CN110873240A - 一种复合型防腐、耐磨、耐高温管 - Google Patents
一种复合型防腐、耐磨、耐高温管 Download PDFInfo
- Publication number
- CN110873240A CN110873240A CN201911168118.4A CN201911168118A CN110873240A CN 110873240 A CN110873240 A CN 110873240A CN 201911168118 A CN201911168118 A CN 201911168118A CN 110873240 A CN110873240 A CN 110873240A
- Authority
- CN
- China
- Prior art keywords
- resistant
- temperature
- ceramic
- wear
- corrosion
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/22—Pipes composed of a plurality of segments
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/14—Coatings characterised by the materials used by ceramic or vitreous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
本发明涉及一种复合型防腐、耐磨、耐高温管,包括金属管体,所述金属管体内套设有陶瓷管,所述陶瓷管与金属管体之间通过无机层固定;所述陶瓷管由多个瓷片拼接而成,所述相邻瓷片之间通过耐高温耐腐蚀粘接剂粘接固定。本发明能够防腐、耐磨、耐高温,抗冲击性能好,生产过程简单,成本低廉。
Description
技术领域
本发明涉及特种管技术领域,具体涉及一种复合型防腐、耐磨、耐高温管。
背景技术
特种管是用于特殊环境的管道,与普通管道不同,特种管道的使用环境决定了,其需要具有特殊性能,如耐高温、耐磨、耐冲击等。比如水泥窑三次风管,就是用于水泥窑的一种特种管道,水泥窑运行时,管道内部位温度变化大,管内风速较高,热气流内含大量细小的熟料颗粒,管道长期直接受到含尘热气流的冲刷与侵蚀。再比如输油管道,用于输送原油,长期在高压、腐蚀条件下工作。这些特殊场景,均需要用到特种管。
目前,对于特种管而言,一般采用铸铁或者不锈钢管体,内表面会浇筑一些耐磨、耐高温或耐腐蚀的浇注料形成内面,以应对不同场景的需要。最常见的实在金属管内复合陶瓷管。陶瓷具有耐磨、耐高温和防腐蚀的优点,使复合管具有优异的性能。然而现有的陶瓷复合管制备工艺复杂,陶瓷管加工难度大,成本及其高昂。其次,现有的陶瓷复合管抗冲击能力较差,内陶瓷壁易破裂、损坏脱落,使用寿命较短。
发明内容
本发明针对现有技术中存在的技术问题,提供一种复合型防腐、耐磨、耐高温管,能够防腐、耐磨、耐高温,抗冲击性能好,生产过程简单,成本低廉。
本发明解决上述技术问题的技术方案如下:一种复合型防腐、耐磨、耐高温管,包括金属管体,所述金属管体内套设有陶瓷管,所述陶瓷管与金属管体之间通过无机层固定;所述陶瓷管由多个瓷片拼接而成,所述相邻瓷片之间通过耐高温耐腐蚀粘接剂粘接固定。
本发明的有益效果是:本发明通过在金属管体内套设陶瓷管,且陶瓷管由多个瓷片拼接而成,加工生产难度低,制造成本低廉;本发明通过多个陶瓷片拼接成管的方式制作陶瓷内管,将陶瓷管分解成为了一个个单独的陶瓷片,极大减小了单个陶瓷部件的面积,抗冲击性能得到了极大提高;本发明瓷片之间通过耐高温耐腐蚀粘接剂粘接,加工完成后粘接剂可以作为填料将瓷片之间的缝隙完全填充,整体密封性能好,防渗漏能力强。
在上述技术方案的基础上,本发明还可以做如下改进。
进一步,所述耐高温耐腐蚀粘接剂为有机硅类胶、酚醛树脂胶、耐温环氧胶、聚酰亚胺胶中的一种。
采用上述进一步方案的有益效果是:粘接性能好,耐高温、耐腐蚀性好。
进一步,所述瓷片一侧开设有结合槽,另一侧设置有与结合槽形状相适配的凸起。
优选的,所述结合槽的尺寸大于凸起的尺寸。
采用上述进一步方案的有益效果是:能够保证结合拼接更为便捷,同时可以根据需要调节瓷片间的间隙,保证装配具有较大余量。
进一步,所述陶瓷管外侧包覆有一层有机防腐膜。
优选的,所述陶瓷管外侧包覆有一层聚氨酯膜。
采用上述进一步方案的有益效果是:设置有机防腐膜,优选选择聚氨酯膜,能够有效密封陶瓷管,防止渗漏,同时还能起到保护、防腐的效果,在装配时,膜还能够一定程度提供结合力,起到对陶瓷管定型的效果。
进一步,所述瓷片为氧化铝陶瓷瓷片。
优选的,所述瓷片的成分为SiO2 4~5%、ZrO2 1.2~2%、CaO 1~1.8%、MgO 0.5~0.8%、SiC 1~1.6%、TiO2 0.05~0.15%,其余为Al2O3。
优选的,所述瓷片由各成分的粉末均匀混合成型后,高温烧结制成,各成分的粉末粒度小于50μm。
采用上述进一步方案的有益效果是:采用氧化铝陶瓷,成本更为低廉,性能更好,增加其它金属氧化物,可以提高陶瓷的抗冲击和耐腐蚀性能,同时使烧结的陶瓷表面形成具有一定粗糙度的釉面,便于陶瓷片附着在金属管体内,提高抗脱落性能,上述部分金属氧化物的加入,还能作为填料,填充陶瓷烧结过程中形成的气泡,使陶瓷瓷片更为密实,抗冲击性能更好。
进一步,所述无机层为水泥层。
附图说明
图1为本发明的结构示意图;
图2为本发明图1中A处的局部放大结构示意图;
图3为本发明瓷片的装配结构示意图;
图中:1、金属管体,2、陶瓷管,2a、瓷片,2b、凸起,2c、结合槽,3、无机层,4、有机防腐膜。
具体实施方式
以下结合附图对本发明的原理和特征进行描述,所举实例只用于解释本发明,并非用于限定本发明的范围。
在本发明的描述中,还需要说明的是,除非另有明确的规定和限定,术语“设置”、“安装”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
如图1、图2所示,本发明设计的一种复合型防腐、耐磨、耐高温管,包括金属管体1,所述金属管体1内套设有陶瓷管2,所述陶瓷管2与金属管体1之间通过无机层3固定。所述陶瓷管2由多个瓷片2a拼接而成,所述相邻瓷片2a之间通过耐高温耐腐蚀粘接剂粘接固定。
上述金属管体1、陶瓷管2和无机层3是本发明的基本结构构架,目的是使得金属管体1和陶瓷管2通过无机层3结合在一起,并且结合部分没有缝隙。所述金属管体1、陶瓷管2和无机层3可以是多种形式的,不拘泥于图1中的形状。
本发明的瓷片2a可以采用梯形形状,还可以设置卡接结构用于结合。本发明的无机层3优选采用水泥层。
所述耐高温耐腐蚀粘接剂优选有机硅类胶、酚醛树脂胶、耐温环氧胶、聚酰亚胺胶中的一种。本发明采用耐高温耐腐蚀粘接剂将瓷片2a粘接,拼接成陶瓷管2,耐高温耐腐蚀粘接剂除了粘接作用外,还可以作为填料,填充瓷片2a之间的结合缝隙,起到防渗漏的作用。此外,由于有粘接剂作为填料,可以允许瓷片2a之间在装配时具有一定的间隙,以获得较大的装配余量,更利于拼接操作和实际装配。
如图3所示,本发明还提供了改进的技术方案,在改进的技术方案中,所述瓷片2a一侧开设有结合槽2c,另一侧设置有与结合槽2c形状相适配的凸起2b。
优选的,所述结合槽2c的尺寸大于凸起2b的尺寸。
上述的凸起2b和结合槽2c是为了让瓷片2a拼接时更容易定位和便于结合,同时也是起到一定的密封作用,可以一定程度防止成型的陶瓷管2渗漏。所述凸起2b和结合槽2c可以是多种形式的,不拘泥于图3中的形状。比如,凸起2b和结合槽2c的截面形状可以是三角形、半圆形、半椭圆形等形状。
上述的结合槽2c和凸起2b的的尺寸设置,则是为了方便装配,同时可以根据需要调节瓷片2c间的间隙,保证装配具有较大余量。
如图2所示,本发明还提供了另一种改进的技术方案,在改进的技术方案中,所述陶瓷管2外侧包覆有一层有机防腐膜4。
优选的,所述陶瓷管2外侧包覆有一层聚氨酯膜。
上述两种改进的技术方案能够有效密封陶瓷管,防止渗漏,同时还能起到保护、防腐的效果,在装配时,膜还能够一定程度提供结合力,起到对陶瓷管2定型的效果。
本发明的瓷片2a是本发明的核心部件,优选采用成本低廉,易烧结成型的氧化铝陶瓷。
为了增加本发明陶瓷管2的抗冲击性能,需要烧制的瓷片2a中不含有或者少含有气泡,降低发生破损的几率。
本发明的瓷片2a优选采用以下成分:SiO2 4~5%、ZrO2 1.2~2%、CaO 1~1.8%、MgO 0.5~0.8%、SiC 1~1.6%、TiO2 0.05~0.15%,其余为Al2O3。其中Al2O3的含量优选在90%以上。
本发明的瓷片2a优选采用以下方法制备:
首先选取粒度在50μm以下的各成分原料;然后将各成分原料按照成分配比混合均匀;而后将混均的粉料直接压制成瓷片2a形状或者加入结合剂混均后塑成瓷片2a形状;最后将成型的瓷片2a坯胎高温烧结成瓷片,烧结温度在1200℃以上。
本发明采用上述方式制备瓷片2a,是基于氧化铝陶瓷在烧结过程中易起泡的特性。这样会导致陶瓷的耐冲击性能低下。而本发明采用上述方式,增加了其它金属氧化物,可以提高陶瓷的抗冲击和耐腐蚀性能,同时使烧结的陶瓷表面形成具有一定粗糙度的釉面,便于陶瓷片附着在金属管体内,提高抗脱落性能和与无机层3结合的牢固度。SiO2、CaO和SiC的加入,还能作为填料,填充陶瓷烧结过程中形成的气泡,使陶瓷瓷片更为密实,抗冲击性能更好。
本发明的管可以在多种特殊场景应用,比如可以用作脱硫系统的管道,可以作为烟气输送管道,可以用作输油管道,还可以作为水泥窑的三次风管,应用范围极为广泛,几乎任何耐磨、耐高温和/或防腐的场景都可以使用本发明的管。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种复合型防腐、耐磨、耐高温管,包括金属管体(1),其特征在于:所述金属管体(1)内套设有陶瓷管(2),所述陶瓷管(2)与金属管体(1)之间通过无机层(3)固定;所述陶瓷管(2)由多个瓷片(2a)拼接而成,所述相邻瓷片(2a)之间通过耐高温耐腐蚀粘接剂粘接固定。
2.根据权利要求1所述的复合型防腐、耐磨、耐高温管,其特征在于:所述耐高温耐腐蚀粘接剂为有机硅类胶、酚醛树脂胶、耐温环氧胶、聚酰亚胺胶中的一种。
3.根据权利要求1所述的复合型防腐、耐磨、耐高温管,其特征在于:所述瓷片(2a)一侧开设有结合槽(2c),另一侧设置有与结合槽(2c)形状相适配的凸起(2b)。
4.根据权利要求3所述的复合型防腐、耐磨、耐高温管,其特征在于:所述结合槽(2c)的尺寸大于凸起(2b)的尺寸。
5.根据权利要求1所述的复合型防腐、耐磨、耐高温管,其特征在于:所述陶瓷管(2)外侧包覆有一层有机防腐膜(4)。
6.根据权利要求5所述的复合型防腐、耐磨、耐高温管,其特征在于:所述陶瓷管(2)外侧包覆有一层聚氨酯膜。
7.根据权利要求1所述的复合型防腐、耐磨、耐高温管,其特征在于:所述瓷片(2a)为氧化铝陶瓷瓷片。
8.根据权利要求7所述的复合型防腐、耐磨、耐高温管,其特征在于:所述瓷片(2a)的成分为SiO2 4~5%、ZrO2 1.2~2%、CaO 1~1.8%、MgO 0.5~0.8%、SiC 1~1.6%、TiO20.05~0.15%,其余为Al2O3。
9.根据权利要求8所述的复合型防腐、耐磨、耐高温管,其特征在于:所述瓷片(2a)由各成分的粉末均匀混合成型后,高温烧结制成,各成分的粉末粒度小于50μm。
10.根据权利要求1所述的复合型防腐、耐磨、耐高温管,其特征在于:所述无机层(3)为水泥层。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911168118.4A CN110873240A (zh) | 2019-11-25 | 2019-11-25 | 一种复合型防腐、耐磨、耐高温管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911168118.4A CN110873240A (zh) | 2019-11-25 | 2019-11-25 | 一种复合型防腐、耐磨、耐高温管 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110873240A true CN110873240A (zh) | 2020-03-10 |
Family
ID=69718190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911168118.4A Pending CN110873240A (zh) | 2019-11-25 | 2019-11-25 | 一种复合型防腐、耐磨、耐高温管 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110873240A (zh) |
-
2019
- 2019-11-25 CN CN201911168118.4A patent/CN110873240A/zh active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020259343A1 (zh) | 一种用于抵御酸性以及高温环境的渣浆泵及其制备方法 | |
CN113354427B (zh) | 一种耐火材料的热修补料 | |
CN110939798B (zh) | 一种复合型防腐、耐磨、耐高温管的制备方法 | |
CN211118058U (zh) | 一种超细陶瓷、金属复合管 | |
CN211118071U (zh) | 一种复合型防腐、耐磨、耐高温管 | |
CN111484346A (zh) | 用于高炉撇渣器的氮化硅结合浇注料及高炉撇渣器 | |
CN211118057U (zh) | 一种耐磨陶瓷复合双套管 | |
CN110873240A (zh) | 一种复合型防腐、耐磨、耐高温管 | |
CN212536689U (zh) | 一种耐磨陶瓷复合风门 | |
CN212298071U (zh) | 一种陶瓷复合型三通管 | |
CN113354425B (zh) | 一种适用于热风炉球顶的耐酸喷涂料 | |
CN110864166B (zh) | 一种超细陶瓷、金属复合管及其制备方法 | |
CN110465137A (zh) | 一种高温尘硝一体净化陶瓷滤芯的法兰及其制备工艺 | |
KR100756527B1 (ko) | 화력발전소의 미분탄 및 석탄회 이송용 굴곡 이송관 | |
CN211232928U (zh) | 一种耐磨陶瓷复合烟道支撑组件 | |
CN211821107U (zh) | 一种管径渐变的耐磨防腐管 | |
CN105315843A (zh) | 一种高温耐磨陶瓷涂料 | |
CN110937883A (zh) | 一种无水泥铁沟浇注料 | |
CN113636830B (zh) | 一种含有回收刚玉浇注料的自流浇注料及其制备方法 | |
KR20190069259A (ko) | 고로슬래그 미분말 및 산화아연을 유효성분으로 포함하는 친환경 시멘트 조성물, 및 이의 제조방법 | |
CN104693683A (zh) | 陶瓷防腐材料及其使用方法 | |
CN211225023U (zh) | 一种耐磨陶瓷复合落煤管 | |
JP2012062232A (ja) | 通気性耐火物及びその製造方法 | |
CN211755922U (zh) | 一种耐磨陶瓷复合粗粉分离器 | |
CN211118224U (zh) | 一种耐磨陶瓷复合膨胀节 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |