9results about How to "Smooth casting" patented technology

The numerical control machine tool base casting machining equipment comprises a forming mold and a casting ladle mechanism, and the forming mold comprises a mold body, a buckling mechanism, an exhaust mechanism and an air extraction mechanism; the casting ladle mechanism comprises a hoisting mechanism, a casting ladle body and a casting ladle driving mechanism. On the basis that casting machining is not affected, gas generated by thermal decomposition of organic matter in coated sand can be effectively and efficiently exhausted, and therefore the defects of air holes, pits and the like of castings are prevented; and the controllability of casting construction can be improved, so that the safety risk of casting construction is reduced.

The invention discloses a casting mold for machining a machine tool base, which comprises a mold body, the mold body comprises a group of iron shells, corresponding forming cavities are arranged on the iron shells, and a layer of corresponding sand box is covered in each forming cavity; the buckling mechanism is used for locking and fixing one group of iron shells; the exhaust mechanism comprises an exhaust hole formed in the iron shell, an abutting ball body is movably arranged in the exhaust hole, the upper portion of the abutting ball body is upwards and fixedly connected with a pressing plate with filtering holes through a spiral spring, a set of abutting supporting columns connected through hot melt adhesive are arranged on the inner side of the spiral spring, and a three-way pipe is detachably installed on the exhaust hole; the air exhaust mechanism comprises air exhaust pistons movably arranged at the two ends of the three-way pipe, corresponding compression springs are installed between the air exhaust pistons in an extruded mode, and metal wires are fixedly connected between the air exhaust pistons. According to the invention, gas generated by thermal decomposition of organic matters in the coated sand can be discharged, so as to prevent the casting from generating defects such as pores and recesses.

This application relates to the field of building construction technology, and in particular to a roof slab formwork structure, including embedded components and multiple support components. The embedded components include multiple embedded frames, which are evenly spaced along a first direction, with one right-angled side of the embedded frame close to the outer side of the shear wall. The support components correspond one-to-one with the embedded frames and include a support base, multiple channel steels, and multiple plywoods. The support base includes a first end face and a second end face, which are perpendicularly connected. The first end face is attached to the right-angled side of the embedded frame near the outer side of the shear wall. The multiple channel steels are evenly divided into multiple groups, with two channel steels in each group. The multiple groups of channel steels are distributed along the first direction and are all connected to the top of the second end face. Two channel steels in each group are sequentially spaced along the second direction on the second end face. The plywoods are connected to the side of the channel steels away from the second end face. This application has the effect of increasing the stability and safety of the entire formwork system.

The invention provides a method for inhibiting blockage of a rare earth steel casting nozzle, which comprises the following steps of: before rare earth steel is cast, casting calcium treatment molten steel, and starting to cast the rare earth steel after the calcium treatment molten steel is cast; the molten steel subjected to calcium treatment comprises the following components in percentage by weight: 0.0020 to 0.0040 percent of Ca, 0.025 to 0.035 percent of Als, less than or equal to 0.0015 percent of T.O and less than or equal to 0.0020 percent of S; the rare earth steel is characterized in that T.O is less than or equal to 0.0015 wt%, S is less than or equal to 0.0010 wt%, Als is 0.030-0.050 wt%, and RE is 0.003-0.006 wt%. According to the method, a CaO-Al2O3-RE2O3 stable corrosion-resistant protective layer is generated on the inner wall of the nozzle through calcium treatment in the first furnace before rare earth steel casting and rare earth molten steel casting, direct contact and erosion reaction of rare earth elements and nozzle refractory are blocked, the generation condition of a chemical deposition layer on the inner wall of the nozzle is eliminated, and the nozzle nodulation and blockage risks are remarkably reduced.

This invention belongs to the field of metallurgical technology, specifically relating to a method for preparing industrial pure iron. The composition of this industrial pure iron, calculated by weight percentage, is: [C]≤0.01%, [Si]≤0.01%, [Mn]≤0.05%, [P]≤0.01%, [S]≤0.010%, [Al]: 0.03~0.05%, total oxygen ≤0.005%, with the remainder being Fe. By adding an oxygen barrier, calcium carbide, and aluminum granules to the LF refining furnace to create white slag, it is possible to achieve slag FeO≤1% while controlling the oxygen content of the molten steel at 0.05~0.09%, ensuring the decarburization requirements under non-oxygen blowing conditions in the RH furnace. After decarburization in the RH furnace, aluminum is added to remove oxygen from the molten steel, ultimately ensuring that the slag FeO content is controlled below 2%, enabling the smooth casting of small square billets containing aluminum steel.

The precoated sand mold comprises an upper mold body, a lower mold body, a casting block and a demolding assembly, an overflow runner is formed in the inner bottom wall of a lower forming groove, the demolding assembly comprises a liquid inlet air bag, a connecting header, a connecting branch pipe and a sliding plate, and sliding grooves are formed in the bottom face of the upper mold body and the top face of the lower mold body correspondingly; the sliding plate is arranged in the sliding groove in a sliding mode, liquid inlets are formed in the inner walls of the upper forming groove and the lower forming groove, alignment holes are formed in the sliding plate, an elastic piece is arranged at the bottom end of the sliding groove, the sliding plate extends out of the sliding groove under the action of the elastic piece in a natural state, and when the end of the sliding plate is flush with the bottom face of the upper die and the top face of the lower die, the alignment holes are formed. The alignment holes communicate with the liquid inlets, the liquid inlet air bag communicates with one end of the connecting header, the multiple connecting branch pipes communicate with the connecting header, and the multiple connecting branch pipes and the multiple liquid inlets are arranged in a one-to-one correspondence mode in the horizontal direction. The casting mold has the effect of improving the casting production and demolding quality.

The invention relates to the technical field of casting devices, and discloses a zinc ingot quantitative casting device and a method for using the same. The zinc ingot quantitative casting device comprises a base and a mounting plate arranged on one side thereof, a storage barrel is arranged above the base, the storage barrel is connected to the top of the base through a mounting frame, a casting barrel rotatably connected to the base is arranged below the storage barrel, and the casting barrel is communicated with the storage barrel through a connecting hose, a flip component for driving the casting barrel to rotate is arranged at the top of the base, and a quantitative component is arranged inside the casting barrel; the quantitative component at the top of the casting barrel can adjust the space inside the casting barrel, so that the zinc liquid cast each time is the same and the casting amount can be adjusted according to actual conditions, thereby ensuring the casting quality of the zinc ingot, and the quantitative casting is controlled by the quantitative component, and compared with the traditional pressure sensor or liquid level sensor for detecting the injection amount of the zinc liquid, the structure is more stable, not easy to be damaged, and the problem of low detection accuracy can be solved.

The utility model discloses a flywheel housing pouring gate structure, which relates to the technical field of flywheel housings, and comprises a base, the top of the base is fixedly connected with a movable block, and the outer side of the movable block is connected with a sliding block in a sliding manner; the outer side of the injection device is fixedly connected with the outer side of the sliding block; the bottom of the mold body is fixedly connected with the top of the base; wherein the injection device comprises a storage device, the outer side of the storage device is fixedly connected with the outer side of the sliding block, the bottom of the storage device is fixedly connected with an impurity removal device, the bottom of the impurity removal device is fixedly connected with an injection head, and the injection head is located above the mold body. The device is provided with the injection device, the injection device removes residual impurities and bubbles in flywheel shell raw materials, the impurity content in the raw materials is reduced, the situation that the bubbles and the impurities reduce the strength of the flywheel shell is avoided, and the machining quality of the flywheel shell is guaranteed.

The invention relates to the technical field of casting devices, and discloses a zinc ingot quantitative casting device and a using method thereof.The zinc ingot quantitative casting device comprises a base and a mounting disc arranged on one side of the base, a storage barrel is arranged above the base and connected with the top end of the base through a mounting frame, and a casting barrel rotationally connected with the base is arranged below the storage barrel; the casting cylinder is communicated with the storage cylinder through a connecting hose, the top end of the base is provided with an overturning part used for driving the casting cylinder to rotate, and a quantifying part is arranged in the casting cylinder; the quantitative part is arranged on the top of the casting barrel, the space in the casting barrel can be adjusted, so that the molten zinc cast every time is the same, the casting amount can be adjusted according to the actual situation, and the casting quality of zinc ingots is guaranteed; and compared with a traditional pressure sensor or liquid level sensor for detecting the injection amount of the zinc liquid, the structure is more stable, damage is not likely to happen, and the problem of low detection precision can be solved.