Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

76results about How to "Rigorous process" patented technology

Preparation method for low-temperature sintered tin-doped nano-silver soldering paste

The invention relates to a preparation method for low-temperature sintered tin-doped nano-silver soldering paste. According to the mass ratio of tin powder to a soldering flux, 90% of powder and 10% of the rosin soldering flux are prepared, wherein raw material of the powder is Sn element. A micron solder paste is prepared through stirring, the silver mass fraction is 90-99%, and the tin mass fraction is 1-10%; a nano-silver soldering paste and the micron solder paste are weighed and added with terpilenol to be dissolved, firstly mechanical oscillation is conducted by using a spiral oscillator, then ultrasonic oscillation is conducted by using an ultrasonic cleaner, and a mixture is obtained; and constant temperature bath and volatilization are conducted on the mixture at the temperature of 70 DEG C till the mixture is in a paste shape. Pressure is not added in the sintering process of the tin-doped nano-silver soldering paste, protection of inert gases is not needed, and the maximum sintering temperature is 235 DEG C. According to the preparation method for the low-temperature sintered tin-doped nano-silver soldering paste, the process procedure is well-conceived, and implementation is strict; and the sintering temperature of the low-temperature sintered tin-doped nano-silver soldering paste is lower than the sintering temperature of a traditional silver soldering paste, and compared with a pure nano-silver soldering paste, under the same sintering process, the connection strength of the low-temperature sintered tin-doped nano-silver soldering paste after being sintered is double of the connection strength of the pure nano-silver soldering paste.
Owner:TIANJIN UNIV

Processing technology for whole spherical iron piston

The invention discloses a processing technology for whole spherical iron piston, and the method comprises the following steps: step a, cutting a riser; step b, carrying out rough turning on a head, measuring the thickness and marking off; step c, carrying out rough turning on a spigot and an excircle, carrying out heavy boring on a pin hole and an end face, and carrying out rough turning on the excircle and a combustion chamber; step d, carrying out precipitation heat treatment; step e, carrying out finish turning on the spigot and milling a center hole; step f, carrying out semi-finish turning on the excircle, and carrying out semi-finish boring on the pin hole; step g, milling a table face; step h, drilling a deep hole; step i, turning a seat end face and turning a macropore; step j, drilling a hole; step k, carrying out finish boring on an internal space, drilling a straight hole and drilling a hinge screwed hole; step l, carrying out finish boring on the pin hole, milling an oil gallery, chamfering an vehicle shield ring groove and the pin hole, and tapping; step m, carrying out finish turning on appearance, carrying out finish turning on the ring groove and carrying out finish turning on the combustor chamber; step n, milling an avoided valve hole, opening the avoided valve hole, and drilling a hinge hoisting hole; step o, carrying out a hydrostatic test, laser quenching and fitter polishing, and spraying molybdenum disulfide. The processing technology for the whole spherical iron piston in the invention has the advantages of high process precision, rigorous process flow and superior processed product quality.
Owner:DALIAN BINCHENG PISTON MFG

Method for matching longitudinal waves with transverse waves for geophysical exploration

The embodiment of the invention provides a method and device for matching longitudinal waves with transverse waves for geophysical exploration. The method includes the steps that full wave train well logging data are utilized to determine phase and wave group characteristics of the longitudinal waves and converted transverse waves in a main interface; well control processing is respectively conducted on the longitudinal waves and the converted transverse waves; the polarity of the longitudinal waves and the polarity of the converted transverse waves are compared and phase correction is conducted; a data body including the speed ratio of the longitudinal waves to the transverse waves is acquired according to prestack data of the longitudinal waves; the data body is utilized to convert the converted transverse waves from the time domain of the converted transverse waves to the time domain of the longitudinal waves; identification layers which can stably track in whole research area are picked up and utilized to conduct fine horizon correction on the converted time domain of the converted transverse waves. The method and device are combined with seismic data processing, forward modeling, inversion and other measures, so that the method and device are reliable in theory and rigorous in process, and the longitudinal waves and the transverse waves can be well matched.
Owner:BGP OF CHINA NAT GASOLINEEUM CORP

Tin-bismuth jet printing soldering paste modified by silver powder particles and preparation method thereof

The invention discloses tin-bismuth jet printing soldering paste modified by silver powder particles. The tin-bismuth jet printing soldering paste modified by the silver powder particles comprises, byweight, 50 wt%-80 wt% of SnBi soldering paste and 20 wt%-50 wt% of conductive silver adhesive. The conductive silver adhesive comprises, by mass, 65 %-67% of Ag and 33%-35% of assistant. The assistant comprises bisphenol-A epoxy resin, a curing agent, a coupling agent, a diluent, an accelerant and a defoaming agent. The invention further provides a preparation method of the tin-bismuth jet printing soldering paste modified by the silver powder particles. According to the preparation method, the SnBi soldering paste and the conductive silver adhesive are respectively prepared; the prepared soldering paste and the conductive silver adhesive are evenly mixed at a corresponding ratio, and the tin-bismuth jet printing soldering paste modified by the silver powder particles are obtained. By theadoption of the technical scheme, the modified soldering paste mixed with the silver particles has good jet printing performance, the prepared jet printing soldering paste modified by the silver powder particles is free of lead and halogen, when used, the prepared jet printing soldering paste modified by the silver powder particles is environmentally friendly, harmless and good in wetting performance; and during jet printing, the spot diameters are uniform, the heights are identical, welding spots are smooth and full, and the mechanical performance is excellent.
Owner:ZHANGJIAGANG DONGDA IND TECH RES INST +1

System and method for predicting wellhead water content of low gas yield oil wells based on deep long-term and short-term memory networks

The invention relates to a system and a method for predicting the wellhead water content of low gas yield oil wells based on deep long-term and short-term memory networks. By a high-frequency double-loop capacitance sensor, the water content fluctuation information of a wellhead mixed fluid is measured, by performing windowing processing on the collected fluctuation time series of the water content, the collected fluctuation time series of the water content is divided into multiple time series-varying time segments, the time-frequency characteristics, non-linear characteristics, and time irreversible characteristics of each time-series segment are extracted to form characteristic vectors, thereby forming the wellhead water content characteristic vector time series. Afterwards, the extracted characteristic vector time series of the water content is used as the input of the deep long-term and short-term memory networks, and a model for predicting the water content based on the deep long-term and short-term memory networks and multiple characteristics is established. By adopting the model, the test value of the water content of the wellhead produced fluid is used as the water contentlabel for training, and finally the predicted value of the water content is obtained. Since the characteristic time series of the water content fluctuation signal is an accurate description of the wellhead produced fluid characteristics, such method can effectively eliminate the influence of a small amount of gas content at the wellhead on the measurement, and further improve the measurement accuracy of the water content of the wellhead produced fluid.
Owner:吴晓南

Method and system for obtaining IP (Internet Protocol) address of virtual machine in cloud computing platform

The invention provides a method and system for obtaining an IP address of a virtual machine in a cloud computing platform. The method for obtaining the IP address of the virtual machine in the cloud computing platform comprises establishing connection with a libvirt module in the cloud computing platform, obtaining a virtual machine list in the cloud computing platform through the libvirt module in the cloud computing platform, obtaining virtual machine names in the cloud computing platform through the libvirt module, obtaining running status of virtual machines in the cloud computing platform, and finally calling a shell command according to the running status of the virtual machines to obtain the IP address of the virtual machine. In the whole process, the virtual machine list, names and running status are sequentially obtained through the libvirt module and the IP address of the virtual machine can be obtained according to the shell command built in the cloud computing platform, the IP address of the virtual machine can be automatically obtained efficiently and accurately through a simple and strict processing process, efficiency during data interaction of the virtual machine with other devices can be improved and background control of the cloud computing platform can be facilitated.
Owner:HUNAN SHENGYUN TECH

Process for machining piston skirt

The invention discloses a process for machining a piston skirt. The process comprises the following steps of: a, shaping: checking the completeness of a die and a chilling block of the die before production; b, manufacturing a core which consists of a body core and a side binding core; c, smelting: when the temperature of a furnace is raised to 1,250 DEG C, sampling and testing, and adjusting components in the furnace; and when the temperature of the furnace is up to 1,520+/-10 DEG C, cutting off power and standing for preparation; d, closing a box and pouring: closing the box, fastening a box clamp, placing a pouring cup, pouring by using quantitative pouring ladles and preparing to lead air out during pouring, wherein the pouring speed is 7 to 9S and the pouring temperature is 1,430 to 1,400 DEG C; e, opening the box and cleaning: tapping a casting by using a hammer, taking a sand core out, removing a water gap and a dead head, and shoveling fins, flying edges and burrs of the casting; f, performing thermal treatment, normalizing treatment and tempering treatment on the casting; g, polishing the casting, and performing shot blasting and inspection; and h, performing aging treatment. The process for machining the piston skirt is high in machining precision, strict in process flows and higher in machined product quality.
Owner:DALIAN BINCHENG PISTON MFG

Internet home decoration customer information storage management method and system

The invention provides an internet home decoration customer information storage management method and system. The method comprises the steps of receiving customer information, and modifying a state identification to a customer source identification to be followed up; allocating the customer information to a customer manager, and modifying the state identification of the customer information to a customer source follow-up identification; displaying the customer information with the customer source follow-up identification through a customer source terminal; receiving a design application sent by the customer source terminal, and modifying the state identification of the customer information to a design identification to be allocated; allocating the customer information to a design department, and modifying the state identification of the customer information to a business identification to be followed up; displaying the customer information with the business identification to be followed up through a business terminal; receiving a signed notification sent by the business terminal, and modifying the state information of the customer information to a signed identification. The customer information is identified at different circulation stages, the management of the customer information is facilitated, the operation is simple, the configuration is flexible, and the process is rigorous.
Owner:DONG YI RI SHENG HOME DECORATION GRP

Cefodizime sodium for injection and preparation method of cefodizime sodium

The invention discloses cefodizime sodium for injection and a preparation method of the cefodizime sodium. A dispensation comprises the cefodizime sodium, the cefodizime sodium is contained in a glassbottle, a rubber plug is plugged at the bottle opening of the glass bottle, an aluminum-plastic cover is arranged at the top of the rubber plug, and the aluminum-plastic cover is capped at the bottomopening of the glass bottle. The preparation method of the cefodizime sodium for injection comprises the following steps that 1, a raw material is selected; 2, the raw material is preprocessed; 3, the raw material is subpackaged; 4, capping and sealing are conducted; 5, detecting and marking are conducted; and 6, labelling and packing are conducted, and a raw material drug, a glass bottle, a rubber plug and a plurality of aluminum-plastic covers are selected for standby application. According to the cefodizime sodium for injection and the preparation method of the cefodizime sodium, the wholemanufacturing process is clean, the hygienic conditions are good, the manufacturing process is smooth, seamless transition is achieved, the pharmacy efficiency can be greatly improved, the process isprecise, detection is strict, the quality of products can be effectively guaranteed, meanwhile the cost is controlled, waste is less, and generalization is convenient.
Owner:汕头金石粉针剂有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products