The transverse crack in surfacing layer, porosity in bead edge and non-fusion between layers are the defects that are liable to produce when multi-layer surfacing is used.
多层堆焊时，易产生堆焊层横向裂纹、焊道边缘气孔及层间结合不良等堆焊缺陷。
The transverse crack in surfacing layer, porosity in bead edge and non fusion between layers are the defects that are liable to produce when multi layer surfacing is used.
堆焊层横向裂纹、焊道边缘气孔及层间未熔合是多层堆焊时易产生的缺陷。
The results showed that cemented carbide manufactured by sinter-HIP is free of porosity and transverse-rupture strength, bending fatigue life are also greatly increased.
结果表明，烧结-热等静压制作的硬质合金孔洞消除了，并且硬质合金的抗弯强度和弯曲疲劳寿命也大幅度提高。
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