53results about How to "Eliminate repetitive processes" patented technology

The invention discloses a spinning technique which comprises the steps that (1) compacted raw cotton is loosened into small cotton blocks or cotton bundles for convenient mixing and impurity removal, most impurities, defects and short fibers which are not suitable for spinning are removed from the raw cotton, and the raw cotton with different ingredients are mixed thoroughly and uniformly; (2) cotton rolls which have been processed by scotching are carded, purified and mixed into cotton bars through processes such as a licker-in, cylinders and flats, and a doffer, and the cotton bars are transmitted into a bobbin; (3) cotton neps, impurities and fiber defects in fibers are removed, and the fibers are further separated; (4) the 6-8 cotton bars are combined, and uneven long segments of the cotton bars are improved; and (5) rough yarns are drafted and fine-drawn into a demanded fineness and are then twisted, and fine yarns with a certain twist degree and strength are formed and wound on the bobbin.

The invention discloses a machining technique for an impeller of a ventilator. The machining technique includes the following steps: 1) material preparation; 2) rear disc positioning: fixing a rear disc on a platform; 3) point welding of vanes; 4) checking: checking if the perpendicularity of the vanes, the size of the vanes, and an outer circle of the vanes meet a drawing; 5) point welding of a front disc: performing point welding after alignment and compression; 6) checking: checking if the rotary direction and the size of the vanes meet the demands; 7) welding: firstly welding fillet weld joints between the vanes and the rear disc, secondly welding fillet weld joints between the vanes and the front disc, and performing symmetrical welding to ensure the flatness of the rear disc; 8) hub riveting; 9) shape correcting; 10) vibration aging processing; 11) lathing; 12) checking; 13) balancing; and 14) surface coating: clearing oil stains, excessive metal, burrs, and rust on a fan, performing surface coating according to the demands, and meeting the demands of products; the machining technique is simple, can avoid repeated processes, improve the working efficiency and the properties of all aspects, prolong the service life of the impeller of the ventilator, and enhance the market competitiveness.

The invention discloses a stainless steel passivating technique. The stainless steel passivating technique comprises the following steps that deoiling is conducted, and deoiling and rust removal are conducted before processing; rinsing is conducted, and a deoiling agent is cleaned away; activating is conducted, KM0206 serves as activating liquid, and parts subjected to machining such as welding or rolling or heat treatment are subjected to acid pickling before passivating so that oxide skin can be completely removed and metallic matrices can be exposed; rinsing is conducted, and the activating liquid on the surfaces of the parts is cleaned away; passivating is conducted, the parts are soaked in stainless steel passivating liquid for over 30 minutes at the normal temperature, and preferably, soaking is conducted for 60 minutes; rinsing is conducted, the passivating liquid left on the surfaces of the workpieces is cleaned away; neutralizing is conducted, and caustic soda flakes with the concentration being 5% are used for neutralizing; rinsing is conducted, and neutralizing liquid left on the surfaces of the workpieces is cleaned away; pure water is put into use, and due to the fact that impurities are contained in ordinary tap water, impurities and water stains can be removed through the pure water; and drying is conducted, and the workpieces are dried through a drying oven at the temperature being lower than 180 DEG C or aired.

The invention discloses a surface treatment process for a wire rod. The surface treatment process is characterized by comprising the following steps: 1) acid pickling, wherein the density of a hydrochloric acid pool is no less than 120; 2) water scrubbing and swinging twice to three times; 3) flushing with high pressure water so as to totally remove residual acid; 4) phosphatization, wherein the total acidity of a phosphatization pool is 120 to 180 points, free acid is 10 to 20 points, total zinc amount is 40 to 60 g / L, temperature is greater than 65 DEG C, and phosphatization time is 2 to 10 min; 5) flushing with high pressure water; 6) saponification, wherein the temperature and pH value of a saponification pool is no less than 85 DEG C and 8 respectively; and 7) natural drying. The process provided by the invention is simple, omits a plurality of repeated procedures and improves work efficiency.

The invention discloses a construction process for spraying concrete. The construction process is characterized by comprising steps of 1), inspecting the sizes of excavated sections, eliminating float residues and cleaning sprayed surfaces; 2), mixing sprayed mixtures and transporting the sprayed mixtures; 3), initially spraying the concrete with the size of 4 cm; 4), applying anchor rods and steel frames and hanging reinforcement nets; 5), eliminating dust on initially sprayed surfaces; 6), repeatedly spraying the concrete until requirements on designed thicknesses are met; 7), cleaning construction machines and tools. The construction process has the advantages that the construction efficiency can be improved, large quantities of repeated working procedures can be omitted, and the labor intensity can be relieved.

The invention discloses a processing technology of a plate spring. The processing technology is characterized by comprising the following steps of (1) performing blanking, firstly cutting a block of large steel plate into bar-shaped steel strips, and then cutting the steel strips into steel blocks of different required lengths; (2) performing alignment; (3) performing punching: punching center holes and end holes, and finally fixing the steel blocks of different lengths together, so as to prevent displacement and be convenient for fixation and mounting; (4) performing edge cutting: removing large burrs, and then performing bending, lug scrolling, and lug coating; (5) performing shaping; (6) performing heating, wherein heat treatment is performed on a general plate spring at about 1100 DEG C; (7) performing forming; (8) performing quenching and tempering; (9) performing shot blasting; and (10) spraying paint and performing drying so as to prevent the surface of the plate spring from being subjected to an oxidation reaction with air and moisture outside, and alleviate corrosion velocity of the plate spring. The technological method is simple, and many repeated working procedures are omitted, so that the working efficiency is improved.

The invention discloses an iron piece chemical nickel plating process. The process is characterized by comprising the steps of: 1) degreasing: heating a 5%-10% degreasing powder to 65-70 DEG C and soaking for 5-10 min; 2 ) washing with water; 3) pickling and activating; 4) washing; 5) chemical plating: rinsing the workpiece, heating to 85-90 DEG C and conducting plating for 10-20 min; 6) washing: washing in a water tank, or rinsing with tap water, and washing off the plating liquid on the workpiece; 7) passivating by a 5% potassium dichromate[ dichromate or chromic anhydride for 1-3 min, wherein the discoloration of the coating is prevented, and the passivation solution is at room temperature, and does not need heating; 8) washing: cleaning the remaining passivation solution on the workpiece; 9) washing by pure water to prevent the watermark and other residues on the workpiece, and heating the pure water to 80-100 DEG C; and 10) drying by an oil-free air compressor air gun, or stoving. The process is simple, eliminates a lot of repetitive processes, and improves work efficiency.

The invention discloses a pouring technology for castings. The pouring technology is characterized by comprising the steps of 1, preparing; 2, pouring and 3, production safety protecting; in the preparing step, whether casting ladles are dried, whether sprue mouths are smooth and flat, whether slag collection agents are prepared completely, whether slag removing tools are prepared and whether products needing chilling block addition are prepared completely are inspected before pouring everyday; in the pouring step, a first molten iron ladle discharged from a furnace is used for pouring unimportant castings, waste castings replace chilling blocks, the slag collection agents are uniformly scattered over molten iron of each casting ladle, a slag remover removes slag on the sprue mouths, and the height from ladle spouts to sprue cups is generally controlled to be within 150-200 mm; in the production safety protecting step, workers need to wear labor protection appliances before working, need to operate safely and reliably in the ladle pouring process, do not fill the casting ladles with too much molten iron when receiving the molten iron, need to concentrate on the pouring process without glancing at feeder heads, need to move gently with carefulness and discretion when handling weights and shifting boxes and need to clear sites after pouring is completed. The pouring technology has the advantages that the method is simple, a plurality of repeated processes are eliminated, and the work efficiency is improved.