35results about How to "Meet the requirements of deep processing" patented technology

The invention provides an acrylic acid-epoxy ester hybrid resin. The acrylic acid-epoxy ester hybrid resin is prepared by reacting an epoxy resin and aliphatic acid under the action of a catalyst so as to prepare epoxy ester and then adding acrylic monomers and an initiator under certain conditions. A self-drying type antirust coating can be prepared with the acrylic acid-epoxy ester hybrid resin provided by the invention as a main film forming substance; a dried anticorrosive coating can also be prepared, especially coatings for curtain spraying sliver-coated mirrors, color films and aluminum mirrors; the coatings can meet coating process requirements of a wide-curtain spraying and coating production line with a maximum length of 3 m and are completely dried when baked at a temperature of 130 to 150 DEG C for 5 to 3 min, a film obtained after complete drying has excellent anticorrosion performance, can resist CASS, dampness, dryness and water with a temperature of 60 DEG C for more than 240 h, satisfy requirements of edging and texturing process of a downstream client and do not suffer from edge blackening and corrosion of clad layers.

The invention provides a silicon-containing acrylic-acid-modified epoxy ester resin, which is prepared by the following steps of: carrying out a high-temperature esterification addition reaction on epoxy resin and fatty acid under the action of esterification catalyst, then reducing reaction temperature, adding acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and carrying out an addition reaction under the action of low-temperature esterification catalyst to obtain acrylic acid epoxy ester resin; and then carrying out radical polymerization on the prepared acrylic acid epoxy ester resin, acrylic acid monomer and organic silicon monomer in the presence of an initiator to prepare the silicon-containing acrylic-acid-modified epoxy ester resin. The silicon-containing acrylic-acid-modified epoxy ester resin provided by the invention is a main film forming material; the paint for curtain spraying of glass is prepared by the silicon-containing acrylic-acid-modified epoxy ester resin and a cross-linking agent; the paint can satisfy the painting process requirements of painting production line of wide curtains as long as 3 m, and can be completely dried after being baked at 130-160 DEG C for 5-7 minutes; and after drying is finished, the hardness and flexibility of the coated film is balanced, thus a paint falling phenomenon during edging, perforating and sandblasting for deep processing of process glass is avoided.

The invention relates to a method for reducing arsenic in amine extracted germanium organic phase, which belongs to the technical field of non-ferrous metallurgy. Material containing germanium and arsenic is leached by sulfuric acid, arsenic reducing agent capable of reducing As5<+> into As3<+> is added into leaching solution according to 1-5g/l, and final acid PH is adjusted to 0.5-1.5; after desilication and filtration, germanium organic complexing agent is added into the solution according to the weight ratio of 8-12 of germanium organic complexing agent to germanium to increase the selective extraction of germanium; and germanium is extracted by a N235 kerosene system, obtained germanium organic phase is washed by oxalic acid solution with the weight percentage of 1-2 percent, and then alkalistripping and hydrolysis are carried out to prepare germanium concentrate. The Na2SO3 is preferably adopted as arsenic reducing agent, and tartaric acid is preferably adopted as the organic complexing agent. The method has the advantages that even the solution has high arsenic concentration, the arsenic content of the produced germanium concentrate can be reduced to below 1 percent to meet the requirements of deep processing of germanium.

The invention relates to the technical field of food processing equipment, in particular to a method for removing longan seeds and pulp and an automatic longan pulp removal machine. The method includes a seed removal step and a pulp removal step. The automatic longan pulp removal machine comprises soft fixtures, a feeding mechanism, a seed removal tool, a pulp removal tool and a punch mechanism. The soft fixtures are used for clamping longan, the feeding mechanism is used for conveying the soft fixtures, the seed removal tool and the pulp removal tool are sequentially arranged along a feeding direction, and the punch mechanism is used for respectively pushing the longan seeds out of the longan pulp and pushing the longan pulp out of longan shells and is correspondingly arranged above the seed removal tool and the pulp removal tool. Compared with the prior art, the method and the automatic longan pulp removal machine have the advantages that longan seed removal and shell removal working procedures can be automatically controlled, accordingly, the method and the automatic longan pulp removal machine are high in work efficiency and easy to implement, and the pure longan pulp can be continuously processed; the longan pulp obtained by the aid of the method and equipment is good in integrity, damage to the longan pulp can be prevented, the method and the automatic longan pulp removal machine are low in pulp loss ratio, and accordingly modern agricultural product deep-processing requirements can be effectively met.

The invention relates to the technical field of food processing equipment, in particular to a longan seed removal tool which structurally comprises a tool rotator, a plurality of blades, a guide wheel and an expander. The blades are arranged on the top of the tool rotator and are spliced with one another along the circumferential direction to form a blade group in the shape of a circular truncated cone by means of enclosing, and the diameter of an opening in the upper end of the blade group in the shape of the circular truncated cone is smaller than that of an opening in the lower end of the blade group; the expander is used for outwardly opening the opening in the upper end of the blade group, the lower end of the expander is fixed to the inner wall of the guide wheel, and the upper end of the expander penetrates the tool rotator and can extends into the blade group in the shape of the circular truncated cone when the tool rotator rotates and moves downwardly relative to the guide wheel, so that the opening in the upper end of the blade group can be opened from the inside to the outside; the tool rotator, the guide wheel and the expander are provided with vertically through cavity structures. Compared with the prior art, the longan seed removal tool has the advantages that longan pulp and seeds can be automatically separated from one another by the aid of the longan seed removal tool, the longan seed removal tool is high in seed removal efficiency and low in pulp loss ratio, and the longan pulp without the seeds is good in integrity.

The invention discloses a production method and an application of low-carbon steel containing boron and titanium, and high-speed wire rods thereof. The low-carbon steel containing boron and titanium contains the main chemical ingredients in percentage by mass: not greater than 0.08% of carbon, not greater than 0.10% of silicon, not greater than 0.60% of manganese, not greater than 0.030% of phosphorus, not greater than 0.035% of sulphur, not less than 0.020% of aluminium, 0.0040-0.0080% of boron, not less than 0.060% of titanium, and the balance Fe and other inevitable impurities. The specific production method is that low-carbon steel billets containing boron and titanium are charged into a furnace and subjected to heating operation, a finish rolling temperature is 940+/-10 DEG C, a spinning temperature is 910+/-10 DEG C, and a slow cooling process is adopted for a cooling process for the wire rods. The tensile strengths of the high-speed wire rods made from the low-carbon steel containing boron and titanium are reduced to 360-380MPa, and the mechanical property of the low-carbon steel is close to the level of about 350MPa of the mechanical property of common low-carbon steel, thus the problem of low cold upsetting and wire-drawing use performance of the low-carbon steel after boron element and titanium element are added is solved, and the deep processing requirements of the wire rods are met.

The invention relates to the technical field of food processing equipment, in particular to a longan pulp removal tool which structurally comprises a blade mounting seat, a plurality of blades, a guide wheel and an expander. The blades are arranged on the top of the blade mounting seat, and the blade mounting seat sleeves the guide wheel and can move up and down relative to the guide wheel; the blades are spliced with one another along the circumferential direction to form a blade group in the shape of a circular truncated cone by means of enclosing, and the diameter of an opening in the upper end of the blade group in the shape of the circular truncated cone is smaller than that of an opening in the lower end of the blade group; the expander is used for outwardly opening the opening in the upper end of the blade group, the blade mounting seat, the guide wheel and the expander are provided with vertically through cavity structures, and the upper end of the expander can extend into the blade group in the shape of the circular truncated cone when the blade mounting seat moves downwardly relative to the guide wheel, so that the opening in the upper end of the blade group can be opened from the inside to the outside. Compared with the prior art, the longan pulp removal tool has the advantages that longan pulp and shells can be automatically separated from one another by the aid of the longan pulp removal tool, the longan pulp removal tool is high in pulp removal efficiency and low in pulp loss ratio, and the longan pulp is good in integrity.

The invention provides a method for eliminating rapid tensile strain marks of a cold-rolled sheet for stamping, which comprises the following steps of: steelmaking: smelting into molten steel by adopting a 150t oxygen top-bottom combined blown converter; RH refining, wherein the RH vacuum treatment time is not shorter than 25 min; continuous casting is conducted, and whole-course protection casting is adopted; the thickness of a continuous casting slab is 210 mm or 230 mm, and the pulling speed of a slab is 0.9-1.1 m/min; hot continuous rolling is carried out, the heating temperature of the slab is 1200-1230 DEG C, the finish rolling temperature is 890-910 DEG C, and the coiling temperature is 680-700 DEG C; the cold rolling production process comprises the following steps: continuous rolling is conducted by 5 racks, wherein the cold rolling reduction rate is 80-87%; a continuous annealing production process is carried out: the temperature of a heating section is 820 +/-5 DEG C, the temperature of a soaking section is 820 +/-5 DEG C, the temperature of a slow cooling section is 660 +/-10 DEG C, the temperature of a rapid cooling section is 420 +/-10 DEG C, the temperature of an overaging section is 400 +/-10 DEG C, the time of the overaging section is not less than 200 s, and the flattening elongation is 0.8-1.6%; and the metallographic structure of a cold-rolled sheet DC03 for stamping is ferrite and cementite. By means of the method, the cold-rolled sheet DC03 for stamping can be produced from ultra-low carbon steel components, and the method is simple in operation process, stable in product performance and good in stamping machining performance.

The invention discloses a manufacturing method for a ceiling aluminum base material. A cast-rolled strip blank is coldly rolled, annealed, withdrawn and straightened as well as packaged in sequence, wherein in the cold rolling treatment process, the manufacturing method comprises the following steps: first, rolling the cast-rolled strip blank to a thickness of 6.5 mm, 4.5 mm, 3.0 mm and 2.2 mm in sequence; and then carrying out immediate annealing treatment on the 2.2 mm thick cast-rolled strip blank; and finally, rolling the cast-rolled strip blank treated through immediate annealing to a thickness of 1 mm. Experiments verify that a crystal grain structure in a finished product is more uniformr through selecting proper cold rolling pass distribution, a proper immediate annealing thickness and an annealing method, the bending performance of the finished product can satisfy machining requirements and a purpose of manufacturing the aluminum base material satisfying deep machining requirements by using the cast-rolled strip blank is achieved.

The invention relates to the technical field of food processing equipment, in particular to a punch mechanism used for removing longan stones and separating longan pulp and a processing method using the punch mechanism to remove the longan stones and separate the longan pulp. The punch mechanism comprises a longan-stone-removing punch for pushing the longan stones out of the longan pulp and a longan-pulp-separating punch for pushing the longan pulp out of longan shells, a longan-stone-removing air cylinder, a longan-pulp-separating air cylinder and a crankshaft connecting rod system driving the longan-stone-removing air cylinder and the longan-pulp-separating air cylinder to reciprocate up and down, wherein the air cylinder rod of the longan-stone-removing air cylinder is connected with the longan-stone-removing punch, and the air cylinder rod of the longan-pulp-separating air cylinder is connected with the longan-pulp-separating punch. Compared with the prior art, the punch mechanism has the advantages that longan stone removing and longan pulp separating can be performed at the same time to obtain pure longan pulp, the punch mechanism is high in work efficiency and capable of continuously processing the pure longan pulp, and the obtain longan pulp is good in integrity; accordingly, the punch mechanism is applicable to mechanical automatic equipment for processing longan pulp, and the deep processing requirements of modern agricultural products can be well satisfied.