2results about How to "Fully degradable" patented technology

The invention discloses a surface coating process of a main shaft for a numerical control machine tool, and relates to the technical field of coating of main shafts of numerical control machine tools, and the surface coating process comprises the following steps: carrying out soft sand blasting on the main shaft, fixing the main shaft on a sand blasting table, carrying out 0.2 MPa low-pressure sand blasting for 3 minutes by using modified starch microspheres as a sand blasting medium, and cleaning the surface of the main shaft by using deionized water at 60 DEG C, fixing the main shaft in a suspension manner by using an elastic polyurethane clamp, putting the main shaft into a PVD vacuum coating chamber, and mounting a composite target material, a chromium target and a high-purity graphite target; modified starch microspheres are used as a soft sand blasting abrasive material, a soft matrix of the modified starch microspheres has excellent elasticity and plastic deformation capacity, the surface texture consistency of the spindle is guaranteed, and matrix microcracks and precision damage caused by a traditional hard abrasive material are avoided; by using the composite target material, a composite ceramic phase formed by nuclear phase zirconium dioxide and titanium dioxide has high hardness and excellent toughness, and the impact resistance of a subsequent coating can be enhanced through a stress buffer effect.

The application relates to a method and a special smoking room for low-temperature smoked bacon, and relates to the technical field of meat product deep processing and food machinery engineering. The special part is that a special low-temperature smoking room is used for temperature section smoking: first stage smoking: the smoke temperature is adjusted through a circulating water cooling device, the smoke gas temperature contacted by the bottom layer of bacon blanks in the bacon smoking room is controlled to be 20-25 DEG C, the smoke gas temperature contacted by the top layer of bacon blanks is controlled to be 15-20 DEG C, and smoking is carried out for 2-4 months; second stage smoking: the smoke gas temperature contacted by the bottom layer of bacon blanks in the bacon smoking room is controlled to be 30-35 DEG C, and the smoke gas temperature contacted by the top layer of bacon blanks is controlled to be 25-30 DEG C. Beneficial effects: the oil and fire are separated, and the problem of carcinogens such as benzo[a]pyrene generated by high-temperature cracking of oil is completely eliminated. Meanwhile, the fire risk is greatly reduced, the disadvantages of 'upper maturation and lower growth' or local overheating in the traditional process are eliminated, the controllability of process parameters is high, and a reliable technical path is provided for the standardization and large-scale production of bacon.