Air hammer parts processing is completed in the assembly and commissioning process in strict accordance with the Anyang Forging
Machinery Industry Co., Ltd. drafted, and is still in the implementation of the JB / GQ.F2009-86 "air hammer product quality
grading standards" acceptance.
For the fuselage, piston and other castings, the use of diesel for cleaning, diesel monthly change, to ensure the cleanliness of
diesel, but also to ensure that the casting of non-processed surface without sand, the relevant parts of the cleanliness index
reached JB / GQ200 2-83 "forging machinery products cleanliness standards" requirements, put an end to the cylinder, hammer,
piston strain.
Transmission gear meshing should be uniform, contact area, tooth height, tooth width direction shall not be less than 40%, 60%.
For the hammer body of the split body, after the baking ring fastening, the contact surface should be closely fit, with 0.05mm
feeler inspection, insert the depth of not more than 20mm, the cumulative length of the contact surface should not exceed 10% of
the circumference.
Piston ring into the cylinder, it should be even contact with the cylinder wall, after the test run after the test, in the height
of the direction of contact shall not be greater than 1/3, in the direction of the local non-contact length of the circumference
should not be greater than the circumference of 1 /12, Not more than 1/4 of the circumference.
In the hammer, hammer work norms, the noise shall not exceed 90dB (A).
Upper and lower fuselage joints do not allow leakage of oil.