CN86100725A - 从氧化铝和/或二氧化锆为基料的无水泥振捣料在磨损部件制造中的应用 - Google Patents
从氧化铝和/或二氧化锆为基料的无水泥振捣料在磨损部件制造中的应用 Download PDFInfo
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Abstract
本发明涉及以氧化铝和/或二氧化锆为基料的无水泥振捣料在与液态金属——特别是钢水—相接触的板式闸门磨损部件制造中的应用,必要时同时使用至多10%(重量)的三氧化二铬(Cr2O3)碳化硅(SiC)和/或碳载体,以及含量为2至8%(重量,以其它固体成分为基准计)的非晶形细粒硅酸或胶态硅酸作粘合剂,它们在成型及干燥后又在300至1000℃的温度下经过退火或焙烧。
Description
本发明涉及以氧化铝和/或二氧化锆为基料的无水泥振捣料在与液态金属-特别是钢水-相接触的板式闸门磨损部件制造中的应用,例如,特别是在闸板制造中的应用,但也可以用于制造装在这种闸板上,可调换的套筒。这种板式闸门是在盛放金属熔体-特别是钢水-的容器中使用的。
磨损部件一般是指那些部件,它们在达到一定磨损极限后即更新或调换,以便保证同它们一起运行的设备的安全。它们大多数都要受到高温侵蚀、化学腐蚀以及有可能受到的磨蚀,在某些情况下还必须满足很高的强度要求,因此,举例来说,盛有金属熔体的容器上所装板式闸门的闸板,其先决条件是,闸板即使在耐火闸板材料不可避免的温差引起的变形的情况下,也要能够不费力地移动并保持可靠的密封,同时鉴于在可调浇注截面流过的金属熔体所引起的热侵蚀、化学腐蚀以及磨蚀,这样一种板式闸门上的闸板至少要能经受住一次容器出料。
至今,为了满足这样一些或类似的一些要求,磨损部件都用高质量的、干的或半干的耐火材料组合物以比较昂贵的捣固法、振实法和压制法以及或多或少耗资巨大的后处理工艺来制造。具有密闭配合形状的磨损部件,在温度和时间必须准确控制的热处理工艺之后还需要小心翼翼地进行切削加工,例如,在板式闸门的闸板上,那些在可以轻快调节时应该与其它表面共同起密封作用的闸板表面就必须经过研磨。然而,孔眼、槽沟等也常常需要经过切削加工,使得需要进行机加工,特别是密闭配合的磨损部件成为生产成本显著增高的原因,西德展出说明书(DE-AS)26 24 299公开了仍然考虑这些要求的板式闸门磨损部件的应用。然而,所涉及的这些磨损部件都是由水凝性高铝的耐火混凝土制成的,此外,欧州专利说明书0015638也公开了一种制造这些滑动装置的方法,其中用MgO作耐火的基础材料,它借助多磷酸盐和硼酸来粘合。用这种已知的方法同样通过振动来使磨损件成型。由西德公开说明书(DE-OS)2739767可知,细粒硅酸或胶态硅酸可作为粘接剂用于以氧化铝为基料的耐火材料,但要同时应用另外一种粘土状的粘合材料,其中所述及的是一种未经成形、未经焙烧的耐火材料,它在块砌耐火结构的应用中有用处,而且除了相对大量的水之外它还含有一种用于粘合的酸。
本发明的任务是提供强度高和热性能优异的板式闸门用磨损部件,它们应当易于制造并在应用时具有较已知磨损部件更好的性能。
该任务可按照本发明藉助无水泥振捣料的应用来解决,也即,应用以氧化铝和/或二氧化锆为基料的无水泥振捣料来制造与液态金属属-特别是钢水相接触的板式闸门用磨损部件,必要时还要同时使用至多10%(重量比)的三氧化二铬、碳化硅和/或碳载体,以及含量为2-8%(重量比,相对于其它固体成分)的非晶形细粒硅酸或胶态硅酸作粘接剂,振捣料在成型和干燥后,在300-1000℃温度下退火或焙烧。
通过应用本发明的无水泥振捣料,可以避免由水凝性耐火混凝土所制磨损部件在1000℃范围内由水凝键合所引起的强度最低值。此外,本发明所应用的磨损部件具有较高的热塑性,也就是说,在预烧时不出现裂纹,在以后使用时的应力下裂纹也同样少。再者,本发明所应用的磨损部件中还可以加入三氧化二铬(Cr2O3),而不形成污染环境的铬酸钙。
在应用本发明的无水泥振捣料时,同样可以象混凝土那样浇铸成形,并且能完全与浇铸型面贴合,以致藉助模型的光滑而洁净的表面也可以在所铸形体上获得光滑而洁净的对应表面。因此,有可能就在平板的成形过程中得到精度很高的闸板光滑表面,因而省去了费时的机械加工。同样,可使流出口或其它的特殊部分直接浇铸而成,这样就可从铸模中取出成品闸板。
为了制造本发明所应用的无水泥振捣料,要用氧化铝和/或二氧化锆作主要耐火成分。氧化铝可用刚玉或矾土,其形式可为片状矾土,也可为煅烧矾土。刚玉通常以熔化刚玉的形式来使用。氧化铝、二氧化锆或它们的混合物以常用的粒度范围使用,例如最大粒度为6mm。这种耐火主成分或其混合物的常用粒度组成举例如下:
粒度 重量份数
3.15-6mm 15-25
1 -3.15mm 18-30
0.5-1mm 5-10
0.09-0.5mm 7-16
<0.09 mm 15-25
这种无水泥振捣料必要时至多可以含有10%(重量比,相对于所有固体成分而言)的三氧化二铬、碳化硅和/或碳载体作为添加物。三氧化二铬通常用粒度小于0.09mm的细粒物料。碳化硅可用细粒物料,也就是说,用粉状料或者也可用粒度至多为3.15mm的粗粒物料。但优先选用的是碳化硅制备过程中的碳化硅烟尘。无水泥振捣料可以含有石墨、非晶形碳、焦油沥青、树脂以及它们的混合物作为碳载体。
本发明所应用的振捣料含有2-8%(重量比,相对于其它固体成分)的非晶形细粒硅酸或胶态硅酸作粘合剂。这些硅酸为市场上通常出售的产品,但本发明所应用的振捣料中特别加入了胶态硅酸,而且这类硅酸在硅铁生产过程中作为付产物大量形成。这类胶态硅酸(也称热解硅酸)的最大粒度通常为0.5μm。
根据特别优先采用的实施方式,本发明所应用的振捣料还含有0.2至5%(重量比,以其它固体成分为基准)的纤维状材料。这里涉及到陶瓷纤维,特别是应用温限高的纤维,也即Al2O3含量高的硅酸铝纤维;涉及到钢纤维或者也涉及到碳纤维或炭纤维。
通过添加可以单独加入或者以混合物形式加入的这类纤维,提高了磨损部件的强度,特别是增加了防止裂纹的稳定性。
本发明所应用的振捣料可用本身公知的方法加工成成型件。为此,使原料组分在混合器中互相完全混合,并与要求量(通常为每100公斤固体成分3至8升水)的拌合水混合。然后,将混合好的振捣料浇入一个-通常为失蜡铸造的-金属模具中,并在一个振捣台上振实,这种振实可在有或没有临时负荷的情况下进行,例如用一个捣锤来进行。接着,使此成型件干燥,然后再在300-1000℃的温度下退火或焙烧。因此可以获得一种极其坚固的粘合,优先选择的是将干燥的成型件在600~800℃的温度下退火或焙烧。
按照另一优先采用的实施方式,将加温或焙烧过的成型件再用焦油浸渍,然后进行一次热分解处理。焦油浸渍是以公知方式进行的,热分解温度通常在350~600℃范围内。
在制造本发明所应用的振捣料时加入少量通常的液化剂则更为有利,例如加入0.02-0.5%(重量比,以其它固体成分为基准)。这些液化剂例如可为如多磷酸盐那样的聚电解质。
下面用实施例进一步解释本发明。
实施例1
将94份(重量,下略)最大粒度为6mm的片状矾土,2份最大粒度为0.09mm的煅烧矾土和4份市售的、最大粒度为0.5μm的非晶形硅酸在混合器中完全混合。然后,加入0.05份市售的多磷酸盐液化剂(商品名称为GieBfix C 30)以及每100公斤固体成分4升水并彻底搅拌,接着向原料混合物中再加入1份石墨。
由此物料在一个失蜡铸造的金属模具中制成一块尺寸为400mm(高)×250mm(宽)×40mm(厚)的板式闸门闸板,其间将该物料在一振捣台上于15分钟内振捣到模具中。将其在120℃干燥12小时后再在5小时之内于800℃温度下进行退火或焙烧。
下表中总结了如此制造的闸板的各种试验结果。
实施例2
重复实施例1的操作方式,但其中用92份片状矾土、2份煅烧矾土和6份热分解硅酸。混合水的量为每100公斤固体成分4.2升。原料混合物还含1份焦油沥青作为另外的组分。这样制得的闸板的试验结果同样列在下表中。
实施例3至7
操作方式同实施例1,其中使用了下表中所列出的原料。
如此制得的闸板的试验结果均列于表中。
除了闸板之外,用实施例5和6的物料还制造了闸板的可换套筒,其尺寸为:内径=45mm,外径=85mm和长度=200mm。这些套筒也具有极好的磨损性能。
剥落(Peelingtest)试验表明了一种用于制造磨损部件,特别是板式闸门的闸板对的磨损部件的振捣料之实用性。该试验是在下列条件下进行的。
将一块有光滑平面的100×100mm的平板在直径约30mm的区域内用一个适于烧透20至30mm厚钢板的气焊枪加热,氧气压大约为3.5×105帕斯卡。由支架支撑的焊枪喷咀距平板的距离为50mm,试验时间15秒。若没有出现剥裂,则这种材料能很好地适用于制造板式闸门的闸板对。若在此后在试验物体上刮削时出现颗粒,则该材料可以使用;但只要在试验过程中出现剥裂,则该材料不可使用。
Claims (4)
1、以氧化铝和/或二氧化锆为基料的无水泥振捣料在与液态金属-尤其是钢水-相接触的板式闸门磨损部件制造中的应用,必要时同时使用至多10%(重量比)的三氧化铬(Cr2O3)、碳化硅(SiC)和/或碳载体,以及含量为2至8%(重量比,以其它固体成分为基准计)的非晶形细粒硅酸或胶态硅酸作粘合剂,它们在成型及干燥后又在300至1000℃的温度下经过退火或焙烧。
2、权利要求1所述的应用,其特征在于,该振捣料在600至800℃的温度下被退火或焙烧。
3、权利要求1或2所述的应用,其特征在于,在制造过程中往该振捣料中加入0.2至5%(重量比,以其它固体成分为基准计)的陶瓷纤维,钢纤维和/或碳纤维。
4、上述权利要求之一项所述的应用,其特征在于,用焦油浸渍已经干燥和退火或焙烧后的成型件,然后对其进行热分解处理。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3507876.6 | 1985-03-06 | ||
DE19853507876 DE3507876A1 (de) | 1985-03-06 | 1985-03-06 | Verwendung von zementfreien vibriermassen auf basis von aluminiumoxid und/oder zirkoniumdioxid zur herstellung von verschleissteilen |
Publications (1)
Publication Number | Publication Date |
---|---|
CN86100725A true CN86100725A (zh) | 1986-09-03 |
Family
ID=6264330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN198686100725A Pending CN86100725A (zh) | 1985-03-06 | 1986-01-28 | 从氧化铝和/或二氧化锆为基料的无水泥振捣料在磨损部件制造中的应用 |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0193751B1 (zh) |
JP (1) | JPS61219754A (zh) |
CN (1) | CN86100725A (zh) |
AT (1) | ATE52242T1 (zh) |
BR (1) | BR8600920A (zh) |
CA (1) | CA1257879A (zh) |
DE (1) | DE3507876A1 (zh) |
ES (1) | ES8705834A1 (zh) |
ZA (1) | ZA861048B (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1044800C (zh) * | 1993-02-02 | 1999-08-25 | 张效英 | 无水泥莫来石复合材料浇灌料 |
CN101928140A (zh) * | 2010-06-24 | 2010-12-29 | 无锡市中昊微电子有限公司 | 压力传感器的陶瓷复合弹性体的制备方法及原料混合装置 |
US8129301B2 (en) | 2005-11-21 | 2012-03-06 | Siemens Aktiengesellschaft | Molding compound for producing a fireproof lining |
CN108546088A (zh) * | 2018-07-03 | 2018-09-18 | 合肥连森裕腾新材料科技开发有限公司 | 一种耐磨损陶瓷基复合材料及其制备方法 |
CN110997182A (zh) * | 2017-08-02 | 2020-04-10 | 株式会社Posco | 铸造滑动门 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3700895A1 (de) * | 1987-01-14 | 1988-07-28 | Intracon Handel | Verschluss fuer bodenabstichloecher und dafuer geeignetes verschlussmaterial |
JP2651444B2 (ja) * | 1987-09-03 | 1997-09-10 | 住友金属工業株式会社 | 鋼の連続鋳造用浸漬ノズル |
AU593997B2 (en) * | 1987-09-03 | 1990-02-22 | Sumitomo Metal Industries Ltd. | A nozzle for discharging molten metal used in a casting device |
US4909484A (en) * | 1988-08-02 | 1990-03-20 | Dresser Industries, Inc. | Prevention of slag buildup in steel ladles |
DE3842403C1 (zh) * | 1988-12-16 | 1990-01-18 | Radex-Heraklith Industriebeteiligungs Ag, Wien, At | |
EP0417898A1 (en) * | 1989-08-15 | 1991-03-20 | Magneco/Metrel, Inc. | Gunning composition |
US5064787A (en) * | 1989-11-20 | 1991-11-12 | Magneco/Metrel, Inc. | Ramming compositions |
DE4130452A1 (de) * | 1991-09-13 | 1993-03-18 | Radex Heraklith | Gebrannter feuerfester keramischer koerper |
DE19614516C1 (de) * | 1996-04-12 | 1997-10-09 | Wicona Bausysteme Gmbh | Anordnung zur Beeinflussung des zur Gebäudeinnenseite gerichteten Wärmetransports bei einem mit Solarenergie beheizbaren Gebäude |
DE19614515C1 (de) * | 1996-04-12 | 1997-10-23 | Wicona Bausysteme Gmbh | Anordnung zur Beeinflussung des zur Gebäudeinnenseite gerichteten Wärmetransports bei einem mit Solarenergie beheizbaren Gebäude |
ZA200309168B (en) * | 2002-12-10 | 2004-07-22 | Magneco Metrel Inc | Refractory system for glass melting furnaces. |
US8505336B2 (en) | 2007-06-19 | 2013-08-13 | Magneco/Metrel, Inc. | AZS refractory composition |
US8505335B2 (en) | 2007-06-19 | 2013-08-13 | Magneco/Metrel, Inc. | Refractoy composition for glass melting furnaces |
CN117430410B (zh) * | 2023-12-20 | 2024-03-12 | 中钢洛耐科技股份有限公司 | 赤泥回收出铁口用的陶瓷相结合耐火材料及其制法与应用 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4108675A (en) * | 1975-01-29 | 1978-08-22 | Nippon Kokan Kabushiki Kaisha | Brick for sliding closure of vessel for holding molten metal |
JPS583998B2 (ja) * | 1975-02-15 | 1983-01-24 | ニホンルツボ カブシキガイシヤ | フテイケイタイカザイ |
AT344218B (de) * | 1975-06-02 | 1978-07-10 | Didier Werke Ag | Verschleissteile, insbesondere fuer schieberverschluesse an metallschmelze enthaltenden behaeltern |
US4093470A (en) * | 1976-10-20 | 1978-06-06 | Combustion Engineering, Inc. | Alumina refractories |
BE861127A (fr) * | 1977-11-23 | 1978-03-16 | Centre Rech Metallurgique | Perfectionnement apporte aux busettes de coulee continue des metaux |
FR2420515A1 (fr) * | 1978-03-21 | 1979-10-19 | Produits Refractaires | Compositions refractaires utiles pour la production de pates injectables a faible teneur en eau |
US4218256A (en) * | 1979-03-06 | 1980-08-19 | Kaiser Aluminum & Chemical Corporation | Method of forming slide gate valve parts |
JPS5771859A (en) * | 1980-10-22 | 1982-05-04 | Harima Refractories Co Ltd | Manufacture of precast refractories |
-
1985
- 1985-03-06 DE DE19853507876 patent/DE3507876A1/de active Granted
-
1986
- 1986-01-28 CN CN198686100725A patent/CN86100725A/zh active Pending
- 1986-02-08 EP EP86101647A patent/EP0193751B1/de not_active Expired - Lifetime
- 1986-02-08 AT AT86101647T patent/ATE52242T1/de not_active IP Right Cessation
- 1986-02-12 ZA ZA861048A patent/ZA861048B/xx unknown
- 1986-03-04 BR BR8600920A patent/BR8600920A/pt unknown
- 1986-03-05 CA CA000503392A patent/CA1257879A/en not_active Expired
- 1986-03-05 JP JP61046459A patent/JPS61219754A/ja active Pending
- 1986-03-05 ES ES552668A patent/ES8705834A1/es not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1044800C (zh) * | 1993-02-02 | 1999-08-25 | 张效英 | 无水泥莫来石复合材料浇灌料 |
US8129301B2 (en) | 2005-11-21 | 2012-03-06 | Siemens Aktiengesellschaft | Molding compound for producing a fireproof lining |
US8137610B2 (en) * | 2005-11-21 | 2012-03-20 | Siemens Aktiengesellschaft | Molding compound for producing a fireproof lining |
CN101374784B (zh) * | 2005-11-21 | 2013-07-17 | 西门子公司 | 用于制备耐火衬里的模制浆料 |
CN101928140A (zh) * | 2010-06-24 | 2010-12-29 | 无锡市中昊微电子有限公司 | 压力传感器的陶瓷复合弹性体的制备方法及原料混合装置 |
CN101928140B (zh) * | 2010-06-24 | 2013-05-01 | 无锡市中昊微电子有限公司 | 压力传感器的陶瓷复合弹性体的制备方法及原料混合装置 |
CN110997182A (zh) * | 2017-08-02 | 2020-04-10 | 株式会社Posco | 铸造滑动门 |
US11260450B2 (en) | 2017-08-02 | 2022-03-01 | Posco | Casting sliding gate |
CN110997182B (zh) * | 2017-08-02 | 2022-05-27 | 株式会社Posco | 铸造滑动门 |
CN108546088A (zh) * | 2018-07-03 | 2018-09-18 | 合肥连森裕腾新材料科技开发有限公司 | 一种耐磨损陶瓷基复合材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
ZA861048B (en) | 1986-09-24 |
ES552668A0 (es) | 1987-05-16 |
EP0193751A2 (de) | 1986-09-10 |
CA1257879A (en) | 1989-07-25 |
BR8600920A (pt) | 1986-11-11 |
ATE52242T1 (de) | 1990-05-15 |
ES8705834A1 (es) | 1987-05-16 |
DE3507876A1 (de) | 1986-09-11 |
DE3507876C2 (zh) | 1988-12-08 |
EP0193751A3 (en) | 1988-01-13 |
JPS61219754A (ja) | 1986-09-30 |
EP0193751B1 (de) | 1990-04-25 |
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