ferric oxide of 60 ~ 70 weight parts, 5 ~ 15 weight parts, the zinc oxide of 16 ~ 24 weight parts, the cupric oxide of 3 ~ 6.8 weight parts, the Vanadium Pentoxide in FLAKES of the bismuthous oxide bismuth trioxide of 0.1 ~ 0.5 weight part, 0.1 ~ 0.3 weight part, the cobalt sesquioxide of the Niobium Pentxoxide of 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part.
According to another aspect of the present invention, provide a kind of manufacture method of inhaling ripple diamond material, it comprises the following steps:
A1: by the ferric oxide of 60 ~ 70 weight parts, the nickel protoxide of 5 ~ 15 weight parts, the zinc oxide of 16 ~ 24 weight parts, the cupric oxide of 3 ~ 6.8 weight parts, the bismuthous oxide bismuth trioxide of 0.1 ~ 0.5 weight part, the Vanadium Pentoxide in FLAKES of 0.1 ~ 0.3 weight part, it is that 9% model is the polyvinyl alcohol of 24-28 that the cobalt sesquioxide of the Niobium Pentxoxide of 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part adds the main concentration by 1 weight part, the subsidiary material that the defoamer of dispersant A-15 of 0.8 weight part and 0.005 weight part forms are to obtain mixing material,
A2: by grinding, described mixing material is evenly mixed in sand mill, wherein, the weight ratio of mixing material and abrading-ball and water is 1 ︰ 8 ~ 10 ︰ 1 ~ 1.5;
A3: the mixing material after mixing is sprayed dry;
A4: be under the condition of 800 ~ 930 ℃ in temperature, the dried mixing material of spraying is by rotary kiln pre-burning 30 ~ 45 minutes, to obtain described suction ripple diamond material.
According to a further aspect of the invention, provide a kind of suction ripple jewel, it uses described suction ripple diamond material to make.
According to a further aspect of the invention, provide a kind of manufacture method of inhaling ripple jewel, it is characterized in that, comprise the following steps:
B1: described suction ripple diamond material is pulverized to granulation, take and obtain the particulate material that size is 0.1 ~ 0.3% as 0.1 ~ 0.5mm and water content;
B2: described particulate material is carried out to forming processes, take and obtain density as 3.2 ~ 3.4 grams/cm 3green compact;
B3: in temperature, be under the condition of 1000 ~ 1180 ℃, by described green sintering 4 hours to obtain the suction ripple jewel of predetermined shape and size.
B4: by one or more in the following, described suction ripple jewel is carried out to precision work: cutting, engraving, boring, grinding and buffing etc. and the same or analogous working method of artificial gem-jade.
In method of the present invention, via accurately machined suction ripple jewel profile, be that many cut surfaces or arc surface and its outward appearance are sparkling and crystal-clear smooth shiny black or color bright.
In method of the present invention, described step B1 comprises the following steps:
B11: described suction ripple diamond material is ground, take and obtain particle diameter as the pulverised material of 0.7 ~ 0.8 μ m;
B12: the ratio that is 1 ~ 1.2% in solid content, the concentration that adds 1 weight part in pulverised material is that 9% model is the polyvinyl alcohol of 24-28, by sponging granulator, carries out granulation,
Figure BDA00002103846100021
obtaining size is the described particulate material that 0.1 ~ 0.5mm and water content are 0.1 ~ 0.3%.
In method of the present invention, in described step B11, by sand mill or vibromill, grind, wherein, the weight ratio of described suction ripple diamond material and water is 1 ︰ 0.5 ~ 0.7.
In method of the present invention, in described step B2, described particulate material is packed in blank mould, and use powder shaping press to make described green compact.
In method of the present invention, in described step B3, in tunnel furnace, described green compact are carried out to sintering.
Implement energy attenuation and absorption electromagnetic suction ripple jewel of the present invention and manufacture method, there is following beneficial effect: this suction ripple jewel has good decay, receptivity to the hertzian wave of 30MHz~3GHz frequency range, and its scope is at-5~-18dB.In addition, also there is the spinel microcosmic crystal phase structure similar to natural gemstone, 6~8.5 grades of hardness, density is up to 5.8g/cm 3, compact structure, matter are hard, and outward appearance is sparkling and crystal-clear shiny black, is smooth to the touch salubrious; Nontoxic, wear-resisting, anticorrosive, the working method of applicable gem-jade, can process separately or coordinate with other materials, be embedded among daily necessities or make exquisite jewellery, both can be used for body local radioprotective, the life that also can be people increases aesthetic feeling, is modern science and technology and artistic perfect adaptation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the decoration with suction ripple jewel of first embodiment of the invention;
Fig. 2 is the structural representation of the decoration with suction ripple jewel of second embodiment of the invention;
Fig. 3 is the structural representation of the decoration with suction ripple jewel of third embodiment of the invention;
Fig. 4 is the structural representation of the decoration with suction ripple jewel of fourth embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Suction ripple diamond material of the present invention mainly comprises following component and proportioning: the nickel protoxide of the ferric oxide of 60 ~ 70 weight parts, 5 ~ 15 weight parts, the zinc oxide of 16 ~ 24 weight parts, the cupric oxide of 3 ~ 6.8 weight parts, the Vanadium Pentoxide in FLAKES of the bismuthous oxide bismuth trioxide of 0.1 ~ 0.5 weight part, 0.1 ~ 0.3 weight part, the cobalt sesquioxide of the Niobium Pentxoxide of 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part.Understandable, in concrete use procedure, also can add flexibly other micro-oxide compound according to demand.In addition, can make and inhale ripple jewel by above-mentioned suction ripple diamond material.
Wherein, ferric oxide adopts RUTHNER technique to make, and it contains 0.1 ~ 0.3% chlorine root.This material, when pre-sinter process, has Micro Amounts of Chlorine root not volatilize, and generate zinc chloride, and the volatilization temperature of zinc chloride is at 500 ℃ ~ 750 ℃ with the zinc oxide in formula.When this sintering temperature section, zinc chloride volatilization forms smog, through special process, processes, and makes part be attached to the effect that fusing assistant is played on blank surface, makes hard mass extexine (0.1 ~ 0.3mm) crystal grain increase 20 ~ 25 μ m rapidly.Zinc chloride gas cannot enter blank inside.Micro-Vanadium Pentoxide in FLAKES in blank, Niobium Pentxoxide still play the effect that suppresses grain growth, and bismuthous oxide bismuth trioxide plays reduction sintering temperature and grain refining, acts on uniformly, and the grain-size of blank inside is 3 ~ 5 μ m.Cobalt sesquioxide plays and regulates the coercive force of material and the effect of magnetocrystalline anisotropy, makes material have larger decay absorptive character and wider decay to absorb frequency range to hertzian wave.
This surface microstructure of inhaling ripple jewel is large, is conducive to appearance after sanding and polishing, obtains the effect of single crystal, shiny black reflective sparkling and crystal-clear, has special aesthetic feeling; And inner grain refining, evenly, fine and close, void content is little, make to inhale ripple jewel and there is good physical property: the highest 6g/cm nearly of density 3, mohs hardness reaches as high as 8.5 grades, and physical strength can be improved greatly, is conducive to precision work.
The manufacture method that this inhales ripple diamond material, mainly comprises the following steps:
A1: by the cobalt sesquioxide of the Niobium Pentxoxide of the Vanadium Pentoxide in FLAKES of the bismuthous oxide bismuth trioxide of the cupric oxide of the zinc oxide of the nickel protoxide of the ferric oxide of 60 ~ 70 weight parts, 5 ~ 15 weight parts, 16 ~ 24 weight parts, 3 ~ 6.8 weight parts, 0.1 ~ 0.5 weight part, 0.1 ~ 0.3 weight part, 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part add main 1 weight part concentration be 9% model be the polyvinyl alcohol of 24-28, the dispersant A-15(of 0.8 weight part is preferred, adopt n-Octanol) and the subsidiary material of the defoamer formation of 0.005 weight part to obtain mixing material;
A2: by grinding, described mixing material is evenly mixed in sand mill, wherein, the weight ratio of mixing material and abrading-ball and water is 1 ︰ 8 ~ 10 ︰ 1 ~ 1.5, and milling time is 45-55 minute.
A3: the mixing material after mixing is sprayed dry, drying plant is spray-drier, the powder that dry rear formation has certain fluidity is so that pre-burning.
A4: be under the condition of 800 ~ 930 ℃ in temperature, the dried mixing material of spraying is by rotary kiln pre-burning 30 ~ 45 minutes, to obtain inhaling ripple diamond material.
Obtain, after this suction ripple diamond material, can using this material to inhale the making of ripple jewel, its making method comprises the following steps:
B1: suction ripple diamond material is pulverized to granulation, take and obtain the particulate material that size is 0.1 ~ 0.3% as 0.1 ~ 0.5mm and water content; Can be B11 particularly: suction ripple diamond material is ground by sand mill or vibromill, take and obtain particle diameter as the pulverised material of 0.7 ~ 0.8 μ m; Wherein, the weight ratio of described suction ripple diamond material and water is 1 ︰ 0.5 ~ 0.7.Then B12: the ratio that is 1 ~ 1.2% in solid content; the concentration that adds 1 weight part in pulverised material is that 9% model is the polyvinyl alcohol of 24-28; by sponging granulator, carry out granulation; the particulate material of (preferred, size scope is 0.1 ~ 0.5mm) and predetermined moisture content scope obtaining thering is predetermined particle diameter magnitude range.
B2: particulate material is carried out to forming processes, take and obtain density as 3.2 ~ 3.4 grams/cm 3green compact, particularly, can be that this particulate material is packed in blank mould, and use powder shaping press to make green compact.
B3: in temperature, be under the condition of 1000 ~ 1180 ℃, in tunnel furnace by green sintering 4 hours to obtain the suction ripple jewel of predetermined shape and size.In addition, the product after sintering is worked into the thickness of standard, on vector network analysis instrument, with the test of microstrip line method, checks it to electromagnetic decay receptivity.
B4: by one or more in the following, described hard mass is carried out to precision work: cutting, engraving, boring, grinding and buffing etc. and the same or analogous working method of artificial gem-jade.Via the profile of accurately machined suction ripple jewel, be that many cut surfaces or arc surface and its outward appearance are sparkling and crystal-clear smooth shiny black or color bright.In addition, can with the material-mix such as gold, diamond, silver, jade, jewel, crystal, pearl, stainless steel, titanium alloy, pottery, be embedded on daily necessities or make exquisite jewellery, both having can be used for the preventing local radiation of human body, also can be daily life and increase aesthetic feeling.
In a preferred embodiment, by the ferric oxide of 65 weight parts, the nickel protoxide of 13 weight parts, the zinc oxide of 19 weight parts, the cupric oxide of 3 weight parts, by the bismuthous oxide bismuth trioxide of 0.25 weight part, the Vanadium Pentoxide in FLAKES of 0.15 weight part, the Niobium Pentxoxide of 0.1 weight part, the cobalt sesquioxide of 0.25 weight part, adding is mainly 24-28 by model, and the polyvinyl alcohol that concentration is 9%, in the subsidiary material that the dispersion agent of 0.8 weight part that model is A-15 and the defoamer of 0.005 weight part form.Above-mentioned raw materials is put into sand mill and mix, the weight ratio of mixed slurry and abrading-ball and water is 1 ︰ 10 ︰ 1.5, mixing time 50 minutes.
With spray-drier, the slurry mixing is carried out to drying treatment, by the process specifications of spray-drier used, undertaken.According to the weight adjustable spraying Drying Technology Parameter of compound: 450 ℃ ~ 500 ℃ of inlet temperatures, 90 ℃ ~ 120 ℃ of temperature outs, the slurry mixing after sand milling is squeezed into spraying gun through high-pressure pump, atomization by force, be atomized in 500 ℃ of air of high temperature, the powder that dry rear formation has certain fluidity is so that pre-burning.
Dried powder is put into external-heating rotary kiln and carry out pre-burning, by the operation instructions of rotary kiln, undertaken, 850 ℃ of temperature, according to the weight of powder after dry, regulate the rotating speed of rotary kiln cylinder: 3 ~ 6 revs/min, the inclination angle of adjusting cylinder: 7 ~ 9 °, 35 minutes pre-burning time.
Material after pre-burning is put into sand mill to be pulverized, material is 1 ︰ 0.65 with the ratio of water, the Vanadium Pentoxide in FLAKES that adds 0.15 weight part, the Niobium Pentxoxide of 0.1 weight part, the dispersion agent of 0.8 weight part, the defoamer of 0.005 weight part, after pulverizing, particle diameter is 0.75 μ m, then adding model is 24-28, the polyvinyl alcohol of 1 weight part that concentration is 9%, high-speed stirring 10 minutes.
Material after pulverizing is put into sponging granulator granulation, by the process specifications of sponging granulator, undertaken.According to weight of material, the parameters such as suitable unit of adjustment time output, spray angle, slip spraying pressure, loose density and powder moisture content.Final requirement is loose density 2.3g/cm 3, moisture content 0.3%, the particle of particle diameter 0.1 ~ 0.4mm accounts for more than 95%.
Made pellet is packed into and inhales ripple jewel blank mould, use powder shaping press to make green compact and prepare sintering.Green density 3.2+0.2 gram/cm 3.
Blank is sintering in tunnel kiln, and 1180 ℃ of temperature are incubated 4 hours, finally make the suction ripple jewel of regulation shape and size.
Product after sintering is worked into and is applicable to the thickness that testing tool requires, on vector network analyzer, with the test of microstrip line method, check it to electromagnetic decay receptivity.Requirement has good decay receptivity to the hertzian wave of 30MHz~3GHz frequency range, and its scope is at-5~-18dB.Table 1 is suction ripple jewel according to the embodiment of the present invention electromagnetic maximum attenuation absorption loss to 30MHz~3GHz frequency range, and as can be seen from Table 1, its maximum attenuation absorption loss is all within the scope of-5~-18dB.In addition, table 2 is according to the test value of the mohs hardness of the suction ripple jewel of the embodiment of the present invention, from the data of table 2, can find out, this mohs hardness of inhaling ripple jewel, with quite quartzy, even surpasses quartzy hardness (for example sample 1).
Figure BDA00002103846100071
Table 1
Table 2
With working method and the tool equipment of artificial gem-jade, to inhaling ripple jewel, carry out precision work, cut, carve, hole, polishing, sandblast or polishing, form jewel profile and the sparkling and crystal-clear smooth shiny black outward appearance of many cut surfaces or arc surface, separately or with the material-mix such as gold, diamond, silver, jade, jewel, crystal, pearl, stainless steel, titanium alloy, pottery, be embedded on daily necessities or make exquisite jewellery.
This suction ripple jewel has similar spinel microcosmic crystal phase structure to natural gemstone.Modern various electric equipment productss enter rapidly individual and household consumption field, and microwave frequency band has even been arrived in the electromagnetic radiation of these products from low frequency to high frequency, and people worry that potential Electromagnetic Radiation on Environment and human body produce pollution and harm day by day.Suction ripple jewel of the present invention, can process separately and independently make product, or with the material-mix such as gold, diamond, silver, jade, jewel, crystal, pearl, stainless steel, titanium alloy, pottery, be embedded in the surface of daily necessities, artwork, artwork, wrist-watch, belt etc., or make exquisite jewellery, both can be used for body local radioprotective, and also can be daily life and increase aesthetic feeling.
As Fig. 1 ~ 4 are depicted as the present invention with the decoration of inhaling ripple jewel, it mainly comprises decoration main body, this decoration main body is as main load bearing component, can carry out the shape of self and the change of structure, and for other decorative element is installed, in decoration main body, be removably provided with and inhale ripple jewel, thereby inhale combination structurally of ripple jewel and decoration main body and assembled by this, make this decoration not only there is the function of decorative appearance, can also absorb the electromagnetic radiation that various electric equipment products work produces.
In the first embodiment as shown in Figure 1, this decoration main body is watch chain; This watch chain comprises left side limit contiguous block assembly 13 and right edge contiguous block assembly 12, and the differentiation for left side and right side is to divide with the visual angle of Fig. 1 in this embodiment; On 12 corresponding of limit, left side contiguous block assembly 13 and right edge contiguous block assemblies, be respectively arranged with transverse concave groove, in the left and right sides of inhaling ripple jewel 11, be respectively arranged with the projection matching with this groove; Inhale ripple jewel 11 by projection and groove, with limit, left side contiguous block assembly 13 and the 12 phase clampings of right edge contiguous block assembly.In a preferred embodiment, limit, left side contiguous block assembly 13 comprises a plurality of left sides contiguous block of serial connection successively, and right edge contiguous block assembly 12 comprises a plurality of right edge contiguous blocks of serial connection successively; In this watch chain, can be connected in series at least one and inhale ripple jewel 11.In addition, in this embodiment, this suction ripple jewel is cuboid structure.
In the second embodiment as shown in Figure 2, this decoration main body is bangle, and this bangle comprises chain rope and is serially connected in the chain pearl 22 on chain rope; Inhaling ripple jewel 21 is serially connected on chain rope.In this embodiment, inhale ripple jewel 21 and be configured to spheroid structure, and on chain rope, be serially connected with a plurality of suction ripple jewels 21.
In the 3rd embodiment as shown in Figure 3, this decoration main body is necklace, and this necklace comprises chaining 32, and this suction ripple jewel 31 is serially connected on this chaining 32 usings as pendant.In this embodiment, this suction ripple jewel 31 is configured to cuboid structure and is provided with three manholes on suction ripple jewel.In the 4th embodiment as shown in Figure 4, this decoration main body is also necklace, and this necklace comprises chaining 42, and this suction ripple jewel 41 is serially connected on this chaining 42 usings as pendant.In this embodiment, this suction ripple jewel 41 is configured to sub-elliptical body structure, and at its surface engraving grid decorative pattern.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1. inhale ripple diamond material for one kind, it is characterized in that, comprise following component and proportioning: the nickel protoxide of the ferric oxide of 60 ~ 70 weight parts, 5 ~ 15 weight parts, the zinc oxide of 16 ~ 24 weight parts, the cupric oxide of 3 ~ 6.8 weight parts, the Vanadium Pentoxide in FLAKES of the bismuthous oxide bismuth trioxide of 0.1 ~ 0.5 weight part, 0.1 ~ 0.3 weight part, the cobalt sesquioxide of the Niobium Pentxoxide of 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part.
2. a manufacture method of inhaling ripple diamond material, is characterized in that, comprises the following steps:
A1: by the ferric oxide of 60 ~ 70 weight parts, the nickel protoxide of 5 ~ 15 weight parts, the zinc oxide of 16 ~ 24 weight parts, the cupric oxide of 3 ~ 6.8 weight parts, the bismuthous oxide bismuth trioxide of 0.1 ~ 0.5 weight part, the Vanadium Pentoxide in FLAKES of 0.1 ~ 0.3 weight part, it is that 9% model is the polyvinyl alcohol of 24-28 that the cobalt sesquioxide of the Niobium Pentxoxide of 0.1 ~ 0.2 weight part and 0.1 ~ 0.5 weight part adds the main concentration by 1 weight part, the subsidiary material that the defoamer of dispersant A-15 of 0.8 weight part and 0.005 weight part forms are to obtain mixing material,
A2: by grinding, described mixing material is evenly mixed in sand mill, wherein, the weight ratio of mixing material and abrading-ball and water is 1 ︰ 8 ~ 10 ︰ 1 ~ 1.5;
A3: the mixing material after mixing is sprayed dry;
A4: be under the condition of 800 ~ 930 ℃ in temperature, the dried mixing material of spraying is by rotary kiln pre-burning 30 ~ 45 minutes, to obtain described suction ripple diamond material.
3. inhale a ripple jewel, it is characterized in that, use suction ripple diamond material as claimed in claim 1 to make.
4. a manufacture method for suction ripple jewel as claimed in claim 3, is characterized in that, comprises the following steps:
B1: described suction ripple diamond material is pulverized to granulation, take and obtain the particulate material that size is 0.1 ~ 0.3% as 0.1 ~ 0.5mm and water content;
B2: described particulate material is carried out to forming processes, take and obtain density as 3.2 ~ 3.4 grams/cm 3green compact;
B3: in temperature, be under the condition of 1000 ~ 1180 ℃, by described green sintering 4 hours to obtain the suction ripple jewel of predetermined shape and size;
B4: by one or more in the following, described suction ripple jewel is carried out to precision work: cutting, engraving, boring, grinding and buffing etc. and the same or analogous working method of artificial gem-jade.
5. method according to claim 4, is characterized in that, via accurately machined suction ripple jewel profile, is that many cut surfaces or arc surface and its outward appearance are sparkling and crystal-clear smooth shiny black or color bright.
6. method according to claim 4, is characterized in that, described step B1 comprises the following steps:
B11: described suction ripple diamond material is ground, take and obtain the pulverised material that particle diameter is 0.7 ~ 0.8mm;
B12: the ratio that is 1 ~ 1.2% in solid content; the concentration that adds 1 weight part in pulverised material is that 9% model is the polyvinyl alcohol of 24-28; by sponging granulator, carry out granulation, obtaining size is the described particulate material that 0.1 ~ 0.5mm and water content are 0.1 ~ 0.3%.
7. method according to claim 6, is characterized in that, in described step B11, by sand mill or vibromill, grinds, and wherein, the weight ratio of described suction ripple diamond material and water is 1 ︰ 0.5 ~ 0.7.
8. method according to claim 4, is characterized in that, in described step B2, described particulate material is packed in blank mould, and uses powder shaping press to make described green compact.
9. method according to claim 4, is characterized in that, in described step B3, in tunnel furnace, described green compact is carried out to sintering.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105601258A (en) * 2015-05-20 2016-05-25 章韵瑾 Artificial gemstones and preparation method thereof

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CN101412622A (en) * 2008-10-31 2009-04-22 天通控股股份有限公司 High-frequency nickel-copper-zinc ferrite and preparation thereof
CN102219485A (en) * 2010-04-16 2011-10-19 深圳先声科技发展有限公司 Skin scraping plate and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
US20050230656A1 (en) * 2002-02-01 2005-10-20 Sanyo Electric Co., Ltd. Composite magnetic material and a method for producing the same
CN101050108A (en) * 2006-04-07 2007-10-10 横店集团东磁有限公司 Low dissipative ferrite material of manganese and zinc in broad frequency, and high magnetic permeability, and preparation method
CN101412622A (en) * 2008-10-31 2009-04-22 天通控股股份有限公司 High-frequency nickel-copper-zinc ferrite and preparation thereof
CN102219485A (en) * 2010-04-16 2011-10-19 深圳先声科技发展有限公司 Skin scraping plate and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105601258A (en) * 2015-05-20 2016-05-25 章韵瑾 Artificial gemstones and preparation method thereof

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