CN101037337A - Preparation method of micro crystal wearable ceramic ball - Google Patents

Preparation method of micro crystal wearable ceramic ball Download PDF

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Publication number
CN101037337A
CN101037337A CN 200710014580 CN200710014580A CN101037337A CN 101037337 A CN101037337 A CN 101037337A CN 200710014580 CN200710014580 CN 200710014580 CN 200710014580 A CN200710014580 A CN 200710014580A CN 101037337 A CN101037337 A CN 101037337A
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ceramic balls
microcrystalline
resistant ceramic
parts
ball
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CN 200710014580
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张合军
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淄博启明星新材料有限公司
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Publication of CN101037337A publication Critical patent/CN101037337A/en

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Abstract

A preparing method for a crystallite wear-resistant ceramic ball belongs to a technical field of abrasive media, which is characterized in that: firstly preparing a superfine material adopting wet ball milling, spraying and prilling; then rolling moulding; finally the crystallite wear-resistant ceramic ball with a diameter of 0.5-50mm after drying, firing and polishing. The inventive method has lots of advantages such as little equipment, low cost, large output and easy expansion; meanwhile, the ceramic ball is high-density, wear-resistant and stable.

Description

一种微晶耐磨陶瓷球的制法 Microcrystal resistant ceramic balls Method

技术领域 FIELD

本发明属于研磨介质技术领域,具体涉及一种高铝质或锆英石质的陶瓷球及其制法。 The present invention belongs to the technical field of grinding media, particularly relates to a preparation method of a high alumina ceramic balls or of zircon.

背景技术 Background technique

陶瓷球因其具有高强度、高硬度、耐磨、耐腐蚀的特性,现作为研磨介质被广泛应用于陶瓷、电子、建材、新材料等领域。 Ceramic ball because of its high strength, high hardness, wear and corrosion resistance characteristics, as a grinding medium are now widely used in ceramics, electronics, building materials, and new materials. 现有技术的陶瓷球通常采用等静压成型的方式制成,例如:《材料导报》2000年10月第14卷专辑 贾光耀、张伟儒等《低成本氧化锆研磨球的研制》公开了一种研磨介质的制法,采用湿法球磨及喷雾造粒制备超细粉体,然后在0.1~0.16GPa压力下采用冷等静压成型,最后经过高温烧成制备氧化锆研磨球,其公开的内容引用于此。 Ceramic balls made of the prior art usually isostatic pressing manner, for example: "Materials Review" October 2000, Volume 14 Jia Guangyao album, etc. Zhangwei Ru "Development of Low Cost zirconia grinding balls", discloses a method of grinding media, prepared using a wet ball milling and spray granulation ultrafine powder, and cold isostatic pressing at a pressure of 0.1 ~ 0.16GPa, and finally through high temperature firing zirconia grinding balls, the disclosure of incorporated herein by reference.

现有技术中的滚球成型方法,一般是将超细粉体原料泥浆挤出切断造粒,然后滚动成型,其存在的缺点是:1)该方法需要的设备多,一次性投入大;2)该方法操作复杂,且由于制得的种球粒径均一性不佳,导致滚动时间越长,陶瓷球的粒径差别越大,从而使本方法只适用于小粒径陶瓷球的制备,特别适用于小于8mm陶瓷球。 Ball forming method of the prior art, generally ultrafine powder raw material is cut mud extrusion granulation, rolling and molding, its shortcomings is that: 1) the method requires multiple devices, one-time investment; 2 ) this method is complicated operation, and obtained due to poor uniformity of the particle size of the ball, resulting in the longer sliding time, the greater the difference in diameter ceramic balls, so that this method applies only to the preparation of small particle size in the ceramic balls, especially for less than 8mm ceramic balls.

发明内容 SUMMARY

本发明针对现有技术中存在的问题,提供了一种微晶耐磨陶瓷球的制法,包括滚动成球工序,采用过筛制种球,然后滚动成球后经过烘干、烧成、磨光等工序制成用于研磨介质的陶瓷球;本发明的另一个目的是,采用本发明的方法,制备了两种密度大、硬度高,耐磨性好的高铝质和锆英石质的陶瓷球。 The present invention addresses the problems in the prior art, there is provided a wear-resistant ceramic balls microcrystal preparation method, including a rolling step into a ball, the ball seed using sieving, after drying and rolling the ball into the baked, polishing processes is made of a ceramic ball grinding media; another object of the present invention, the method of the present invention, a large two densities, the prepared high hardness, good wear resistance and high alumina zircon quality ceramic balls.

本发明具体采用如下的技术方案实现:一种微晶耐磨陶瓷球的制法,其特征是,本质上采用滚动成球的方法制备粒径为0.5-50mm的微晶耐磨陶瓷球。 In particular the present invention, the following technical solution: microcrystal resistant ceramic balls manufacturing method, characterized in that a rolling balling preparation method 0.5-50mm diameter ceramic balls wear microcrystalline nature.

所述的微晶耐磨陶瓷球的制法,其特征是,包括如下步骤:1)配料;2)装磨,将原料球磨至粒度为0.5-2μm;3)出磨,喷雾造粒,制得超细粉体; The wear-resistant ceramic balls microcrystalline manufacturing method, characterized by comprising the following steps: 1) the ingredients; 2) grinding apparatus, the material is milled to a particle size 0.5-2μm; 3) for grinding, spray granulating, obtain ultra-fine powder;

4)滚动成球;5)烘干;6)烧成;7)抛光,制得所述的微晶耐磨陶瓷球。 4) rolling into a ball; 5) drying; 6) Firing; 7) polishing, microcrystalline wear-resistant ceramic balls prepared according.

所述的滚动成球工序包括如下步骤:1)种球的制备:将100重量份的超细粉体放入成球机,加入10~15重量份的水,搅拌混合均匀,过筛,制得粒径为0.1~0.3mm的种球;2)球的滚制:向滚动成球机中加入种球,滚动成型时,按照超细粉体与水重量比1∶1向滚动成球机内连续加料;加料的速度一般与陶瓷球的粒径呈正比,即随着陶瓷球粒径的增大,加料、加水量要适量增加。 Said step of rolling into a ball comprising the steps of: 1) Preparation Bulb: 100 parts by weight of the ultra-fine powder placed into a ball machine, 10 to 15 parts by weight of water, uniformly stirred and mixed, sieved, Ltd. bulbs have a particle size of 0.1 ~ 0.3mm; and 2) of the ball-rolling: rolling into the ball of the ball mill was added, rolling molding, ultra-fine powder with water according to the weight ratio of 1 ball rolling machine continuous feed; feeding speed generally proportional to the diameter of the ceramic balls, ceramic balls i.e. with increasing particle size, the addition, to increase the amount of water added.

3)抛光:当陶瓷球滚动到规定尺寸后,加水自然磨光1~2h。 3) Polishing: After the ceramic balls rolling into a predetermined size, add water, natural finishing 1 ~ 2h.

所述的烧成工序按照下列烧成曲线进行:常温~300℃ 50℃/h300~1200℃ 70~80℃/h1200℃保温1~2小时1200~1450℃ 80~90℃/h1450℃保温2~3小时自然降温至300℃,出窑。 The baking step is performed according to the following firing profile: heat 2 ~ 70 ~ 80 ℃ / h1200 ℃ incubated at room temperature ~ 300 ℃ 50 ℃ / h300 ~ 1200 ℃ 1 ~ 2 hours 1200 ~ 1450 ℃ 80 ~ 90 ℃ / h1450 ℃ 3 hours natural cooling to 300 ℃, kiln.

所述的配料工序是将下述重量份数的原料粉末混合均匀:氧化铝粉 85~95份高岭土 1~10份碳酸氢钙 1份滑石粉 1~3份粘合剂 0.05~0.1份。 It said compounding step is a raw material powder mixed in the following weight parts: 85 to 95 parts of alumina powder of 0.05 to 0.1 parts kaolin clay 1 to 10 parts of calcium carbonate having 1 to 3 parts of talc 1 part binder.

所述的粘合剂是名称为PVA-99的商品。 The adhesive is a name of PVA-99 product.

按照上述配料工艺制得的微晶耐磨陶瓷球,由以下重量百分比的组分组成: According to the above process to prepare a microcrystalline formulation resistant ceramic balls, the following weight percentage constituents:

Al2O392-99%SiO20.1-6%MgO 0.8-1.8%CaO 0.1-0.2%。 Al2O392-99% SiO20.1-6% MgO 0.8-1.8% CaO 0.1-0.2%.

上述组分的微晶耐磨陶瓷球理化性质为:密度≥3.6g/cm3;晶粒大小为1.0-1.5μm;磨耗≤0.1g/Kg.h;莫氏硬度≥9;吸水率≤0.02%。 Physicochemical properties of wear-resistant ceramic balls microcrystalline above components are: density ≥3.6g / cm3; a grain size of 1.0-1.5; wear ≤0.1g / Kg.h; Mohs hardness ≥9; ≤0.02% Water absorption .

所述的配料工序是将下述重量份数的原料粉末混合均匀:氧化锆粉 90~98份氧化钇粉 1~10份粘合剂 0.05~0.1份。 Said compounding step is a raw material powder mixed in the following weight parts: 0.05 to 0.1 parts of zirconium oxide powder, 90 to 98 parts of yttrium oxide powder, 1 to 10 parts binder.

所述的粘合剂是名称为PVA-99的商品。 The adhesive is a name of PVA-99 product.

按照上述配料工艺制得的微晶耐磨陶瓷球由以下重量百分比的组分组成:CrO294-96%YO23-5%Al2O30.3-1%。 According to the above process to prepare a microcrystalline formulation wear-resistant ceramic balls of the following weight percentage constituents: CrO294-96% YO23-5% Al2O30.3-1%.

上述组分微晶耐磨陶瓷球理化性质为:密度≥6g/cm3;晶粒大小为0.3-0.5μm;磨耗≤0.01g/Kg.h;H硬度≥1250;压碎强度≥15KN。 Microcrystalline above components as wear-resistant ceramic balls Physicochemical properties: density ≥6g / cm3; a grain size of 0.3-0.5; wear ≤0.01g / Kg.h; H hardness ≥1250; crush strength ≥15KN.

本发明所具有的有益效果在于:1)与现有技术的成型方法相比,本发明的工艺简单,需要的设备少、一次性投资少,产量大且容易扩产;2)本发明的方法适用范围大,能够用于粒径为0.5~50mm的陶瓷球的生产;3)本发明制得的陶瓷球密度大,耐磨,且化学性质稳定;具体实施方式实施例11)配料:氧化铝粉85Kg,高岭土1Kg,碳酸氢钙1Kg滑石粉1Kg,粘合剂(PVA-99)0.05Kg; The present invention has an advantageous effect in that: 1) Compared with prior art molding methods, the process of the present invention is simple, requires less equipment, less time investment, large output and easy expansion; 2) the method according to the present invention a wide range of applicability to a particle size of 0.5 ~ 50mm ceramic balls production; large-3) obtained in the present invention density ceramic balls, abrasion, and chemical stability; DETAILED DESCRIPTION Example 11) ingredients: alumina powder 85Kg, 1Kg kaolin, talc, calcium bicarbonate 1Kg 1Kg, binder (PVA-99) 0.05Kg;

2)按照现有技术,用湿法球磨的方法将原料球磨至粒度为1μm,出磨,喷雾造粒,制得超细粉体;3)按照下列步骤滚动成球:a.种球的制备:将100Kg的超细粉体放入成球机,加入10Kg的水,搅拌混合均匀,过筛,制得粒径为0.1mm的种球;b.球的滚制:向滚动成球机中加入种球,滚动成型时,按照超细粉体与水重量比1∶1向滚动成球机内连续加料;滚动过程中不断检测成球的直径,滚动8~10h,就制得直径为0.5mm的陶瓷球;加水自然磨光1~2h。 2) According to the prior art, a method using a wet ball milling to a particle size of the raw material is 1 m, the grinding, spray granulation to prepare superfine powder; 3) rolling into a ball the following steps: preparing a bulbs. : 100Kg ultrafine powder was placed into a ball machine, 10Kg of water was added, stirred and mixed uniformly, and sieved to obtain a particle size of 0.1mm bulbs; b. ball-rolling: rolling into a ball mill to the addition of the ball, rolling molding, ultra-fine powder with water according to the weight ratio of 1 to continuously feed to the rolling ball machine; continuously detecting the diameter of the rolling process into a ball, rolling 8 ~ 10h, to a diameter of about 0.5 mm ceramic balls; polished natural water was added 1 ~ 2h.

5)烘干:在自然条件下将磨光的陶瓷球风干;6)烧成工序,按照下列烧成曲线进行:窑炉内50℃/h的速度从常温升至300℃,然后以80℃/h升温至1200℃,保温1小时;然后以90℃/h升温至1450℃,保温2小时后,自然降温至300℃,出窑。 5) Drying: Under natural conditions the dried polish ceramic balls; 6) firing step, the firing profile in accordance with the following: 50 ℃ / h speed of the kiln was raised from a room temperature 300 ℃, then 80 ℃ / h was raised to 1200 deg.] C, for 1 hour; then warmed to 1450 ℃ at 90 deg.] C / h, after incubation for 2 hours and natural cooling to 300 ℃, kiln.

7)抛光,制得所述的微晶耐磨陶瓷球。 7) polishing, microcrystalline wear-resistant ceramic balls prepared according.

按照上述方法,制得的陶瓷球,由以下重量百分比的组分组成:Al2O392-99%SiO20.1-6%MgO 0.8-1.8%CaO 0.1-0.2%。 According to the above method, the ceramic balls prepared from the following composition by weight percentages of components: Al2O392-99% SiO20.1-6% MgO 0.8-1.8% CaO 0.1-0.2%.

其理化性质为:密度≥3.6g/cm3;晶粒大小为1.0-1.5μm;磨耗≤0.1g/Kg.h;莫氏硬度≥9;吸水率≤0.02%。 Its physical and chemical properties: - density ≥3.6g / cm3; a grain size of 1.0-1.5; wear ≤0.1g / Kg.h; Mohs hardness ≥9; water absorption ≤0.02%.

实施例21)配料:氧化锆粉90Kg,氧化钇粉1Kg,粘合剂(PVA-99)0.05Kg,将上述重量的原料混合均匀备用;2)按照现有技术,用湿法球磨的方法将原料球磨至粒度为0.5μm,出磨,喷雾造粒,制得超细粉体;3)按照下列步骤滚动成球:a.种球的制备:将100Kg的超细粉体放入成球机,加入15Kg的水,搅拌混合均匀,过筛,制得粒径为0.3mm的种球;b.球的滚制:向滚动成球机中加入种球,滚动成型时,按照超细粉体与水重量比1∶1向滚动成球机内连续加料;滚动过程中不断检测成球的直径,滚动30~35h,制得直径为50mm的陶瓷球;加水自然磨光1~2h。 Example 21) Ingredients: 90Kg zirconia powder, yttrium oxide powder 1Kg, binder (PVA-99) 0.05Kg, by weight of the above raw materials were mixed uniformly standby; 2) according to the prior art, the wet ball mill method will material is milled to a particle size of 0.5 m, a grinding, spray granulation to prepare superfine powder; 3) rolling into a ball the following steps: preparing a bulb: 100Kg ultrafine powder was placed into a ball machine. , 15Kg of water was added, stirred and mixed uniformly, and sieved to obtain a particle size of 0.3mm bulbs; b. ball-rolling: rolling into the ball of the ball mill was added, rolling molding, ultra-fine powder according to the with continuous addition of water weight ratio of 1 to machine the ball rolling into; scrolling continuously detected as the diameter of a ball, rolling 30 ~ 35h, to prepare a 50mm diameter ceramic balls; NATURAL polished with water 1 ~ 2h.

5)烘干:在自然条件下风干; 5) Drying: dried under natural conditions;

6)烧成工序,按照下列烧成曲线进行:窑炉内50℃/h的速度从常温升至300℃,然后以80℃/h升温至1200℃,保温1小时;然后以90℃/h升温至1450℃,保温2小时后,自然降温至300℃,出窑。 6) firing step, the firing profile in accordance with the following: the kiln 50 ℃ / h from a room temperature rise rate of 300 ℃, then 80 ℃ / h was raised to 1200 deg.] C, for 1 hour; then 90 ℃ / h heated to 1450 deg.] C, after incubation for 2 hours natural cooling to 300 ℃, kiln.

7)抛光,制得所述的微晶耐磨陶瓷球。 7) polishing, microcrystalline wear-resistant ceramic balls prepared according.

按照上述方法,制得的陶瓷球,由以下重量百分比的组分组成:CrO294-96%YO23-5%Al2O30.3-1%。 According to the above method, the ceramic balls prepared by the following weight percentage constituents: CrO294-96% YO23-5% Al2O30.3-1%.

上述的微晶耐磨陶瓷球理化性质为:密度≥6g/cm3;晶粒大小为0.3-0.5μm;磨耗≤0.01g/Kg.h;H硬度≥1250;压碎强度≥15KN。 Microcrystalline resistant ceramic balls above physical and chemical properties: - density ≥6g / cm3; a grain size of 0.3-0.5; wear ≤0.01g / Kg.h; H hardness ≥1250; crush strength ≥15KN.

实施例3-8配料工序按照表1、2进行,其他同实施例1。 Example 3-8 Step ingredients in Table 1 and 2, the same as in Example 1 other.

表1 实施例3-5配料表 Table 1 Ingredients Example 3-5

表2 实施例6-8配料表 Table 2 Examples 6-8 Ingredients

本发明上述的实施例是对本发明的说明而不能限制本发明,在与本发明权利要求书相当的含义和范围内的任何改变和组合,都应认为是在权利要求书的范围内。 Embodiment of the present invention, the above-described embodiments are illustrative of the invention and not to limit the invention, and any changes in the combination of the present invention as claimed in the claims meaning and range equivalent, should be considered within the scope of the appended claims.

Claims (9)

1.一种微晶耐磨陶瓷球的制法,其特征是,本质上采用滚动成球的方法制备粒径为0.5-50mm的微晶耐磨陶瓷球。 A wear-resistant ceramic ball microcrystalline production method, wherein, as the rolling ball method of preparing microcrystalline particle diameter of 0.5-50mm wear-resistant ceramic balls in nature.
2.根据权利要求1所述的微晶耐磨陶瓷球的制法,其特征是,包括如下步骤:1)配料;2)装磨,将原料球磨至粒度为0.5-2μm;3)出磨,喷雾造粒,制得超细粉体;4)滚动成球;5)烘干;6)烧成;7)抛光,制得所述的微晶耐磨陶瓷球。 The microcrystalline resistant ceramic balls manufacturing method according to claim 1, characterized in, comprising the following steps: 1) the ingredients; 2) grinding apparatus, the material is milled to a particle size 0.5-2μm; 3) for grinding , spray granulation to prepare superfine powder; 4) rolling into a ball; 5) drying; 6) firing; 7) polishing the obtained microcrystalline wear-resistant ceramic balls.
3.根据权利要求2所述的微晶耐磨陶瓷球的制法,其特征是,滚动成球工序包括如下步骤:1)种球的制备:将100重量份的超细粉体放入成球机,加入10~15重量份的水,搅拌混合均匀,过筛,制得粒径为0.1~0.3mm的种球;2)球的滚制:向滚动成球机中加入种球,滚动成型时,按照超细粉体与水重量比1∶1向滚动成球机内连续加料;3)抛光:当陶瓷球滚动到规定尺寸后,加水自然磨光1~2h。 The microcrystalline resistant ceramic balls manufacturing method according to claim 2, characterized in that the step of rolling into a ball comprising the steps of: 1) Preparation Bulb: 100 parts by weight of the ultra-fine powder to be placed ball machine, 10 to 15 parts by weight of water, uniformly stirred and mixed, and sieved to obtain a particle size of 0.1 ~ 0.3mm bulb; and 2) of the ball-rolling: rolling into the ball of the ball mill was added, rolling molding, ultra-fine powder with water according to the weight ratio of 1 to continuous addition to the rolling ball machine; 3) polishing: after the ceramic balls rolling into a predetermined size, add water, natural finishing 1 ~ 2h.
4.根据权利要求3所述的微晶耐磨陶瓷球的制法,其特征是滚动时间为8~35h。 The microcrystalline resistant ceramic balls manufacturing method according to claim 3, characterized in that the rolling time of 8 ~ 35h.
5.根据权利要求2所述的微晶耐磨陶瓷球的制法,其特征是,配料工序是将下述重量份数的原料粉末混合均匀:氧化铝粉 85~95份高岭土 1~10份碳酸氢钙 1份滑石粉 1~3份粘合剂 0.05~0.1份。 The microcrystalline resistant ceramic balls manufacturing method according to claim 2, characterized in that the step is a mixed ingredients raw powder of the following parts by weight: 85 to 95 parts of alumina powder of 1 to 10 parts kaolin clay parts of talc, calcium bicarbonate, 1 to 3 parts binder 1 0.05 to 0.1 parts.
6.根据权利要求2所述的微晶耐磨陶瓷球的制法,其特征是,配料工序是将下述重量份数的原料粉末混合均匀:氧化锆粉 90~98份氧化钇粉 1~10份粘合剂 0.05~0.1份。 The microcrystalline resistant ceramic balls manufacturing method according to claim 2, characterized in that the dosing process is a raw material powder mixed in the following weight parts: the zirconia powder 90 to 98 parts of yttria powder 1 10 parts of binder 0.05 parts to 0.1.
7.根据权利要求2所述的微晶耐磨陶瓷球的制法,其特征是,烧成工序按照以下烧成曲线进行:常温~300℃ 50℃/h300~1200℃ 70~80℃/h1200℃保温1~2小时1200~1450℃ 80~90℃/h1450℃保温2~3小时自然降温至300℃,出窑。 The microcrystalline resistant ceramic balls manufacturing method according to claim 2, wherein the calcining step is carried out according to the following firing profile: room temperature ~ 300 ℃ 50 ℃ / h300 ~ 1200 ℃ 70 ~ 80 ℃ / h1200 ℃ for 1 to 2 hours 1200 ~ 1450 ℃ 80 ~ 90 ℃ / h1450 ℃ incubated for 2-3 hours natural cooling to 300 ℃, kiln.
8.按照权利要求5的制法制备的微晶耐磨陶瓷球,其特征是a.所述的微晶耐磨陶瓷球由以下重量百分比的组分组成:Al2O392-99%SiO20.1-6%MgO 0.8-1.8%CaO 0.1-0.2%b.所述的微晶耐磨陶瓷球理化性质为:密度≥3.6g/cm3;晶粒大小为1.0-1.5μm;磨耗≤0.1g/Kg.h;莫氏硬度≥9;吸水率≤0.02%。 8. The microcrystal of claim resistant ceramic balls prepared by the system 5, characterized in that a wear-resistant ceramic balls microcrystalline the percentage by weight of the following constituents:. Al2O392-99% SiO20.1-6 .% MgO 0.8-1.8% CaO 0.1-0.2% b microcrystalline said wear-resistant ceramic balls physicochemical properties: - density ≥3.6g / cm3; a grain size of 1.0-1.5; wear ≤0.1g / Kg.h ; Mohs hardness ≥9; water absorption ≤0.02%.
9.按照权利要求6的制法制备的微晶耐磨陶瓷球,其特征是a.所述的微晶耐磨陶瓷球由以下重量百分比的组分组成:CrO294-96%YO23-5%Al2O30.3-1%。 9. The microcrystal of claim resistant ceramic balls prepared by a system 6, characterized in that a wear-resistant ceramic balls microcrystalline the percentage by weight of the following constituents:. CrO294-96% YO23-5% Al2O30 .3-1%. b.所述的微晶耐磨陶瓷球理化性质为:密度≥6g/cm3;晶粒大小为0.3-0.5μm;磨耗≤0.01g/Kg.h;H硬度≥1250;压碎强度≥15KN。 Microcrystalline resistant ceramic balls as the physicochemical properties of b: density ≥6g / cm3; a grain size of 0.3-0.5; wear ≤0.01g / Kg.h; H hardness ≥1250; crush strength ≥15KN.
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