Abstract
Comparative studies of the blade’s materials for mixer-pneumosuperchargers operated under abrasive conditions were carried out. For this purpose in the production environment at the construction site the service lifetime of the blades offered by various manufacturers was measured on four “SO – 241” mixer-pneumosuperchargers. Production of building mixture in quantity declared by the manufacturer was used as a control period. It is shown that blades made of 110G13L steel retained their service properties almost until the completion of the control period. Also, the composition and technology for producing the working elements of mixer-pneumosuperchargers from wear-resistant white cast iron alloyed with chromium and manganese was developed. The test results showed that the blades made of the proposed material exceeded the service lifetime of the blades made of 110G13L steel.
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