211 results about "STEP-NC" patented technology

An intelligent STEP-NC (Standard for the Exchange of Produce model-Numerical Controller) overcomes short-comings of conventional NCs with a closed structure The intelligent STEP-NC intelligently performs a machining process based on ISO 14649 data while autonomously coping with an emergency at a shop-floor. Thus, the discontinuity of information in a CAD-CAM-CNC chain where the current NCs are operated can be overcome and the concept of “design-to-manufacture” can be realized.

The invention relates to a method for producing antibacterial fabric finished by bamboo vinegar liquor, which is characterized by comprising the following production steps: a, firstly cleaning dirt onthe fabric and then drying the fabric; b, preparing finishing liquor at the temperature of between 30 and 50 DEG C by using clear water, adding the bamboo vinegar liquor and assistant into the finishing liquor, and stirring the finishing liquor evenly; c, placing the finishing liquor prepared in the step b into a bath of drying equipment, and slowly passing the fabric in the step a through the bath; d, controlling the mangle expression of the fabric in the step c at 70 to 80 percent through the action of a roller; e, pre-drying the fabric in the step d in a dryer at the temperature of between70 and 90 DEG C and at the speed of 8 to 18 meters per minute; and f, drying the fabric in the step e in the dryer at the temperature of between 130 and 180 DEG C and at the speed of 15 to 25 metersper minute. The method which adopts the bamboo vinegar liquor to carry out antibacterial finishing for the fabric for producing various textiles has the following advantages: (1) rich resources, (2) nature and environmental protection, (3) simple and convenient production, (4) convenient use, and (5) remarkable antibacterial effect.

The invention relates to a comprehensive recycling method for a lithium iron phosphate cathode material, belonging to the technical field of recycle of waste lithium ion batteries. The invention aims to provide the comprehensive recycling method for the lithium iron phosphate cathode material, comprising the following steps of: a, roasting the lithium iron phosphate cathode material at the temperature of 500-800 DEG C for 1-4h; b, adding sulfuric acid into a roasted material to leach, controlling the pH value between 0.5 and 1 during leaching, and filtering to obtain a mixed solution of lithium phosphate, ferric phosphate and ferric sulfate; c, heating the mixed solution obtained in the step b to 80-100 DEG C, adjusting the pH value of the mixed solution to 2-2.5, reacting for 1-4h, filtering, cleaning and drying to obtain the ferric phosphate; and d, adjusting the pH value of a filtrate obtained through filtering in the step c to 10-12, reacting for 0.5-2h, filtering, cleaning and drying to obtain the lithium phosphate.

The invention relates to an STEP-NC based intelligent nonlinear process planning method. The method comprises the steps of determining a machining operation method corresponding to a component machining feature type through a pre-trained BP neural network model; sequencing all machining steps in the machining operation method based on pre-defined machining step sequencing principles to obtain a reasonable machining step sequence; and in allusion to each machining step in the machining step sequence, selecting resources matched with the machining step, and optimizing each machining step and process parameters of each machining step by adopting a chaotic genetic algorithm to obtain an optimal machining process plan. According to the method, the chaotic algorithm, the genetic algorithm and the BP neural network are organically combined and applied to process optimization for the STEP-NC, thereby being capable of performing efficient, accurate and intelligent logical reasoning, effectivelysolving a complex process planning problem, and having important significance for the further study of the STEP-NC theory.

The invention discloses a production process of a spandex jacquard four-faced elastic fabric. The method comprises the following steps of step A, preparation of a polyester air coated yarn; step B, preparation of a warp yarn; step C, beaming; step D, sizing; step E, weaving; step F, desizing and vinylon dissolution; step G, dyeing and step H, shaping. The production process of the spandex jacquardfour-faced elastic fabric has the advantages that warp and weft yarns adopt a twisted yarn of a polyester ammonia covering yarn and water soluble vinylon, the method of adopting the polyester ammoniacovering yarn for active yarn feeding makes the twisted yarn have no elasticity, a conventional loom can be used for weaving, and vinylon dissolution is performed after weaving, so that the elasticity of warp and weft yarns is restored. And gaps reserved by the vinylon dissolution make the fabric have better air permeability.

The invention discloses a stratigraphic correlation method. The stratigraphic correlation method includes the steps that a, hierarchical processing is performed on two wells to be compared according to the form and the degree of a well logging curve, and each well is divided into a plurality of well layers; b, each hierarchically processed well layer is fitted through a cloud expectation curve, a plurality of cloud models are obtained through fitting, numerical characteristics of all the cloud models are calculated, and an appropriate cloud model to be used for comparison is selected; c, the appropriate cloud model is selected from the step b, similarity measurement based on Euclidean distance and similarity measurement based on trust level cloud are performed, and a similarity measurement value is obtained through calculation; d, stratigraphic correlation is completed according to the similarity measurement value obtained in the step c. According to the method, the characteristics of well logging data are fully utilized, the recognition accuracy is improved to a great extent, and stratigraphic correlation work can be carried out in production practice.