| 摘要 |
PROBLEM TO BE SOLVED: To provide an extremely practical nozzle body.SOLUTION: A nozzle body is provided with: a slurry accumulation chamber 1 which has a prescribed length and in which slurry is accumulated by introducing slurry mixed with abrasive grains and liquid; and near the slurry accumulation chamber 1, an air injection passage 30 which has a prescribed length in a direction orthogonal to the lengthwise direction of the slurry accumulation chamber 1. The air injection passage 30 and the slurry accumulation chamber 1 are communicated by a derivation passage 6, the slurry is derived from the slurry accumulation chamber 1 through the derivation passage 6 by passing compressed air through the air injection passage 30, and the slurry and the compressed air are mixed in a mixing chamber 3. The nozzle body injects an injection material 4 mixed with the compressed air and the slurry from a slit-like injection part 5.SELECTED DRAWING: Figure 1 |
