Month: October 2019

2019 ISO Certification and Inspection Update

Longyi updated ISO 9001:2015 certification in 2019 Congratulations!Longyi was first certified and certified by the ISO 9001 Quality Management System in 2004 and again certified to ISO 9001:2015 in 2019. Comprehensive quality control and strict production process control are our long-term business philosophy. We are ISO 9001:2015 certified. We will continue to provide better products and services and gradually establish and maintain customer loyalty. Certification, Longyi regularly receives quality control audits every year, and re-examines nuclear certification every three years to maintain international competitiveness. Longyi is ISO 9001:2015 certified and also ensures the ultimate quality and standardized business processes to our partners. The company has strict quality control and customized services, and is your trusted professional team.

Process flow and equipment list

Step1: Confirm Granulation Step2: Forming Cold Isostatic Pressing (CIP) Isostatic pressing technology is an advanced equipment for ultra-high pressure hydraulics, which is formed by using the product under uniform ultra-high pressure conditions in a closed high pressure vessel. According to the temperature during forming and consolidation, isostatic pressing technology is divided into three different types: cold isostatic pressing, hot isostatic pressing and hot isostatic pressing. Step3: Sintering Special Sintering Sintering Step4: Inspection Quality Control, QC Step5: Processing Grinding CNC Lathe CNC Mill CNC Mill CNC Mill Centerless grinding Centerless grinding Round grinding Quality Control, QC Quality Control, QC Materials Step6: Shipping Shipping Shipping Shipping Shipping Shipping

National Day holiday announcement

National Day holiday announcement We have closed on the following dates: 2019/10/10 ~ 2019 / 10/13 Please leave a message when there is urgent business demand during the holiday We will reply you as soon as possible. Thank you for your understanding and wish you all the best.

Micro Porous Ceramic

Micro Porous Ceramic LONGYI started the development of Micro Porous Ceramic in 2013. It’s main customers are semiconductors, solar energy and LCD. The product types are as follows: Vacuum Chuck Disco dicing chuck  Wafer heating stage  Wafer testing stage Air floating stage Vacuum Nozzle Die attach tools Air Bearing Work Holding For micro porous ceramics, the microstructure is made up of small crystals called grains. In general, the smaller the grain size, the stronger and denser is the ceramic material. The wide variety of applications for porous ceramic materials results from their unique properties. In many respects, these properties cannot be achieved by other materials. Properties Item   /  No. A-2000 B-2000 C-2000 D-2000                    Material Alumina Al2O3 % 96 92 96 95 Bulk Specific gravity g/cm3 2.28 2.28 2.28 2.1 Water absorption % 0 0 0 0 Porosity % 35~40 35~40 32~40 40~50 Pore size μm  2~3 5~10 15~20 30~40 Bending Strength MPa >60 >60 >60 >40 Bending kgf/cm2 >6 >6 >6 >4 Color White Black Brown Black

Boron Nitride (BN)

Boron Nitride (BN) Misoriented interphase boundary between BN (precipitate) and SiC grains (within a silicon nitride particulate-reinforced silicon carbide composite) Boron Nitride (BN), as one of the hardest and hardest materials, has a wide range of industrial applications. Although BN has a lower hardness than diamond, it is widely used in cutting tools due to its high chemical and thermal stability, especially for hardened steel materials. Product Name:Heater base Boron Nitride Customized BN Ceramic Precision Ceramic Processed ceramics Features: Boron nitride (BN) consists of boron-nitrogen covalent bonds and is commonly used as a refractory. Isoelectrically equivalent to the Sp 2 carbon lattice, BN is often compared to allotropes. Is a crystalline material synthesized from boric anhydride and pure low-ash carbon materials in an electric furnace at 1,800 ° C–2,500 ° C (3,300 ° F–4,500 ° F). Its hardness is about 3,800 HV and it has good cutting ability in the form of loose particles. However, the low oxidation temperature is 430 ° C (800 ° F) ▸◂Boron Nitride (BN) products made for customers▸◂ Alternate names▾Precision Ceramic Inquiry

Silicon Carbide (SiC)

Silicon Carbide (SiC) Image of part of a crystalline triple junction between SiC grains (within a silicon nitride particulate-reinforced silicon carbide composite) Product Name:SiC Ceramic Arm SiC ceramic arm Silicon Carbide arm Ceramic arms/Silicon Carbide SiC Arm Features: The heat and properties of SiC make it a wide range of applications. The main driving force of interest for SiC in electronic applications is high power, high frequency and high temperature devices that are resistant to radiation damage.It is the hardest of traditional abrasives, but has lower impact resistance than alumina and shows higher wear rates when used to grind steel. ▸◂Silicon Carbide (SiC) products made for customers▸◂ Alternate names▾RobotPick Stock▾AAR2 Alternate names▾Track Inquiry

Silicon Nitride (Si3N4)

Silicon Nitride (Si3N4) An amorphous phase trapped at a triple junction between Si3N4 grains (within a silicon nitride particulate-reinforced silicon carbide composite) Silicon nitride-based ceramics are particularly useful in engineering applications due to their excellent combination of properties. The high hardness and abrasion resistance make it particularly suitable for tribological applications.Usually used as a passivation layer for integrated circuits or micromechanical structures.Compared with silicon dioxide, silicon nitride has significantly better resistance to water and sodium diffusion. Silicon nitride is also used as a dielectric material for microelectronic or photonic applications. Product Name:Ceramic platform assembly P/N:RT_VL-5050000001-1 Silicon Nitride (Si3N4) Si3N4 platform Silicon Nitride (Si3N4) Si3N4 Platform Assembly Platform Silicon Nitride Platform Silicon Nitride Features: Silicon nitride has excellent strength and creep resistance at high temperatures, and is very resistant to thermal shock, making it an important high temperature structural ceramicIn a vacuum, applications are usually limited to below 1500 ° C because above this temperature, the silicon nitride surface is unstable and decomposes into Si. In air, silicon dioxide forms a layer on the surface of silicon nitride, a protective barrier that prevents further oxidation at temperatures up to about 1400 ° C. ▸◂Silicon Nitride (Si3N4) products made for customers▸◂ Alternate …

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Aluminium Oxide (Al2O3)

Aluminium Oxide (Al2O3) Alumina, Al2O3 , is a representative of bio-inert ceramics, which can be used in various fields, including industrial and semiconductor industries, based on its good mechanical properties and excellent wear resistance. Alumina can be modified by temperature, pressure and synthetic methods. Therefore, it represents more than a dozen crystal systems. Product Name:Industrial ceramic track Equipment Manufacturer:Hitachi Applicable equipment model:DB830 Hitachi DB830 Al2O3 ceramice track Ceramic track Features: White Color Precision Ceramic Components Alumina Ceramic Slide Track Sliding Gate Rail Product Name:Precision Ceramic Arm-ARM-WA-A1-01 Equipment Manufacturer:Tel alpha 8S Applicable equipment model:6 inch 7YTEL41N045 Precision Ceramic Arm Ceramic Arm 6inch Aluminium Arm Quoting: The ceramic arm of the semiconductor device is used to transfer the ground of the semiconductor device.The parallelism of the appearance surface is excellent, the internal material is evenly organized, and the external strength is high. It has been used in various semiconductor manufacturing plants for many years. Application: Precision ceramic arm has good structural strength under high temperature and high pressure environment. Use professional grinding equipment and aftertreatment. Appearance tolerances are more precise than traditional machining methods. Product Name:Precision Ceramic Arm-ARM-WA-A2-01 Equipment Manufacturer:Tel alpha 8S Applicable equipment model:8 inch ARM-WA-A2-01 Tel alpha 8S Ceramic Arm …

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Zirconia Oxide (ZrO2)

Zirconia dioxide (ZrO2) Zirconium dioxide (ZrO2) is a white crystal present in natural zirconia ore; its melting point is about 2700 ° C, its boiling point is about 4300 ° C, and its density is 5.89 g / cm 3 . Product Name:Index Table Equipment Manufacturer:Tokyo Weld Process:Tappping / Pcaking Applicable equipment model:6605/6610/66015 Quoting: Index table is  used to transport precision products with the indexing slots around the ring in testing/taping machine. For testing machine, the index table is a carrier mainly used to test on the electrical properties of electronic components such as capacitance, insulation, resistance and withstand voltage resistor, capacitor, and inductance. On the other hand, for taping machine, the index table holds the MLCC in the indexing slots, then rotates and indexes into the designated taping strip according to the size and quantity requirements. Mostly used for chip component tape packaging. Application: The main functions of the index tables are applied in the testing/taping machines to: Deliver products in the circumferential/straight direction Achieve precision segmentation for the products Testing/taping machine Chip Resistor: A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistors can also be used to …

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