The formulation, the technological conditions and the product properties of polyurethane materials for low density long fiber injection (LFI) process were studied.
对低密度长玻璃纤维注射工艺(LFI)用聚氨酯材料的配方、工艺条件和制品性能进行了研究。
2
It is clarified that the specimens of smaller mixing and injection machines were smaller variation in weight loss, sintered density and strength.
结果表明，较小的混炼机和注射机制造的试样，重量损失、烧结密度和强度的变化程度较小。
3
Plasma electron density was increased by using the method of gas fuelling with molecular beam injection in the HL 1m tokamak.