A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a preparation method of a thin-walled tube, which belongs to the technical field of thin-walled tube manufacturing, is used for preparing the thin-walled tube and comprises thefollowing steps: mixing raw material powder and a sintering aid, wherein the sintering aid comprises aluminum or an aluminum-containing compound, adding a binding agent, a dispersing agent and a lubricating agent into a mixture of the raw material powder and the sintering aid, performing wet ball milling to obtain slurry, spraying and granulating the slurry to obtain granulated powder, adding a plasticizer into the granulated powder, stirring to obtain a mixture, pugging the mixture to obtain pug, extruding and molding the pug to obtain a pipe blank, carrying out microwave drying on the pipe blank, and carrying out high-temperature sintering on the pipe blank, so that the thin-walled tube is obtained. Aluminum or an aluminum-containing compound is added into the sintering aid, so that thesintering temperature is reduced, the problem of coarse grains of the finished thin-walled tube is solved, the crystal compactness is enhanced, and the bending strength is improved. Microwave drying shaping and drying are carried out, pipe blank deformation is small, and the straightness and roundness of the finished thin-walled pipe are good.
本发明提供一种薄壁管的制备方法，属于薄壁管制造技术领域，用于制备薄壁管，其包括将原料粉和烧结助剂混合；其中，烧结助剂包括铝或含铝化合物；向原料粉和烧结助剂的混合物中加入粘结剂、分散剂、润滑剂，并进行湿法球磨，得到浆料；将浆料喷雾造粒得到造粒粉体；向造粒粉体中加入塑化剂，搅拌得到混合物；将混合物进行练泥得到泥料；将泥料挤压成型得到管材坯体；对所述管材坯体进行微波干燥；对所述管材坯体进行高温烧结，得到薄壁管。烧结助剂中加入铝或含铝化合物，使烧结温度降低，改善成品薄壁管晶粒粗大问题，晶体致密性增强，其抗弯强度提高。微波干燥定型和干燥，管材坯体变形小，成品薄壁管直线度和圆整度好。
The invention provides a preparation method of a thin-walled tube, which belongs to the technical field of thin-walled tube manufacturing, is used for preparing the thin-walled tube and comprises thefollowing steps: mixing raw material powder and a sintering aid, wherein the sintering aid comprises aluminum or an aluminum-containing compound, adding a binding agent, a dispersing agent and a lubricating agent into a mixture of the raw material powder and the sintering aid, performing wet ball milling to obtain slurry, spraying and granulating the slurry to obtain granulated powder, adding a plasticizer into the granulated powder, stirring to obtain a mixture, pugging the mixture to obtain pug, extruding and molding the pug to obtain a pipe blank, carrying out microwave drying on the pipe blank, and carrying out high-temperature sintering on the pipe blank, so that the thin-walled tube is obtained. Aluminum or an aluminum-containing compound is added into the sintering aid, so that thesintering temperature is reduced, the problem of coarse grains of the finished thin-walled tube is solved, the crystal compactness is enhanced, and the bending strength is improved. Microwave drying shaping and drying are carried out, pipe blank deformation is small, and the straightness and roundness of the finished thin-walled pipe are good.
本发明提供一种薄壁管的制备方法，属于薄壁管制造技术领域，用于制备薄壁管，其包括将原料粉和烧结助剂混合；其中，烧结助剂包括铝或含铝化合物；向原料粉和烧结助剂的混合物中加入粘结剂、分散剂、润滑剂，并进行湿法球磨，得到浆料；将浆料喷雾造粒得到造粒粉体；向造粒粉体中加入塑化剂，搅拌得到混合物；将混合物进行练泥得到泥料；将泥料挤压成型得到管材坯体；对所述管材坯体进行微波干燥；对所述管材坯体进行高温烧结，得到薄壁管。烧结助剂中加入铝或含铝化合物，使烧结温度降低，改善成品薄壁管晶粒粗大问题，晶体致密性增强，其抗弯强度提高。微波干燥定型和干燥，管材坯体变形小，成品薄壁管直线度和圆整度好。
Preparation method of thin-walled tube
一种薄壁管的制备方法
XU ZHONGFEI (author)
2020-10-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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