摘要：【中文】本发明公开一种Fe‑Al金属间化合物微孔材料的焊接方法及其焊接件，本发明涉及焊接技术领域。针对现有技术中Fe‑Al微孔材料与致密不锈钢之间的焊接具有很大难度的问题，本发明Fe‑Al金属间化合物微孔材料的焊接方法包括以下步骤：开启熔化焊焊机的“枪气”并开启保护罩内的焊接保护气体；调节熔化焊过程中焊机的焊接参数以及保护罩内的焊接保护气体的参数；启动焊机并使用焊丝作为焊接填充料进行Fe‑Al金属间化合物微孔材料与致密不锈钢的焊接；以及当完成焊接之后，进行冷却。通过实施本发明的焊接方法，焊接的Fe‑Al金属间化合物微孔材料与致密不锈钢结合牢固且稳定性高，焊缝饱满均匀，无咬边、表面裂纹、缺肉等缺陷。 【EN】The invention discloses a welding method of a Fe-Al intermetallic compound microporous material and a welding part thereof, and relates to the technical field of welding. Aiming at the problem that the welding between the Fe-Al microporous material and the compact stainless steel in the prior art is very difficult, the welding method of the Fe-Al intermetallic compound microporous material comprises the following steps: starting the gun gas of the fusion welding machine and starting the welding protective gas in the protective cover; adjusting welding parameters of a welding machine and parameters of welding protective gas in a protective cover in the fusion welding process; starting a welding machine and using a welding wire as a welding filler to weld the Fe-Al intermetallic compound microporous material and the compact stainless steel; and cooling after the welding is completed. By implementing the welding method, the welded Fe-Al intermetallic compound microporous material is firmly combined with the compact stainless steel, has high stability, full and uniform welding line, and has no defects of undercut, surface crack, meat deficiency and the like.

摘要：【中文】本发明公开一种Fe‑Al金属间化合物滤芯及其制备方法，涉及粉末冶金及过滤技术领域。针对现有技术中使用纤维毡为过滤层会降低过滤器的稳定可靠性的缺陷，本发明提供一种Fe‑Al金属间化合物滤芯，其包括：至少两节滤芯部件以及将至少两节滤芯部件横向焊接连接的加强筋，滤芯部件包括至少两段Fe‑Al金属间化合物滤芯粉末管和将至少两段Fe‑Al金属间化合物粉末管首尾焊接连接的连接件；至少两段Fe‑Al金属间化合物粉末管包括基体骨架和在基体骨架外面的表面过滤膜，基体骨架是经压制烧结过的预合金化的Fe‑Al金属间化合物粉末。本发明保证了滤芯具有高精度、大通量、低流通阻力、良好反洗再生性能与优异整体结构强度的优点。 【EN】The invention discloses a Fe-Al intermetallic compound filter element and a preparation method thereof, and relates to the technical field of powder metallurgy and filtration. Aiming at the defect that the use of fibrofelt as a filter layer in the prior art can reduce the stability and reliability of the filter, the invention provides a Fe-Al intermetallic compound filter element, which comprises the following components: the filter element comprises at least two filter element parts and reinforcing ribs for transversely welding and connecting the at least two filter element parts, wherein the filter element parts comprise at least two sections of Fe-Al intermetallic compound filter element powder pipes and connecting pieces for welding and connecting the at least two sections of Fe-Al intermetallic compound powder pipes end to end; the at least two sections of Fe-Al intermetallic compound powder tubes comprise a matrix skeleton and a surface filter membrane outside the matrix skeleton, wherein the matrix skeleton is pre-alloyed Fe-Al intermetallic compound powder which is pressed and sintered. The invention ensures that the filter element has the advantages of high precision, large flux, low flow resistance, good backwashing regeneration performance and excellent integral structural strength.

摘要：【中文】本发明公开一种梯度复合Fe‑Al金属间化合物微孔滤材及其制备方法，本发明涉及粉末冶金制备领域。针对现有技术中由于工艺局限很难制备具有耐高温腐蚀性的Fe‑Al滤材，本发明提供一种梯度复合Fe‑Al金属间化合物微孔滤材，其特征在于，该梯度复合Fe‑Al金属间化合物微孔滤材包括基体骨架和在基体骨架外面的表面过滤膜，其中：基体骨架是经压制烧结过的预合金化的Fe‑Al金属间化合物粉末，表面过滤膜是经在所述基体骨架外表面涂覆后二次烧结过的粘结剂、水和预合金化的Fe‑Al金属间化合物粉末的混合物。由此实现高精度、大通量、低阻降、良好反吹再生特性、高强度、耐高温腐蚀的梯度复合Fe‑Al金属间化合物微孔滤材。 【EN】The invention discloses a gradient composite Fe-Al intermetallic compound microporous filter material and a preparation method thereof, and relates to the field of powder metallurgy preparation. Aiming at the problem that the Fe-Al filter material with high temperature corrosion resistance is difficult to prepare due to process limitation in the prior art, the invention provides a gradient composite Fe-Al intermetallic compound microporous filter material, which is characterized by comprising a matrix framework and a surface filtering membrane outside the matrix framework, wherein: the matrix framework is pre-alloyed Fe-Al intermetallic compound powder which is pressed and sintered, and the surface filter membrane is a mixture of a binder, water and the pre-alloyed Fe-Al intermetallic compound powder which are secondarily sintered after the outer surface of the matrix framework is coated. Therefore, the gradient composite Fe-Al intermetallic compound microporous filter material with high precision, large flux, low resistance drop, good back-flushing regeneration characteristic, high strength and high-temperature corrosion resistance is realized.

摘要：【中文】本发明公开一种Fe‑Al系金属膜及其制备方法，涉及高温、低压工况下的气‑固分离相关的技术领域，主要针对现有技术中传统金属滤芯在低压工作环境下过滤阻力大、通量低等的缺陷。本发明的制备方法包括步骤：将Fe‑Al系金属粉末与添加了有机添加剂的水基溶剂搅拌脱泡以得到流延浆料；将要求厚度的金属基层在流延机上流延出一层均匀的膜层并对其进行干燥处理，以得到膜片胚体；以及将干燥后的膜片坯体分别在烧结炉中进行脱脂、烧结、合金相有序化处理以制备Fe‑Al系金属膜，其中所述脱脂处理是脱除所述有机添加剂的处理。由此，本发明方法制备的Fe‑Al系金属膜具有高通量并能在高操作温度、低工作压力、出口固含量低的工况下应用。 【EN】The invention discloses a Fe-Al series metal membrane and a preparation method thereof, relates to the technical field related to gas-solid separation under high-temperature and low-pressure working conditions, and mainly aims at overcoming the defects of large filtration resistance, low flux and the like of a traditional metal filter element in the prior art under a low-pressure working environment. The preparation method comprises the following steps: stirring and defoaming Fe-Al series metal powder and a water-based solvent added with an organic additive to obtain casting slurry; casting a uniform film layer on the metal base layer with the required thickness on a casting machine, and drying the film layer to obtain a film blank; and degreasing, sintering and carrying out alloy phase ordering treatment on the dried membrane blank in a sintering furnace respectively to prepare the Fe-Al series metal membrane, wherein the degreasing treatment is the treatment of removing the organic additive. Therefore, the Fe-Al series metal film prepared by the method has high flux and can be applied under the working conditions of high operating temperature, low working pressure and low solid content at an outlet.