Kuyendera chitetezo ndi muyezo wazinthu za ndowe

Kuyendera chitetezo chambedza
1. The mbedza used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The mbedza used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. Pambuyo pambedzaamachotsedwa pantchito yoyendera, sipangakhale zolakwika kapena zowonekera, ndipo kuchuluka kwa digiri yoyamba sikuyenera kupitirira 0,25% ya kukula koyambirira.

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

Zolemba zazitsulo zambedzas
Pulogalamu yambedzaziyenera kuchotsedwa pakagwa chimodzi mwazinthu izi:
â ‘Mng’alu;
â‘¡Kavala kagawo kowopsa amafikira 10% ya kukula koyambirira;
â ‘¢ Digiri yoyamba kutsegula ikuwonjezeka ndi 15% poyerekeza ndi kukula koyambirira;
④The torsion deformation of the mbedza body exceeds 10°;
⑤The dangerous section of the mbedza or the neck of the mbedza is plastically deformed;
⑥The mbedza thread is corroded;
⑦When the wear of the mbedza bushing reaches 50% of the original size, the bushing should be replaced;
⑧ Pamene mandrel a chidutswachombedzayavalidwa mpaka 5% ya kukula koyambirira, mandrel iyenera kusinthidwa.