Feiligensynspeksje en skrootstandert fan haak

Feiligens ynspeksje fanheak
1. The heak used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The heak used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. Nei deheakwurdt fuorthelle fan 'e ynspeksjelast, d'r moatte gjin foar de hân lizzende defekten of deformaasje wêze, en de tanimming fan iepeningsgraad moat net mear dan 0,25% fan' e orizjinele grutte wêze.

4. Foarheaks that have passed the inspection, a mark should be printed in the low-stress area of the heak, including the rated lifting weight, factory mark or factory name, inspection mark, production number, etc.

Scrap noarmen foarheaks
Deheakmoat wurde sloopt as ien fan 'e folgjende situaasjes foarkomt:
â 'Krekt;
ââ¡ Gefaarlike seksje wear berikt 10% fan 'e orizjinele grutte;
â ¢ De iepeningsgraad wurdt ferhege mei 15% fergelike mei de orizjinele grutte;
④The torsion deformation of the heak body exceeds 10°;
⑤The dangerous section of the heak or the neck of the heak is plastically deformed;
⑥The heak thread is corroded;
⑦When the wear of the heak bushing reaches 50% of the original size, the bushing should be replaced;
⑧ Doe't de mandrel fan it stikheakwurdt droegen oant 5% fan 'e orizjinele grutte, moat de mandrel wurde ferfongen.