32results about How to "Realize fully mechanized operation" patented technology

A method for machining TC4-DT titanium alloy large-specification slab forged piece comprises the following steps: billet forging, intermediate forging, high-low circulating forging, inverting upsetting forging and shaping forging. The method is characterized in that: the large-specification forging stock is adopted for integral forging according to the method; compared with a prior-art small-specification forging blank repeated upsetting forging technique, at a state that the upsetting deformation blank height-to-diameter ratio is restricted, single weight of the forged piece is greatly improved and reaches up to above one ton; according to the deformation role in metal pressure machining, appropriate forging starting temperature and forging finishing temperature are selected, and the technical parameters are reasonably matched; the metal sufficiently deforms in a transverse direction in the forging process; forming penetration efficiency is improved; actual deformation amount and deformation uniformity of the large-specification forged piece are increased; and capability of the product for satisfying the requirement is ensured. The method further has the following advantages: capability of realizing full mechanical operation in the forged piece production process, reduced manual operation arbitrainess, large forging pressure, reduced times of heating, high batch quality consistency, high ultrasonic flow detection grade, and greatly reduced production period.

The invention discloses application of high-frequency recessive female sterile rice restorer lines in mixed-sowing or mixed-harvesting type rice seed production. A specific method of the application comprises the steps of taking a high-frequency recessive female sterile rice restorer line as a male parent, taking a hybrid rice male sterile line as a female parent, performing mixed sowing on male / female-parent seeds and performing mixed harvesting on the male / female-parent seeds subjected to hybridization and completing the process of seed production, or the steps of taking the hybrid rice male sterile line with screenable genetic specific characters as the female parent, performing mixed sowing and mixed harvesting and then adopting different separation methods to perform further impurityremoval on the seeds subjected to mixed harvesting. The invention also provides a cultivation method which hybridizes a female sterile restorer line FSV1 with a conventional hybrid rice restorer lineR, chooses and gets the high-frequency recessive female sterile rice restorer line with stable genetic characters and excellent comprehensive agronomic characters from F1 progenies. The method has the advantages of realizing the full-mechanized operation of producing and processing hybrid rice seeds and greatly improving the efficiency of hybrid rice seed production.