3results about How to "Improve structural toughness" patented technology

This invention belongs to the field of heavy metal pollution remediation technology, and relates to the preparation and application of a cadmium passivating agent for weakly alkaline soil. The weakly alkaline soil cadmium passivating agent mainly comprises the following components by weight: 30-50 parts of a mineral complex, 40-60 parts of a bioactive component, and 5-15 parts of an auxiliary stabilizer. The mineral complex includes natural sepiolite, calcium-based bentonite, and a polyether-polyester diblock copolymer; the bioactive component includes microbial agents, phosphorus-modified biochar, lecithin, and phosphatidylserine; and the auxiliary stabilizer includes nano-hydroxyapatite and a chitosan-grafted polyaspartic acid complex. This weakly alkaline soil cadmium passivating agent exhibits excellent remediation effects on cadmium in contaminated soil, effectively preventing or reducing the entry of cadmium and other heavy metals into the food chain, and has significant market potential.

This utility model belongs to the field of axle housing technology and discloses a heavy-duty truck axle housing, including an axle housing body, a flange connected to the axle housing body, a mounting base, an upper leaf spring seat, and a lower leaf spring seat connected to the axle housing body. The upper leaf spring seat and the lower leaf spring seat are respectively provided with upper mounting holes and lower mounting holes, and are respectively provided with upper leaf spring filling and reinforcing surfaces and lower leaf spring filling and reinforcing surfaces. The upper leaf spring seat is connected to a large arc transition rib, which is connected to the axle housing body. The upper leaf spring seat is also connected to a flange side transition rib, which is connected to the axle housing body. The lower leaf spring seat is connected to a connecting rib, which is connected to the axle housing body. This utility model enhances the overall structural strength of the axle housing, enabling the axle housing to stably bear loads under complex working conditions such as heavy loads and bumps, avoiding the problem of fatigue cracks or even fracture failure at the contact point between the axle housing and the leaf spring seat, and improving the load-bearing capacity and service life of the axle housing.

The utility model discloses a kind of anti-cracking prefabricated wallboards, it is related to prefabricated wallboard technical field, including prefabricated wallboard main part, the inside of prefabricated wallboard main part is provided with anti-cracking reinforcement component, the anti-cracking reinforcement component is used to enhance the anti-cracking performance of the prefabricated wallboard main part;The anti-cracking reinforcement component includes the fiber mesh layer being set in the inside of prefabricated wallboard main part, the inside of the fiber mesh layer is provided with staggered woven glass fiber layer, the inside of the glass fiber layer is provided with basalt fiber layer, the inside of the basalt fiber layer is provided with nanometer carbon fiber layer.The utility model constructs multilayer composite anti-cracking reinforcement component in the inside of prefabricated wallboard main part, realizes the significant promotion of wallboard overall anti-cracking performance, can solve the problem that traditional prefabricated wallboard is limited by single reinforcing material performance, leads to prone to crack, affects service life and building safety.