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Preparation method of high-strength and high-hardness silicon nitride wear-resistant sheet
The invention discloses a preparation method of a high-strength and high-hardness silicon nitride wear-resistant sheet. Silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid are mixed, stirred and ground to obtain silicon nitride formula powder, the silicon nitride formula powder is subjected to dry pressing forming to obtain a silicon nitride wear-resistant sheet forming blank, and the silicon nitride wear-resistant sheet forming blank is subjected to plastic packaging and cold isostatic pressing treatment to obtain a wear-resistant sheet blank; the wear-resistant sheet blank is sintered in an inert or reducing atmosphere with the gas pressure of 1-10MPa to obtain a wear-resistant sheet finished product blank; and vibration grinding and polishing washing are carried out on the obtained wear-resistant sheet finished product blank in water to finally obtain the silicon nitride wear-resistant sheet. Compared with the prior art, by optimizing the formula and technological parameters, the prepared silicon nitride wear-resistant sheet has the advantages of being good in wear resistance, uniform in size, high in yield and the like, and is widely applied to wear-resistant patches on the surfaces of pipelines and stock bins of iron and steel plants, ports and mining machinery.
本发明公开了一种高强高硬氮化硅耐磨片的制备方法，将氮化硅(SiN)、碳氮化钛(TiCN)和助烧剂混合、搅拌、研磨得到氮化硅配方粉，将所述氮化硅配方粉进行干压成型得到氮化硅耐磨片成型坯体，所述氮化硅耐磨片成型坯体经塑封、冷等静压处理得到耐磨片坯体；将所述耐磨片坯体在1‑10MPa气体压力的惰性或还原气氛中烧结得到耐磨片成品坯体；将所得到的耐磨片成品坯体在水中进行振磨抛洗，最终得到氮化硅耐磨片。与现有技术相比，本发明通过优化配方和工艺参数，制得的氮化硅耐磨片具有耐磨性好、尺寸均匀、成品率高等优点，广泛应用于钢铁厂、港口、矿山机械的管道和料仓表面的耐磨贴片。
Preparation method of high-strength and high-hardness silicon nitride wear-resistant sheet
The invention discloses a preparation method of a high-strength and high-hardness silicon nitride wear-resistant sheet. Silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid are mixed, stirred and ground to obtain silicon nitride formula powder, the silicon nitride formula powder is subjected to dry pressing forming to obtain a silicon nitride wear-resistant sheet forming blank, and the silicon nitride wear-resistant sheet forming blank is subjected to plastic packaging and cold isostatic pressing treatment to obtain a wear-resistant sheet blank; the wear-resistant sheet blank is sintered in an inert or reducing atmosphere with the gas pressure of 1-10MPa to obtain a wear-resistant sheet finished product blank; and vibration grinding and polishing washing are carried out on the obtained wear-resistant sheet finished product blank in water to finally obtain the silicon nitride wear-resistant sheet. Compared with the prior art, by optimizing the formula and technological parameters, the prepared silicon nitride wear-resistant sheet has the advantages of being good in wear resistance, uniform in size, high in yield and the like, and is widely applied to wear-resistant patches on the surfaces of pipelines and stock bins of iron and steel plants, ports and mining machinery.
本发明公开了一种高强高硬氮化硅耐磨片的制备方法，将氮化硅(SiN)、碳氮化钛(TiCN)和助烧剂混合、搅拌、研磨得到氮化硅配方粉，将所述氮化硅配方粉进行干压成型得到氮化硅耐磨片成型坯体，所述氮化硅耐磨片成型坯体经塑封、冷等静压处理得到耐磨片坯体；将所述耐磨片坯体在1‑10MPa气体压力的惰性或还原气氛中烧结得到耐磨片成品坯体；将所得到的耐磨片成品坯体在水中进行振磨抛洗，最终得到氮化硅耐磨片。与现有技术相比，本发明通过优化配方和工艺参数，制得的氮化硅耐磨片具有耐磨性好、尺寸均匀、成品率高等优点，广泛应用于钢铁厂、港口、矿山机械的管道和料仓表面的耐磨贴片。
Preparation method of high-strength and high-hardness silicon nitride wear-resistant sheet
一种高强高硬氮化硅耐磨片的制备方法
QU YOUFU (author) / WU MINGLIANG (author)
2020-09-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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