Other

Hangzhou Sanhua Research Institute Co., Ltd.

Zhejiang University

Zhejiang Jiuzhou Pharmaceutical Co., Ltd.

Zhejiang Fenglong Electrical Machinery Co., Ltd.

Epc Product LLC

Chengdu Qianjia Technology Co., Ltd.

Zhejiang Sanhua Intelligent Controls Co., Ltd.

Bin Zhang

Tao Wang

Jun Zhu

Yaping Dai

Yuanqiang Li

Daqing Che

Jiang Li

Qi Li

Yaofeng Lan

Liang Ma

Zhengxiu Fan

Junxiao Jiang

Meijun Zheng

Wei Ye

Guoliang Zhu

Bo Zhang

Huayong Yang

Lulu Zhang

Wangfu Zhang

Hongjun Gao

Jinlan Xie

Xianyi Zhang

Shuang Li

Pucha Yan

Yong Zhao

Wenfa Ye

Lingfeng Qian

Junyan Zhang

Xiaowei Hu

Yunhua Hu

Yuanlie Yu

Teng Yang

Hua Ye

Qian Xue

Teruo Umemoto

Yichen Luo

Fuzeng Niu

Liangwei Shen

Xingkai Zhang

Tianhao Zhu

Li Qiang

Xiaocong Zhou

Kaixiong Gao

Hongtao Zhang

Nail polish bottle

The present invention provides a 3D printing method for a complex curved hollow structure. The 3D printing method comprises the following steps: firstly, manufacturing a bottom die attached with the complex curved hollow structure, and molding the complex curved hollow structure on a molding surface C of the bottom die by taking the bottom die as a support, wherein the molding of the bottom die and the molding of the complex curved hollow structure are completed in the same world coordinate system, and the bottom die does not need to be taken down from an objective table and then transplanted into a printing system of a to-be-molded part. The 3D printing method has the advantage that a high-precision complex curved hollow structure can be manufactured.

3D printing method for complex curved hollow structure, and printer

A multi-nozzle concurrent printing system includes a plurality of extrusion type nozzle assemblies, a three-axial translation mechanism and an objective table. Each nozzle assembly is provided with a nozzle, a storage barrel and a temperature control module; the three-axial translation mechanism includes an X-axial translation unit, a Y-axial translation unit and a Z-axial translation unit, and the nozzle assemblies are mounted on the Z-axial translation unit; and there are a plurality of nozzle assemblies, the printing system is provided with a concurrent calibration sensor, and the concurrent calibration sensor is taken as an original point of a coordinate system of the printing system. The printing system is provided with the plurality of nozzle assemblies which can work cooperatively or sequentially, the printing mode is flexible and changeable, and non-uniform mixing system forming of materials can be realized; and stable output of the materials in a formal printing task is guaranteed.

Multi-nozzle concurrent printing system

Bottle for nail glue

Nail dryer

Provided are an electronic expansion valve, a control system, and a control method, including: a step motor and a Hall sensor; the step motor includes a rotor and a stator; the rotor includes a permanent magnet; the Hall sensor is provided on the outer periphery of the permanent magnet; the Hall sensor and rotor are arranged in the radial direction, and the stator and Hall sensor are arranged in the axial direction; the main-body part of the Hall sensor is used for sensing the magnetic pole change of the permanent magnet; such a structure reduces the effect that an operating environment has on the Hall sensor when detecting a signal.

Electronic expansion valve, control system, and control method

The present application provides a gas alarm replacement warning method and device, and an electronic apparatus including the device. The method is applied to a gas alarm including a gas-sensitive element. The method includes: collecting signal data of the gas alarm; analyzing the current use state of the gas alarm based on the signal data; determining a dynamic model of the expected service life of the gas alarm according to the current use state, and calculating the expected use duration of the gas alarm; determining whether the actual use duration of the gas alarm is greater than the expected use duration; and if so, outputting a replacement prompt signal. Therefore, based on the expected service life of the gas alarm, when the use duration of the gas alarm approaches the expected service life, a replacement prompt signal is issued to solve the problem of untimely replacement of the gas alarm and ensure the safety of indoor gas use.

Gas alarm replacement warning method and device, and electronic apparatus including the device

A control method and a control system are provided. A valve closing position of a valve device can be controlled according to the current flow direction or working mode of a refrigerant. A stroke of the valve device from a fully-opened position to a fully-closed position is defined as a total valve closing stroke. When the flow direction of the refrigerant is a forward direction, the valve device is controlled to operate at a first valve closing position, and when the flow direction of the refrigerant is a reverse direction, the valve device is controlled to operate at a second valve closing position. The first valve closing position is different from the second valve closing position, such that wear caused by valve closing can be reduced.

System and method for controlling an expansion valve

A method for preparing a super-lubricative multi-layer composite fullerene-like carbon layer/graphene-like boron nitride thin film is provided. A substrate is ultrasonically cleaned in absolute ethyl alcohol and acetone sequentially for 15 min. The substrate is cleaned by argon plasma bombardment for 15 min. A fullerene-like carbon layer A having an onion-like structure is prepared by high-vacuum medium-frequency magnetron sputtering for 30 s. A graphene-like boron nitride layer B is prepared by high-vacuum medium-frequency magnetron sputtering and coating device to sputter the elemental boron target for 30 s. Steps (3) and (4) are repeated 80 times to overlay the fullerene-like carbon layer A and the graphene-like boron nitride layer B in an alternate way. The super-lubricative multi-layer composite fullerene-like carbon layer/graphene-like boron nitride thin film has a large load capacity, and excellent wear resistance, high temperature resistance and super lubrication.

Method for preparing super-lubricative multi-layer composite fullerene-like carbon layer/graphene-like boron nitride thin film

A control system for controlling operation of an execution device is provided. The control system includes a master controller, a microprocessor, and a signal line. The master controller is configured to send a control signal to the microprocessor via the signal line. The microprocessor is configured to send the control signal to the execution device to drive the execution device to operate, acquire, at a time interval, a feedback signal representing an operation state of the execution device, and send the feedback signal to the signal line. The master controller is further configured to acquire the feedback signal from the signal line, determine, from the feedback signal, the operation state of the execution device, and regulate the control signal based on the operation state.

Control system and control method

Provided are an electronic expansion valve, a control system, and a control method, including: a step motor and a Hall sensor; the step motor includes a rotor and a stator; the rotor includes a permanent magnet; the Hall sensor is provided on the outer periphery of the permanent magnet; the Hall sensor and rotor are arranged in the radial direction, and the stator and Hall sensor are arranged in the axial direction; the main-body part of the Hall sensor is used for sensing the magnetic pole change of said permanent magnet; such a structure reduces the effect that an operating environment has on the Hall sensor when detecting a signal.

Disclosed is a complementary analog and digital method for controlling ignition of a gasoline engine. First, analog ignition is performed by means of an analog trigger circuit. After power has been steadily supplied to a microcontroller, the microcontroller disconnects the analog trigger circuit, starts to collect a digital trigger reference signal and turn on a digital trigger circuit, and switches to a digital signal to trigger ignition. Also disclosed is a complementary analog and digital system for controlling ignition of a gasoline engine.

Combined analog-digital gasoline engine ignition method and device

Growing community of inventors

Zhejiang, China

Bin Zhang