常見例句High resistance and yieldability of the support are the key factors to guarantee the stability of the roadway in soft strata. 支架的高阻和可縮是確保軟巖巷道穩(wěn)定性的關(guān)鍵。It was proved that dimensional precision and surface roughness of the castings made from the EPC process was good, Collapsability and yieldability of the mould made of sodium silicate b... 實踐証明,水玻璃砂實型鑄造工藝可保証鑄件尺寸精度和表麪粗糙度,同時酯硬化水玻璃砂具有良好的退讓性和較好的潰散性,發(fā)氣量小,具有無毒無味、對環(huán)境無汙染,生産成本低等優(yōu)點。One of main reasons to result in casting hot tears is poor yieldability of the mold(core),particularly when thin wall steel castings are produced by a no-bake resin sand,the problem is more serious. 熱裂産生的主要原因之一就是型(芯)砂容讓性差，尤其是用自硬樹脂砂生産薄壁鑄鋼件時，這個問題顯得特別突出。One of main reasons to result in casting hot tears is poor yieldability of the mold(core),particularly when thin wall steel castings are produced by a no bake resin sand,the problem is more serious. 熱裂産生的主要原因之一就是型(芯)砂容讓性差,尤其是用自硬樹脂砂生産薄壁鑄鋼件時,這個問題顯得特別突出。Keywords thin wall steel casting;hot tearing;yieldability;no bake resin sand; 關(guān)鍵詞薄壁鑄鋼件;熱裂;容讓性;自硬樹脂砂;The following points were emphasized: the hollow structure of core can improve yieldability and reduce the shrinkage stress; 主要強調(diào)以下幾點：提高型芯的退讓性，以減小收縮應(yīng)力，將芯子做成中空結(jié)搆傚果明顯； 返回 yieldability