深海地震儀浮力材料成型工藝研究

陳江 丁建龍 倪宇

摘 要：該實驗采用自主研發的真空密煉擠出成型機對深海地震儀浮力材料成型工藝及加工條件進行探索，探討空心玻璃微珠、環氧預混料在不同成型方式下對成型產品的氣孔率、壓縮強度、耐靜水壓強度的影響。研究表明，使用真空密煉擠出成型方式（真空度為0.04±0.01 MPa）成型時性能最佳，固化后的標準塊氣孔率≤2/dm2，密度為0.55±0.02 g/cm3，壓縮強度為62 MPa，24 h極限耐靜水壓強度為72.5 MPa，60 MPa一周吸水率小于2%，可在水下6 000 m安全使用。

關鍵詞：固體浮力材料 成型工藝 空心玻璃微珠

Abstract：The molding process and processing conditions of deep sea seismograph buoyancy materials were investigated via self-developed vacuum extrusion molding internal mixer.The effects of hollow glass beads and epoxy premix under different forming methods on the porosity，compression strength and resistance to hydrostatic strength of molding products were studied.The performance of molding product was the best when using the vacuum internal mix extrusion molding under the vacuum degree of 0.04±0.01 MPa.Standard piece of porosity after curing was less than 2/dm2，density was 0.55±0.02 g/cm.3，the compression strength was 62 MPa，24h hydrostatic strength limit was 72.5 MPa，the week water absorption of solid buoyancy material under 60 MPa was less than 2% and can be used safety in underwater 6 000 m.

Key Words：Solid Buoyancy Material（SBM）；Forming Process；Hollow Glass Bead（GB）

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