39results about How to "Precise control of processing time" patented technology

The invention relates to a water glass waste sand regeneration treatment method used for casting. The water glass waste sand regeneration treatment method comprises the following steps that (1) waste sand is pretreated; (2) the pretreated sand in the step (1) is put into a high-temperature furnace and treated for 10-15 min at the temperature of 523 DEG C-525 DEG C, the mixed gas of nitrogen and oxygen is introduced into the high-temperature furnace in the treatment process, the introducing speed of the mixed gas is 0.85-0.9 m<3>/min, and secondary treatment sand is obtained; and (3) the secondary treatment sand is subjected to magnetic separation through a magnetic separator, the secondary treatment sand subjected to magnetic separation treatment is crushed, passes a 60-mesh screen and is then washed, and the washed secondary treatment sand is dried at the temperature of 55 DEG C, so that regenerated sand is obtained. The residual quantity of Na2O treated through the water glass waste sand regeneration treatment method is reduced to about 0.05%, the treated waste sand can be again used as new sand, and waste liquid treated through the method can be recycled, so that the treatment cost is reduced.

The invention provides an ozone concentration intelligent measurement and control apparatus for a fruit and vegetable cold storage and an environment space. The apparatus comprises three main parts, namely a two-wire system ozone transmitter; a system control box consists of an intelligent measurement and control instrument, a micro computer time control switch, a solid state relay and a 24V DC source; and an ozone generator. The two-wire system ozone transmitter is installed in the fruit and vegetable cold storage and the environment space; the ozone concentration change inside the cold storage is converted to 4-20 milliampere current change and is output to the intelligent measurement and control instrument by exchanging the ozone sensor on the two-wire system ozone transmitter with the gas inside the fruit and vegetable cold storage, and then compared with a parameter set on the intelligent measurement and control instrument to emit a relay on-off signal; the micro computer time control switch can set different processing times and intervals based on requirement to connect the intelligent measurement and control instrument relay and the micro computer time control switch relay in series, so that the intelligent measurement and control instrument relay and the micro computer time control switch relay can control the on-off of the solid state relay together, and the purpose of automatically controlling the on-off of the ozone generator is realized.

The invention provides a method for carrying out heat treatment on a workpiece by utilizing manually opened windows and a high-temperature-resistant ceramic material. In the method, a heat treatment device is used. The device comprises four container assemblies, a ring support (30), a heat treatment assembly and four lifting assemblies, wherein the heat treatment assembly comprises a heating device (6), an oil-quenching device (7), a tempering heating device (8) and a cooling loading and unloading device (9), which are uniformly arranged on the bottom of the ring support (30) along the peripheral direction of the ring support (30); each lifting assembly comprises a motor (5), an inner sleeve (3), a screw rod (2) and an outer sleeve (4); each container assembly comprises a container (1) and a driving assembly, and the containers (1) are used for containing the workpiece.

The invention belongs to the field of cooker deburring, particularly relates to a cooker deburring turning device and method. Aiming at solving the problems that an existing cooker deburring turning device is inconvenient to fix a cooker, low in cooker deburring efficiency and incapable of removing dust generated in the deburring process and reduces the air quality, the invention provides a schemeas follows: the cooker deburring turning device comprises two first supporting plates, wherein the tops of the two first supporting plates are fixedly connected with the same base, two sides of the top of the base are fixedly connected with second supporting plates, the tops of the two second supporting plates are fixedly connected with the same top base, the top of the top base is fixedly connected with a water tank, the bottom of the base is fixedly connected with a driving motor, and an output shaft of the driving motor is fixedly connected with a driving shaft. According to the invention,the cooker can be fixed conveniently, the deburring efficiency of the cooker is high, and meanwhile, dust generated in the deburring process can be removed.

The invention provides a workpiece heat treatment method utilizing a position signal reading device and a manual opening window. A heat treatment device is used. The heat treatment device comprises four container assemblies, an annular support, a heat treatment assembly and four lifting assemblies, wherein the heat treatment assembly comprises a heating device, an oil quenching device, a temperingheating device and a cooling loading and unloading device, and the heating device, the oil quenching device, the tempering heating device and the cooling loading and unloading device are uniformly arranged at the bottom of the annular support in the circumferential direction of the annular support; each lifting assembly comprises a motor, an inner sleeve, a screw rod and an outer sleeve; each container assembly comprises a container and a driving assembly; and the containers are used for containing workpieces.

The invention provides a workpiece heat treatment method using a circular rotation plate and a position signal reading device, wherein a heat treatment device is used; the device comprises four container components, an annular frame (30), a heat treatment component and four lifting components; the heat treatment component comprises a heating device (6), an oil quenching device (7), a tempering and heating device (8) and a cooling, assembling and disassembling device (9) which are evenly arranged at the bottom of the annular frame (30) along a peripheral direction of the annular frame (30); each lifting component comprises a motor (5), an inner sleeve (3), a screw rod (2) and an outer sleeve (4); each container component comprises a container (1) and a driving component; and a container (1) is used for holding workpieces.

The invention provides a workpiece thermal treatment method using three axial grooves and a contact sensor. A thermal treatment device is used in the workpiece thermal treatment method and comprises four container components, an annular bracket (30), a thermal treatment component and four lifting components, wherein the thermal treatment component comprises a heating device (6), an oil quenching device (7), a tempering heating device (8) and a cooling loading and unloading device (9) which are uniformly arranged at the bottom of the annular bracket (30) along the circumferential direction of the annular bracket (30); each lifting component comprises a motor (5), an inner sleeve (3), a screw (2) and an outer sleeve (4); each container component comprises a container (1) and a driving component; the containers (1) are used for containing workpieces.

The invention provides a method for carrying out heat treatment on a workpiece by utilizing a position signal reading device and a contact sensor. In the method, a heat treatment device is used. The device comprises four container assemblies, a ring support (30), a heat treatment assembly and four lifting assemblies, wherein the heat treatment assembly comprises a heating device (6), an oil-quenching device (7), a tempering heating device (8) and a cooling loading and unloading device (9), which are uniformly arranged on the bottom of the ring support (30) along the peripheral direction of the ring support (30); each lifting assembly comprises a motor (5), an inner sleeve (3), a screw rod (2) and an outer sleeve (4); each container assembly comprises a container (1) and a driving assembly, and the containers (1) are used for containing the workpiece.