CN1234486C - 高气孔率的烧结物体及其制造方法和用途 - Google Patents
高气孔率的烧结物体及其制造方法和用途 Download PDFInfo
- Publication number
- CN1234486C CN1234486C CNB028064097A CN02806409A CN1234486C CN 1234486 C CN1234486 C CN 1234486C CN B028064097 A CNB028064097 A CN B028064097A CN 02806409 A CN02806409 A CN 02806409A CN 1234486 C CN1234486 C CN 1234486C
- Authority
- CN
- China
- Prior art keywords
- fiber
- agglomerate bodies
- layer
- high porosity
- described high
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005245 sintering Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 229920000914 Metallic fiber Polymers 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
-
- 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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
- B01D39/202—Glass or glassy material the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2041—Metallic material the material being filamentary or fibrous
- B01D39/2044—Metallic material the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
- B01D39/2086—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/062—Fibrous particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/002—Manufacture of articles essentially made from metallic fibres
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D3/00—Burners using capillary action
- F23D3/02—Wick burners
- F23D3/08—Wick burners characterised by shape, construction, or material, of wick
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D3/00—Burners using capillary action
- F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Civil Engineering (AREA)
- Powder Metallurgy (AREA)
- Catalysts (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Materials For Medical Uses (AREA)
Abstract
本发明涉及高气孔率的烧结物体,它具有至少一个由可烧结材料制成的并含有纤维(1)的层,所述纤维具有半椭圆形横截面并且它们在一侧上是隆弯的并在另一侧上基本是平面的,所述纤维具有一个短于1mm的主轴线(2)和一个短于200μm的副轴线(3),其中,该主轴线比该副轴线长。此外,本发明涉及该高气孔率的烧结物体的制造方法及其应用。
Description
技术领域
本发明涉及高气孔率的烧结物体及其制造方法和其应用,该物体包括至少一层含纤维的可烧结材料。
背景技术
高气孔率的烧结物体用于各种不同的技术目的。它们尤其被用作燃烧元件,在这里,它们由于高气孔率而能够暂时接收液态燃料并在元件表面上将其蒸发。这种燃烧元件必须相应地承受高温。尤其是汽车的稳定加热器也需要高气孔率的烧结物体。
现有技术公开了用可烧结金属粉末制造高气孔率的物体。当然,用这种金属粉末只能获得略大于约60%的气孔率值。为达到更高的气孔率,还知道了使用可烧结的金属纤维。这种可烧结的金属纤维可以随后被织成无纺布并接着进行烧结。这种无纺布的气孔率可接近90%。
对高气孔率物体的可能应用且尤其是作为燃烧元件来说,要求良好的烧损性能和火焰附着值。该元件同时必须有高气孔率。然而,物体的气孔率越高,可以达到的火焰附着值和物体的烧损性能就越差。
发明内容
本发明的任务是提供不具有上述缺点的高气孔率的烧结物体。
按照本发明,如此完成该任务,即提供一种高气孔率的烧结物体,它具有至少一个由可烧结材料制成的并含有纤维的层,所述纤维具有半椭圆形横截面并且它们在一侧上是隆弯的并在另一侧上基本是平面的,所述纤维具有一个短于1mm的主轴线和一个短于200μm的副轴线,其中,该主轴线比该副轴线长。与背景技术所公开的由普通金属纤维且尤其是被加工成无纺布的这些纤维制成的烧结物体相比,这种高气孔率的烧结物体具有明显改善的烧损性能和火焰附着值。与或许被加工成无纺布的和在现有技术中公开的金属纤维相比,这些纤维具有较大的比表面,这样一来,获得了更好的性能。所用纤维有利地具有尖锐的棱边,这些棱边尤其在被用作促进燃烧的元件时且例如对使液态燃料蒸发有一定的积极作用。
本发明意义上的可烧结材料是指那些由金属、金属氧化物、陶瓷和/或塑料制成的材料。本发明意义上的可用金属材料不仅是指由纯金属构成的材料,而且也指由金属合金和/或不同金属和金属合金组成的混合材料构成的材料,其中尤其包括钢并最好为铬镍钢、青铜、镍基合金、耐盐酸镍基合金、铬镍铁合金等,其中混合材料也可以包含高熔点成份如铂。所用纤维可以是金属的或陶瓷的。作为纤维,特别优选地使用铁材料(例如按材料标准1.0495,1.4113或1.4841)和/或以铁-铬-铝或镍-铝为基础的合金。优选含铝合金,这是因为,这种合金具有高耐热性和高耐蚀性。铝含量优选为约10%-40%(重量%),这是相对合金中的金属总量而言。根据本发明的高气孔率的烧结物体进最好都是由金属纤维构成。但是,在本发明的意义上,由含纤维的粉末构成的混合物也可被用作可烧结材料。
若在本发明物体里的纤维在它的两侧上是隆弯的,则其横断面大致可以描述为椭圆形。若使这样一种纤维沿其纵轴线并朝向主轴线方向地被分开,就得到大致成半椭圆形的纤维。这种只在一侧隆弯的纤维是特别优选的,这是因为这种纤维具有高得多的比表面积,因此,大大提高了所要求的烧损性能及火焰附着值。因而,这种纤维具有一个平坦侧面和一个隆弯侧面。
特别优选的是,该纤维的主轴线小于约500μm,副轴线小于约100μm。主轴线和副轴线的长度是借助放大倍数为100至约500的显微镜在纤维横断面磨片上测定的。
此外,所用纤维优选地具有各种不同的长度,因而在烧结时就生成一种很稳定的纤维矩阵。这种纤维矩阵在本发明的另一优选实施方案中可以通过使用至少简单地沿纵轴线弯折的纤维来进一步改善。这样,这些纤维就能更好地相互钩结,从而进一步提高纤维矩阵的稳定性。折弯纤维占所用纤维总量的比例最好在一个至少为20%(重量%)的范围内。
在本发明的另一个实施方案中,这些纤维都围绕其纵轴线扭转。扭转纤维占纤维总量的比例至少达到15%(重量%),尤其优选为40%-60%(重量%)。纤维最好围绕纵轴线扭转半圈,更好的是,它们围绕纵轴线扭转一圈以上。
本发明物体更有利地具有较高的机械性能,这是因为通过纤维围绕其纵轴线的扭转提供了更好的烧结接触。另外,本发明的物体具有更好的烧损性能。
还优选的是,纤维副轴线的长度从中间起向着两端减小。例如,在这里,在纤维中央的副轴线长度大致在100μm范围内,相反,在纤维两端上的副轴线长度大致在20μm范围内。在纤维中央的副轴线长度与在纤维端部的副轴线长度之比优选大于2∶1,进一步优选为大于3∶1。在本发明物体中,这种纤维的比重优选达到至少20%(重量%)并进一步优选在15%-50%(重量%)的范围内。
在本发明的另一实施方案中,这些隆弯侧具有沿纤维纵轴线的横向延伸的空隙。由于这些例如可以设计成凹槽状的空隙,纤维的隆弯侧具有一个成波浪形的表面。这样一来,有利地提高了在本发明物体中使用的纤维的比表面积,因而它具有进一步改善的烧损性能和火焰附着值。
还优选的是,该物体具有至少另一个未烧结层。所述的另一个未烧结层例如可以是一个孔板或一个金属丝布等类似物,它优选地由与可烧结材料相同的材料且尤其是纤维制成。
最后,本发明的物体有利地具有约5-150μm并最好是10-100μm的孔隙分布。这种孔隙分布用一孔隙计并按照标准ASSME 12/94来测定。此外,本发明的物体最好具有至少为80%的气孔率并最好是大于90%且更好的是大于93%的气孔率,同时,它具有至少50g/m2的表面重量。本发明的物体不仅具有高气孔率,而且也具有上述的大的比表面积,它们对本发明物体的烧损性能产生有利影响。此外,尤其是在用作如燃烧元件或灯芯元件时,本发明物体可以吸收大量燃烧液体。
此外,本发明还涉及一种制造高气孔率的烧结物体的方法,该物体具有至少一层含有纤维的可烧结材料,其中
-在第一步中,使纤维缩短到最长20mm的长度,
-在第二步中,以0.2-0.4g/cm2的松装比容堆覆该材料;
-在第三步中,烧结该材料。
通过在第一步中进行的纤维缩短,有利地获得了要制造物体的的高机械稳定性和均匀性。用有这种长度的纤维并且在松装比容为0.2-0.4g/cm2的情况下,就可以产生出具有高机械强度并同时有较高均匀性的物体。此外,最好规定,这些纤维经过分选地在第二步里进行堆覆。纤维分选是在装入模时通过使定向机械振动作用于料堆上来实现的。借助定向机械振动作用产生的料堆搅拌例如可以通过以下方法实现,即纤维经过一个振动输送机从料堆被送至模。也可以规定,借助料堆搅拌的分选可以在装入模时在一个筛面上实现。根据模的不同实施形式,在这里,可以设置一个振动筛面或一个转动筛面,在该筛面上放置料堆。在这种情况下,网眼大小约为0.5-5mm粗网眼筛面就足够了。料堆在筛面上的滚动造成总是只在筛眼区域中纤维离开料堆并落到模里。
还最好规定:在对所用材料且尤其是纤维进行分选时,使模相对材料入口移动。在材料入口如一个振动运输槽的卸料端和筛子漏口之间的相对运动取决于要制造的多孔物体的几何形状。在这里,该模可以旋转或相对纤维入口在一个平面里来回运动。如果要制造的多孔物体必须具有连接元件以便固定在相应外壳上,则在本发明的其它技术方案里规定了:至少有一个要与多孔物体连接起来的连接元件作为模部件地被放置到模中并一起进行烧结。
还优选的是,在第二步之后,还在另一步骤中压实该材料。因而产生稳定的多孔未烧结体,它接着在第三步中被烧结。未烧结体可以单独地继续进行处理。这样的未烧结体具有高的尺寸稳定性并可以随后实际上无明显收缩地被烧结成一个坚固稳定的多孔物体。
还优选的是,该材料在第二步里被放置在另一未烧结层上并接着与这个层在第三步里进行烧结。这样,在可烧结材料层和未烧结层之间获得牢固固定。这两层最好由相同材料组成。尤其是所述的另一层可以是一孔板或是金属丝布。
最后,本发明涉及本发明物体可用作在尤其是汽车的稳定加热装置和/或附加加热装置里的蒸发器件或灯芯元件,用作燃烧器中的火焰稳定器,用作热分配板,用做燃烧促进元件,用作热交换器和/或多相反应的催化器。在所有上述应用中,本发明的物体由于其与现有技术所公开的多孔物体相比有大得多的比表面积,因而具有出色的性能,尤其是火焰附着性能。以本发明物体作为催化器的多相反应因这些用于制造本发明物体的纤维具有许多尖角和棱边而使反应速度快了许多。在本发明的物体中,在上述应用中是十分重要的烧损性能明显提高了。
附图说明
本发明的这种优点和其它优点根据所附简图加以详细叙述。所示为:
图1:一种由按本发明的物体所制成的燃烧元件的比例为68.9∶1的显微放大图;
图2:通过一个使用在燃烧元件里的纤维的横断面示意图。
具体实施方式
在图1中,用标记1整体表示的物体(燃烧元件)具有纤维,这些纤维一侧隆弯,但另一侧基本上是平面的。因而,它们的横断面对应于半椭圆。它们在隆弯表面上具有槽形空隙(亮区)。另外,可以看到沿着纤维纵轴线的折弯和扭转。
图2以草图示出在物体1里使用的纤维构造,在这里,可清楚看到主轴线2和副轴线3。
图1所示的燃烧元件具有一个由可烧结材料制成的第一层,即由材料1.4841的纤维制成的层,该层布置在另一层上,即具有2mm网眼孔径的金属丝布上并与烧结在一起。作者里,调整出150g/m2的含纤维层的表面重量。这些纤维的主轴线长度为350μm,副轴线长度为50μm。纤维长度约为5-15mm。借助振动输送机堆覆到金属丝布上的纤维料堆接着在约1280℃温度下在真空里与金属丝布烧结在一起,从而制成一种根据本发明的物体,该物体的气孔率大于90%,孔隙分布在12μm-100μm的范围内。
通过本发明,提供了高气孔率的烧结物体,与从现有技术中公开的普通多孔物体相比,这些物体尤其是在被用作燃烧元件或灯芯元件时具有更高的烧损性能和更好的火焰附着值,同时又有保持不变的高气孔率。
Claims (11)
1.高气孔率的烧结物体,它具有至少一个由可烧结材料制成的并含有纤维(1)的层,所述纤维具有半椭圆形横截面并且它们在一侧上是隆弯的并在另一侧上基本是平面的,所述纤维具有一个短于1mm的主轴线(2)和一个短于200μm的副轴线(3),其中,该主轴线比该副轴线长。
2.按权利要求1所述的高气孔率的烧结物体,其特征在于,所述纤维(1)绕纤维纵轴线扭转。
3.按权利要求1或2所述的高气孔率的烧结物体,其特征在于,所述纤维(1)的该副轴线(3)的长度从中心起向两端减小。
4.按权利要求1或2所述的高气孔率的烧结物体,其特征在于,所述隆弯侧具有沿该纤维(1)的纵轴线的横向延伸的空隙。
5.按权利要求1或2所述的高气孔率的烧结物体,其特征在于,该物体具有至少另一个未烧结的层。
6.按权利要求1或2所述的高气孔率的烧结物体,其特征在于,该物体的气孔分布为5-150μm。
7.按权利要求6所述的高气孔率的烧结物体,其特征在于,所述物体的气孔分布为10-100μm。
8.制造如权利要求1所述的高气孔率物体的方法,该物体具有至少一个由可烧结材料制成的并含纤维(1)的层,其中,
-在第一步里,使所述纤维(1)缩短到最长20mm的长度;
-在第二步里,按照松装比容为0.2-0.4g/cm2堆覆该材料;
-在第三步里,烧结该材料。
9.按权利要求8所述的方法,其特征在于,在第二步之后,还在另一步骤中压实该材料。
10.按权利要求8或9所述的方法,其特征在于,该材料在第二步里被堆覆在至少另一个未烧结的层上并接着在第三步里与这个层烧结在一起。
11.将如权利要求1至7之一所述的高气孔率的烧结物体用作在稳定加热装置和/或附加加热装置里的蒸发器件或灯芯元件、燃烧器里的火焰稳定器、热分配器板、燃烧促进元件、热交换器和/或多相反应的催化器的用途。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10111892.9 | 2001-03-13 | ||
DE10111892A DE10111892C1 (de) | 2001-03-13 | 2001-03-13 | Gesinterter, hochporöser Körper |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1527752A CN1527752A (zh) | 2004-09-08 |
CN1234486C true CN1234486C (zh) | 2006-01-04 |
Family
ID=7677192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028064097A Expired - Fee Related CN1234486C (zh) | 2001-03-13 | 2002-02-16 | 高气孔率的烧结物体及其制造方法和用途 |
Country Status (11)
Country | Link |
---|---|
US (2) | US6936088B2 (zh) |
EP (1) | EP1370381B1 (zh) |
JP (1) | JP2004525261A (zh) |
KR (1) | KR100550398B1 (zh) |
CN (1) | CN1234486C (zh) |
AT (1) | ATE276065T1 (zh) |
BR (1) | BR0208043A (zh) |
DE (2) | DE10111892C1 (zh) |
ES (1) | ES2229124T3 (zh) |
MX (1) | MXPA03007399A (zh) |
WO (1) | WO2002072298A1 (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10111892C1 (de) * | 2001-03-13 | 2002-08-22 | Gkn Sinter Metals Gmbh | Gesinterter, hochporöser Körper |
DE10302475B4 (de) * | 2003-01-23 | 2005-03-17 | Gkn Sinter Metals Gmbh | Vorrichtung zur Herstellung von Formteilen |
DE102004057270B4 (de) * | 2004-11-26 | 2006-08-17 | Webasto Ag | Brennstoffverdampferelement für ein Heizgerät |
DE102004057268A1 (de) * | 2004-11-26 | 2006-06-08 | Webasto Ag | Heizgerät und Verfahren zur Herstellung desselben |
DE102005020147A1 (de) * | 2005-04-29 | 2006-11-09 | J. Eberspächer GmbH & Co. KG | Verdampferanordnung und Verfahren zur Herstellung einer Verdampferanordnung |
EP1662199B1 (de) * | 2004-11-30 | 2017-03-01 | Eberspächer Climate Control Systems GmbH & Co. KG | Verdampferanordnung und verfahren zur herstellung einer verdampferanordnung |
DE102005036768A1 (de) * | 2005-06-23 | 2006-12-28 | Webasto Ag | Heizgerät mit thermoelektrischer Einrichtung |
KR101032409B1 (ko) * | 2010-11-24 | 2011-05-04 | 나정민 | 악보디스플레이장치 |
DE102011103294A1 (de) * | 2011-05-26 | 2012-11-29 | Volkswagen Aktiengesellschaft | Verfahren zum Herstellen von Metalltabletten und Verfahren zum Herstellen von Metallgussbauteilen |
DE102012005323B4 (de) | 2012-03-19 | 2015-05-13 | Gernot Heine | Apparatur für kiefergelenksbezügliche Zahnstellungskorrekturen und Verfahren zur Herstellung der Apparatur |
DK3297992T3 (da) | 2015-05-22 | 2020-04-20 | Chong Kun Dang Pharmaceutical Corp | Heterocykliske alkylderivatforbindelser som selektive histondeacetylase-inhibitorer og farmaceutiske sammensætninger omfattende samme |
JP7524098B2 (ja) | 2021-02-10 | 2024-07-29 | 東邦チタニウム株式会社 | チタン系多孔質体の製造方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1911941A1 (de) * | 1969-03-10 | 1970-09-24 | Deutsche Edelstahlwerke Ag | Verfahren zur Herstellung von hochporoesen Sinterformkoerpern |
US4729871A (en) * | 1985-06-21 | 1988-03-08 | Hiroshi Kawaguchi | Process for preparing porous metal plate |
CA2027687C (en) * | 1989-11-14 | 2002-12-31 | Douglas C. Sundet | Filtration media and method of manufacture |
JP2550419B2 (ja) * | 1990-01-31 | 1996-11-06 | 日本鋼管株式会社 | 表面燃焼バーナ |
DE4401799C1 (de) * | 1994-01-22 | 1995-06-14 | Webasto Thermosysteme Gmbh | Verdampfungsbrenner für ein Heizgerät |
DE19507645C1 (de) * | 1995-03-04 | 1996-08-08 | Inst Umwelttechnologie Und Umw | Verfahren zur Herstellung eines Filters zur Fluidreinigung und ein nach diesem Verfahren hergestellter Filter |
JP3687215B2 (ja) * | 1995-09-25 | 2005-08-24 | 新東工業株式会社 | 耐熱金属繊維焼結体の製造方法 |
US6152978A (en) * | 1996-02-02 | 2000-11-28 | Pall Corporation | Soot filter |
CN1198113A (zh) * | 1996-07-29 | 1998-11-04 | 松下电器产业株式会社 | 金属多孔体及其制造方法 |
BE1010866A3 (nl) * | 1997-01-17 | 1999-02-02 | Bekaert Sa Nv | Metaalvezelagglomeraat en werkwijze voor het vervaardigen ervan. |
DE19736971A1 (de) * | 1997-08-25 | 1999-03-04 | Sinter Metals Krebsoege Filter | Wärmeisolierender Überzug für ein Tragelement |
BE1011478A3 (nl) * | 1997-10-02 | 1999-10-05 | Bekaert Sa Nv | Brandermembraan omvattende een vernaald metaalvezelvlies. |
CN1140481C (zh) * | 1997-10-09 | 2004-03-03 | 日本碍子株式会社 | 纤维复合材料及其制备方法 |
DE59802992D1 (de) * | 1998-04-17 | 2002-03-14 | Gkn Sinter Metals Gmbh | Verfahren zur herstellung einer gesinterten metallschicht mit offener porosität |
ITMI981245A1 (it) * | 1998-06-03 | 1999-12-03 | Getters Spa | Processo per la produzione di pannelli in fibre metalliche funzionalizzati con catalizzatori e pannelli cosi' prodotti |
DE19924675A1 (de) * | 1999-05-29 | 2000-11-30 | Gkn Sinter Metals Filters Gmbh | Sintermetallurgisches Verfahren zur Herstellung eines Filterkörpers aus schmelzextrahierten Metallfasern |
DE19963698A1 (de) * | 1999-12-29 | 2001-07-12 | Gkn Sinter Metals Gmbh | Dünne poröse Schicht mit offener Porosität und Verfahren zu ihrer Herstellung |
US6558810B2 (en) * | 2000-09-05 | 2003-05-06 | Paul W. Garbo | Forming sintered metal fiber porous mats |
DE10049759C1 (de) * | 2000-09-29 | 2002-04-04 | Fraunhofer Ges Forschung | Poröse Bauteiele sowie ein Verfahren zu deren Herstellung |
US20020142202A1 (en) * | 2001-02-23 | 2002-10-03 | Lin-Feng Li | Fibrous electrode for a metal air electrochemical cell |
DE10111892C1 (de) * | 2001-03-13 | 2002-08-22 | Gkn Sinter Metals Gmbh | Gesinterter, hochporöser Körper |
-
2001
- 2001-03-13 DE DE10111892A patent/DE10111892C1/de not_active Expired - Fee Related
-
2002
- 2002-02-16 ES ES02722088T patent/ES2229124T3/es not_active Expired - Lifetime
- 2002-02-16 WO PCT/EP2002/001678 patent/WO2002072298A1/de active IP Right Grant
- 2002-02-16 MX MXPA03007399A patent/MXPA03007399A/es active IP Right Grant
- 2002-02-16 EP EP02722088A patent/EP1370381B1/de not_active Expired - Lifetime
- 2002-02-16 BR BR0208043-5A patent/BR0208043A/pt not_active IP Right Cessation
- 2002-02-16 KR KR1020037011800A patent/KR100550398B1/ko not_active IP Right Cessation
- 2002-02-16 AT AT02722088T patent/ATE276065T1/de not_active IP Right Cessation
- 2002-02-16 DE DE50201030T patent/DE50201030D1/de not_active Expired - Fee Related
- 2002-02-16 CN CNB028064097A patent/CN1234486C/zh not_active Expired - Fee Related
- 2002-02-16 JP JP2002571249A patent/JP2004525261A/ja active Pending
-
2003
- 2003-09-12 US US10/661,694 patent/US6936088B2/en not_active Expired - Fee Related
-
2005
- 2005-06-14 US US11/152,658 patent/US20050242478A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
ES2229124T3 (es) | 2005-04-16 |
US20040166011A1 (en) | 2004-08-26 |
WO2002072298A1 (de) | 2002-09-19 |
DE10111892C1 (de) | 2002-08-22 |
EP1370381B1 (de) | 2004-09-15 |
ATE276065T1 (de) | 2004-10-15 |
BR0208043A (pt) | 2004-02-25 |
KR20030081508A (ko) | 2003-10-17 |
DE50201030D1 (de) | 2004-10-21 |
CN1527752A (zh) | 2004-09-08 |
US20050242478A1 (en) | 2005-11-03 |
US6936088B2 (en) | 2005-08-30 |
JP2004525261A (ja) | 2004-08-19 |
MXPA03007399A (es) | 2004-03-16 |
EP1370381A1 (de) | 2003-12-17 |
KR100550398B1 (ko) | 2006-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1234486C (zh) | 高气孔率的烧结物体及其制造方法和用途 | |
DE60127107T2 (de) | Verfahren zur herstellung von einer abrasions- und hochtemperaturbeständigen beschichtung und material, das verdichtete geometrische hohlkörper enthält | |
US7754332B2 (en) | Thermal insulation structures comprising layers of expanded graphite particles compressed to different densities and thermal insulation elements made from these structures | |
AU762158B2 (en) | Flexible graphite article and method of manufacture | |
US8642137B2 (en) | Ceramic honeycomb structure and its production method | |
CN105967713B (zh) | 一种梯度孔隙结构的陶瓷纤维多孔燃烧介质的制备方法 | |
JPH0549633B2 (zh) | ||
CN101088190A (zh) | 用于燃料电池的组件的制备方法 | |
JP3491902B2 (ja) | 繊維複合材料及びその製造方法 | |
CN1266390A (zh) | 复合多孔纤维结构材料的制造方法 | |
JP4980299B2 (ja) | 炭化ケイ素質多孔体 | |
CN1219461A (zh) | 压砖机及煤砖的制造方法 | |
CN101468919A (zh) | 耐火灰浆固化成形物 | |
Wang et al. | Advances on direct selective laser printing of ceramics: an overview | |
Boccaccini et al. | Electrophoretic deposition infiltration of metallic fabrics with a boehmite sol for the preparation of ductile-phase-toughened ceramic composites | |
Chen et al. | Effect of bimodal powder on densification and mechanical properties of 316L stainless steel fabricated by binder jet 3D printing | |
CN1041648A (zh) | 高强轻质稻壳灰保温砖及其制法 | |
CN115244216A (zh) | 具有改进的表面接触电阻和反应活性的部件及其制造方法 | |
DE102004006824B4 (de) | Porenbrenner mit Siliziumkarbid-Porenkörper | |
Rice | Reactant Compact and Product Microstructures for TiC, TiB2, and TiC/TiB2 from SPS Processing | |
CN115385703B (zh) | 一种高导热石墨烯板制备方法和石墨烯复合膜 | |
JPS6347691Y2 (zh) | ||
JP4448013B2 (ja) | 燃料電池用ガス拡散層、その製造方法および燃料電池用ガス拡散層積層構造 | |
JP3498181B2 (ja) | 多孔質断熱材及びその製造方法 | |
KR20210066456A (ko) | 무가압 소결을 이용한 필터미디어 제조방법 |
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 | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 |