40results about How to "Uniform heating area" patented technology

The invention provides a flexible induction heating power supply used for demounting and mounting a blower bearing and a control method of the flexible induction heating power supply. The flexible induction heating power supply comprises an induction heating power supply main circuit, a control circuit, a drive circuit and a protection circuit. The induction heating power supply main circuit is connected to an alternating current network to receive the alternating current. The control circuit generates PWM (pulse width modulation) signals. The drive circuit is connected between the control circuit and the induction heating power supply main circuit to receive the PWM signals generated by the control circuit so as to drive the induction heating power supply main circuit. The protection circuit is connected to the induction heating power supply main circuit to prevent the same from at least one of overvoltage, overheating, overcurrent and phase loss. The induction heating power supply main circuit is driven by the drive circuit to generate voltage signals and applies the voltage signals to a multi-core cable winding round the blower bearing, in this way, the multi-core cable is inducted and heated. So that a clearance occurs between the blower bearing and a blower spindle for the temperature difference, and the blower bearing is convenient to demount and mount.

The invention discloses an efficient continuous vacuum microwave drying machine and belongs to the field of drying processing machines which can keep the vacuum degree under the condition of continuous feeding and discharging of materials in a solid state or a semi-liquid state or other states of food products, Chinese herbal machine products, chemical products and agricultural and sideline products. The efficient continuous vacuum microwave drying machine is mainly provided with a feeding conveying belt, a rotary drum type feeding / discharging sealing device, a vacuum chamber, a heating device, a microwave magnetic-control device, a material conveying belt, a material turning device, a vacuum recovering system and a cleaning device. According to the drying machine, by the adoption of a steam and microwave combined heating drying way, energy and time can be saved by over 20%-30% compared with a single microwave heating drying way or a single steam heating drying way; the material turning device and the cleaning device for processing solid materials and semi-liquid materials are arranged, a condensation recovering device is added into the vacuum system, in this way, fragrant gas can be collected and converted into liquid, beneficial gas, poisonous and harmful gas, inert gas, gas prone to oxidation, combustible and explosive gas and the like can be recycled, high quality and high benefits of processed products can be achieved, environment protection is facilitated, and social comprehensive benefits are also facilitated.

The invention discloses a production technology of a structural core material set. The production technology includes the following steps that first, cork wood is machined; second, a PVC board is machined; third, the cork wood and the PVC board are spliced. In the first machining step, firstly, a cork wood board is machined according to a drawing, flat cut according to required thickness and sanded so that the surface of the cork wood can be smooth; coating, cloth attachment, punching and grooving are performed; the cork wood enters a numerical control saw so that the procedures of synchronous lineation, edge cutting and angle cutting can be performed; soot blowing and laying repairing are performed so that the cork wood board can be obtained. In the second machining step, the PVC board is machined according to a drawing, flat cut according to the required thickness and sanded so that the surface of the PVC board can be smooth; cloth attachment, punching and grooving are performed; the PVC board enters a PVC board numerical control machining device so that the procedures of synchronous lineation, edge cutting and angle cutting can be performed; soot blowing and laying repairing are performed so that the PVC board can be obtained. The numerical control device is adopted for machining in the production technology, the production efficiency of products is improved, the defective rate is decreased, and production cost is saved.

The invention discloses an X-shaped continuous rolling and shrinking machine for aluminum electric heating tubes with four fins, which comprises a main body frame and an X-shaped tube. Foot cup, the upper end surface of the electrical box is provided with a row of wave box motors, the mold axis on the left side is connected to the lower pressing wheel shaft, the upper pressing wheel shaft and the inner end of the lower pressing wheel shaft are connected to gears, and the upper and lower adjacent gears are connected to each other. Engagement, the inner end of the lower pressing wheel shaft is also connected to the rotating shaft of the wave box motor through a connector, the upper side of the front end of the main body frame is provided with a discharge motor, and the x-shaped tube is arranged between the wheel molds. The X-shaped continuous calendering and shrinking machine for aluminum electric heating tubes with four fins is used to continuously reduce the diameter of the processed pipes through 12 sets of molds, and it is rolled out continuously at one time. The processed products have good density, straightness, The surface is smooth and smooth, the heating area is more uniform, more energy-saving, and the production efficiency is greatly improved. The production efficiency is more than ten times that of the traditional production process.