本文選題：水溶性輕質(zhì)砂芯模 + 力學(xué)性能��； 參考：《工程塑料應(yīng)用》2017年07期

【摘要】：以聚乙烯醇(PVAL)水溶液作為基體材料,以模型砂為增強(qiáng)材料,經(jīng)過熱烘干工藝制作了一種水溶性砂芯模材料,著重對水溶性輕質(zhì)砂芯模的制備工藝特點(diǎn)、力學(xué)性能和水溶性能進(jìn)行研究,并將所制得的水溶性輕質(zhì)砂芯模成功用于樹脂基復(fù)合材料結(jié)構(gòu)件的制造中。結(jié)果表明,水溶性輕質(zhì)砂芯模較純砂芯模(1.60 g/cm~3)輕24%,比金屬模具的鋼材密度(7.85 g/cm3)輕84.5%;水溶性輕質(zhì)砂芯模的壓縮強(qiáng)度隨著溫度的升高而降低,當(dāng)溫度為150℃時,輕質(zhì)砂芯模的壓縮強(qiáng)度為4.09 MPa;水溶性輕質(zhì)砂芯模的各項性能滿足復(fù)合材料結(jié)構(gòu)件制造的要求。
[Abstract]:A kind of water-soluble sand core molding material was prepared by using polyvinyl alcohol PVAL-water solution as matrix material and model sand as reinforcement material. The characteristics of preparation process of water-soluble lightweight sand core mould were emphasized. The mechanical properties and water-soluble properties were studied, and the water-soluble light-weight sand core mold was successfully used in the manufacture of resin-based composite structural parts. The results show that the water-soluble lightweight sand core mould is lighter than that of pure sand core mould (1.60 g / cm ~ (3), which is 84.5% lighter than the steel density of metal mould (7.85 g / cm ~ (3), and the compression strength of water-soluble light sand core mould decreases with the increase of temperature, when the temperature is 150 鈩，

本文編號：1832455