2results about How to "Ensure leveling" patented technology

This utility model provides a ridging and piling machine, comprising: a body assembly, a ridging device, a piling device, a collecting device, and a stabilizing component. The body assembly consists of a frame, the ridging device consists of a crossbeam and sliding seats, with two symmetrically distributed sliding seats slidably connected to the surface of the crossbeam. The piling device includes a collecting trough, with a limiting mechanism below the collecting trough. The collecting device is fixedly installed to the bottom of the frame, and the stabilizing component is located at the tail end of the frame. This application uses the body assembly for ridging and piling operations in the field, scraping away gravel from the soil surface while traction is applied. The collecting device can guide and collect gravel, and the soil can be finely crushed and discharged. After combing, it can be filled onto the ridges. The piling range can also be adjusted according to the height of the ridging, simultaneously achieving soil leveling, ensuring the structural strength of the ridged ridges, preventing soil erosion during rainy weather, and adjusting the pressure of the rollers according to the soil compaction, thus improving the performance of the ridging and piling machine.

The present application relates to the technical field of powder coating, in particular to a bio-based epoxy resin anticorrosive powder coating and a preparation method thereof.The present application overcomes the problem that high bio-based content and corrosion resistance cannot be considered in the prior art.The powder coating of the present application is composed of modified epoxy resin, rosin-based epoxy resin, modified bio-based phenolic amine curing agent and titanate modified composite filler;the long chain structure of dimer acid and the rigid skeleton of rosin are used to achieve the rigid and tough balance of the coating;the curing agent modified by amino-terminated silicone oil is used to endow the coating surface with low surface energy and hydrophobic characteristics;the biochar loaded graphene and the in-situ grafting technology in the step temperature control extrusion process are combined to build a dense anticorrosive barrier;the problem of large brittleness and poor water resistance of bio-based coating is solved, and the present application is suitable for heavy anti-corrosion fields such as pipelines and marine facilities.