Offers to Sell

If you are interested in our products, you can contact me at any time. WhatsApp/Signal/Telegram/Skype/LINE:+ , 852 61374953 95958-84-2 Proton Nitride 119276-01-6 Proton Nitride (hydrochloride) hydrochloride 14680-51-4 Metoprazine 14188-81-9 Isozyme 71368-80-4 Bromozolam 2647-50-9 Flubrozepam 2894-68-0 Diclorazepam 2-Chlordiazepam 40054-69-1 Etizolam 17764-18-0 EU 802855-66-9 Eutylon EU 14530-33-7 A-PVP, APVP, apvp, a-pvp 1189805-46-6 4MMC, 4-methylmethcathinone Mephedrone, 1-(4-methylphenyl)-2- methylaminopropane-1-one< , br> 1246816-62-5 3MMC, 3-methylmethcathinone (hydrochloride) 1354631-33-6 4 mph, 4 mph 14461-91-7 Cyproconazole 1451-82-7 2-bromo-4'-methylpropiophenone 109555-8 , 7-5 1'-Naphthoyl Indole 208987-48-8 JWH 073, (1-butyl-1H-indol-3-yl)-1-naphthalenyl-methanone 209414-07-3 JWH 018,1-naphthalenyl(1-pentyl-1H-indol-3-yl)-methano , ne 137350-66- 4 5CLADB, ADBB, 5cladbb 1715016-75-3 5F-ADB, 5F-MDMB-PINACA, 5fadb 2390036-46-9 4F-ADB 4fadb 4f-adb 4FADB 4F -MDMB-BINACA 4F-ADB 28578-16-7 PMK, ethyl glycidate 5449-12-7 BMK 20320-59-6 BMK, Diethyl(phenylacetyl)malonate 52190-28- 0 PMK 5413-05-8 BMK, ETHYL 2-PHENYLACETOACETATE 16648-44-5 BMK Methyl 2- phenylacetoacetate 13605-48-6 PMK methyl glycidate 1314093-06-5 PMK L-Lysine, L-prolyl-L-methionyl- 79099-07-3 N-(tert-Butoxycarbonyl)-4-piperido 125 541-22- 2 1-Boc-4-(Phenylamino)piperidine 288573-56-8 - 1-Piperidinecarboxylicacid, 4- [(4-fluorophenyl)amino]-, 1,1-dimethylethyl ester 49851-31-2 2-BROMO-1-PHENYL- PENTAN-1-ONE 62-44-2 Phenacetin 2732926-24-6 N-desethyl Etonitazene 23076-35-9 Xylazine Hydrochloride 7361-61-7 Xylazine 102-97-6 N-Isopropylbenzylamine 14030-76-3 Etodesnitazene 2732926-26-8 2785346-75-8 itazepyne 2894-61-3 Bromonordiazepam WhatsApp/Signal/Telegram/Skype/LINE:+852 61374953

Minimum Order: 1 bags

Benefits you will get with EDS machines: Benefit A. Saving production time (Max cutting speed: 1800mm2/min) Benefit B. Saving tool cost (the electrode is cheaper: around 1.2USD/pcs) Benefit C. Saving material cost (the cutting gap is smaller: 1.5-2mm) I.The machine characteristics: (1)The machine utilizing anodic machining principle, cutting special steel that can’t be easily cut, such as high-temperature heat-resistant alloys, high chromium, high nickel alloy, titanium alloy. It can also cut steel rail. (2)The cutting efficiency is high, the maximum cutting speed is 1800mm2/min (3)Use steel as the electrode, the cost is rather lower (4)Cutting gap, ≤2mm, save precious steel II. Specification Model No. EDS350 EDS600 EDS1100 , Max. cutting diameter φ350mm φ600 mm φ1100 mm Max. workpiece width 810mm 1000mm 1100mm , Max. cutting travel 400mm 750mm 1200mm , Max. cutting length Unlimited Unlimited 50 , 0mm Worktable dimensions 800x2000mm 1800x900mm , 1200x2500mm Worktable moving travel 800mm 800mm 800mm & , lt; , br>Max cutting speed 1800mm2/min 1800mm2/min 1800mm2/min Max. worktable load 2500kg 3000kg 20000kg Electrode size 0.7～1.2(thickness)x25-40(W)x7420(L)& , lt; , br> 0.7~1.2(thickness)x25-40(W)x9550（L）& , lt; , br> , 0.7~1.2(thickness)x25-40(W)x9550（L） Cutting gap ≤2mm ≤2mm ≤2mm & , lt; , br>Electrode Material Steel steel steel Max. output current 500A 800A 1000A Controller German Siemens German Siemens German Siemens Feeding motor Japan Panasonic AC servo motor Japan Panasonic AC servo motor Japan Panasonic AC servo motor III. Introdution of Electrical Discharge Sawing machine. 1、Working theory The machine utilizing anodic machining principle, cutting special steel that can’t be easily cut, such as high-temperature heat-resistant alloys, high chromium, high nickel alloy, titanium alloy. And the electrode is the mild steel, which is running fast on the pulleys. The work piece is positioned on the worktable. And the mild steel electrode connects with the plus end of the power supply. And the work piece to the minus end of the electrical power supply. There is a flushing device which can supply sodium silicate solution (the coolant) to the cutting area. The electrical discharging happens continually between the mild steel and the work piece according to the drawing. 2、Simple description The machine is equipped with the main machine body, working liquid system and controller. 1) The main machine body The machine is gantry structure which is made up with the worktable parts, moving crossbeam and upright column the motorized electrode, etc. ⑴ Worktable The worktable is used for holding and adjusting the work piece. The worktable moves from point to point or continually, derived by the motor and couple and ball screw on the V guide way of the machine body. ⑵ Device of running the belt type steel electrode. This device has functions of running& guiding and controlling the tension of the belt type electrode steel and also the function of higher power supply feeding, and checking and protection of belt-breaking. The belt type steel electrode is running on the driving pulley and slave drive ones which are installed on the both holders of two ends of the crossbeam. The driving pulley is moved by the 3 phases motor and the slave drive pulley by hydraulic pressure. The belt type steel electrode is guided with two guiders in order to make sure the electrode is under good tension condition. And the belt type steel electrode tension can be adjusted by the hydraulic pressure. In case the belt type electrode breaks or the tension is weak, the alarm will appear at once and the machine will stop working too. The power supply feeds through the pulley, installed with the power feed brush, pulley axle and to the belt type steel electrode. The steel belt electrode is held by four sets of guiders in order to make the electrode running in the same surface of the work piece cross section and make the cutting gap as small as possible. There are flushing mouths on the guiders, which offer the working liquid to the cutting area. ⑶ Upright column and device of the motorized belt type steel electrode. The device of the motorized belt type steel electrode is moved by the A/C servo motor which drives the gear reducing mechanism with ball screw. So the belt type steel electrode can move to/away the work piece. The upright columns are installed the linear guide ways, which hold the device of the motorized belt type steel electrode. In order to make the device move flexibly and reduce the loading of the servo motor, there are the weight balance parts connected with the device of the steel electrode by a roller chain inside of the upright columns. The limited switches are installed on the device of the motorized electrode. And there is a traveling ruler near to the device for the operator to check the travel during working. 2、The system of working liquid The working liquid is taken to the flushing mouths by pump. And then it flushes to the work piece by the adjustable mouths and return to the collecting tank. The liquid after filter can be used repeatedly. The supplier will supply the way how to mix the working liquid and the installation floor plan. And the end user designs and builds the liquid tank and the collecting liquid path according to the floor plan and also the workshop area. 3、Electrical power supply and control ⑴machining electrical power supply The machine applies the special linear transform to exchange the 3 phases A/C electrical power into the lower voltage and high current working power supply. Main specification of the power supply: Input：3 Phases 380V 50Hz Output：32V～50V divided into adjustable 4 levels. Max machining current：500A/800A/1000A subject to different models. ⑵Controller system The machine applies the programmable PLC to control the running of all kinds of functions stable. The power units are 3 phases asynchronous motors expect the Panasonic A/C motor that drives the device of the belt type steel electrode. All motors return circuits are installed with the protecting switches to avoid the overloading. The system of the auto feeding steel electrode can inspect the discharging gap in real time, and it will adjust the feeding speed automatically according to the working situation in order to make the cutting under the stable and efficient condition.

Minimum Order: 1 bags

WhatsApp/Signal/Telegram/Skype/LINE:+852 61374953 Hot selling products CAS: 14680-51-4 Metonitazene CAS: 119276-01-6 Protonitazene hydrochloride CAS: 28578-16-7 2-Oxiranecarboxylicacid CAS: 2785346-75-8 Etonitazepyne CAS: 28578-16-7 PMK CAS: 20320-59-6 BMK CAS: 71368-80-4 Bromazolam CAS: 17764-18-0 Eutylone CAS: 395723-23-1 MTTA CAS: 4551-92-2 2fdck 5CL-ADBA ADBB A-PVP jwh-018 CAS: 2732926-24-6 N-Desethyl Isotonitazene first-rate, attractive and reasonable price High purity 99% white Powder Advantages: High quality and competitive price. 1. We can provide samples for testing. 2, all purity >99%. As a manufacturer, we can provide high quality products at factory prices. Fast and safe delivery. 1. The package can be delivered within 3-5 working days after receiving the payment tracking number. 2. Safe and secure transportation mode for you to choose. 3, customs clearance qualified rate > 99%. 4. We have established a long-term and stable cooperative relationship with DHL, FedEx, TNT, UPS and HK EMS. If the parcel is lost, we will replace it for free. Our customers are all over the world. 1, professional service and rich experience to reassure customers, sufficient inventory and fast delivery to meet customer needs. 2. Feedback from the market and merchandise would be appreciated. It's our duty to meet the customer's requirements. 3. High quality, competitive price, fast delivery, first-class service to win the trust and praise of customers. Prices can be reduced contact us on. WhatsApp/Signal/Telegram/Skype/LINE:+852 61374953

Minimum Order: 1 bags

Chemical Names: Styrene (ST), methyl methacrylate (MMA) and methyl methacrylate (GMA) copolymer English Name : 2-Propenoic acid, 2-methyl-, oxiranylmethyl ester, methyl methacrylate, polymer with ethenylbenzene Formula : (C21H28O5)n Molecular Weight : 6500-7200 CAS No : 1191261-43-4 Technical Properties Appearance:                           white powder or granular Non-volatile-matter content:   > 98% Epoxy equivalent:                   280-310 g/mol Application Features KL-E4370 is an polymeric epoxy functional chain extender. In its structure, the epoxy functional group can realize the expansion chain of the polymer through reacting with the terminal hydroxyl groups, terminal carboxyl groups and terminal amino groups of polycondensation resin. Thus achieving the purpose of improving polycondensation resin viscosity characteristics, mechanical properties and inhibiting the hydrolysis of polymers. KL-E4370 chain extenders are blended with modified resins by a double screw extruder, single screw extruder. The recommended dosage is 0.2-1.5 % used in bio-based and biodegradable plastics (such as PLA, PPC, PBS, PHA, etc.) and 0.2-2.0% used in the condensation recycled plastics (such as PET, PBT, PC, PA ,etc.).The specific amount depends on the number of active functional groups and performance requirements of products. Sanitation & Safety Acute toxicity test: KL-E4370, an extender, oral LD50(rat)> 5000mg/kg. bw, which is a low-grade substance. Handle with due care and avoid dust formation and keep away from ignition sources. Packaging The fiber tube lined with plastic bags. Storage It should be stored in dark, cool, dry and sealed conditions.

Minimum Order: 1 bags

WhatsApp/Signal/Telegram/Skype/LINE:+852 61374953 5cladbb fadb 4fadbb 5cladbb sgt78 584-08-7 584-08-7High quality items such as euty. bmk bk, pmk, 2fdck api fdck 22-2 13605 etc CasNo: 5413-05-8 api api apihp pvp Molecular Formula: C8h12o6 Appearance: White powder Application: CAS:5413-05-8Appearance:White crystall... DeliveryTime: 1-3 days after received your payment PackAge: BOTTLE, Plastic Container, Vacuum Pac... Port: Tianjin ProductionCapacity: 200 Kilogram/Month contact details: WhatsApp/Signal/Telegram/Skype/LINE:+8 , 52 61374953

Minimum Order: 1 bags

Laser Tungsten Copper Bar Tungsten-copper alloy is a pseudo alloy. Tungsten and copper are not miscible. It combines the high thermal conductivity, high melting point, and low thermal expansion coefficient of tungsten with the high thermal conductivity of copper. The ratio of tungsten to copper can be adjusted arbitrarily as WxCuy, where x+y=100. The table below shows only a portion of the commonly used grades. Our tungsten-copper alloy can achieve nearly completely dense, defect-free, fine- grained structure. The helium mass spectrometer leak detection material's airtightness is <5x10-9 Pa/m3.s, which is comparable to foreign products.

Minimum Order: 10 long tons

Silicon aluminum series Silicon aluminum is a metal ceramic material that maximizes the low density and high thermal conductivity of aluminum, while also possessing the low thermal expansion and high thermal conductivity of silicon. It is primarily utilized for aerospace packaging tube shells. Silicon aluminum is a material that substitutes aluminum silicon carbide. While its thermal conductivity is slightly lower than that of aluminum silicon carbide, it has lower hardness and better machining performance. In addition to the grades in the table below, we can also provide gradient silicon aluminum materials.

Minimum Order: 10 long tons

Molybdenum copper series Molybdenum-copper alloy is also a pseudo alloy. Molybdenum and copper are not miscible. It fully combines the high thermal conductivity, high melting point, low thermal expansion coefficient, and high thermal conductivity of molybdenum. The ratio of molybdenum to copper can be adjusted arbitrarily, MoxCuy, where x+y=100. The following table shows only a portion of the commonly used grades. Our molybdenum-copper alloy can achieve almost completely dense, defect-free, fine-grained structure. The air tightness of the helium mass spectrometer leak material is <5x10-9 Pa/m3.s, which is comparable to foreign products. Compared with tungsten copper, molybdenum copper has lower density and better rollability, making it suitable for the production of thin strip products. Additionally, molybdenum copper can be stamped, making it suitable for the cost-effective mass production of heat sink parts.

Minimum Order: 10 long tons

Laser Tungsten Copper Bar Lasers come in many different qualities, and carbon dioxide lasers are still used in certain specific situations. However, solid-state lasers are currently the main type, and semiconductor lasers are the most common. The use of "crystal" oxygen-free copper heat sinks was prevalent over a decade or two ago. The power density was relatively low, and tin was typically used as solder. Oxygen-free copper heat sinks can be utilized, nickel-plated instead of gold-plated, but gold-plated soldering offers better reliability. The tungsten copper bar structure was developed to meet the demands for high power, high reliability, and long lifespan. Early lasers primarily utilized tungsten copper C-Mount structures, which later transitioned to tungsten copper bars. Initially, W85Cu15 was predominant, but currently, W90Cu10 is the main composition. It is suggested to experiment with W93Cu7 in the future. Tungsten copper bars serve as conductors, heat sinks, and chip carriers. Gallium nitride chips are sandwiched between them and soldered with gold-tin solder. Several laser modules utilize tungsten copper bars, varying from a few to dozens of pieces. In the early days, about 10 years ago, the power of laser chips was not high, and the requirements for tungsten copper bars were not stringent. Now, the power is increasing, and the demands for tungsten copper bar size accuracy, thermal expansion coefficient matching, thermal conductivity, and coating bonding are becoming more rigorous. This is mainly evident in the need for the thermal expansion coefficient to be close to gallium arsenide (5.9x10- 6/K), maximizing thermal conductivity, experimenting with diamond composite materials, and enforcing strict control over key surfaces, finishes, edges (R10 microns), and coatings (nickel, gold, platinum, and locally prefabricated gold and tin). A decade ago, we were the sole manufacturer of tungsten copper bars in China, but now many manufacturers are entering this field.

Minimum Order: 10 long tons

Diamond Copper/Aluminum Series Diamond copper is a composite material made of diamond powder and a copper alloy. It utilizes high-quality artificial synthetic diamond powder, which boasts a thermal conductivity of about 1000W/M.K and an extremely low thermal expansion coefficient. Through the appropriate process, the diamond particles and the copper alloy create a metallurgical bonding interface, resulting in the diamond copper composite material possessing outstanding thermal conductivity and a suitable thermal expansion coefficient. Diamond aluminum, similar to diamond copper, has a lower density, but its thermal conductivity is slightly inferior to that of diamond copper. Diamond copper and diamond aluminum are currently the best heat dissipation materials in our company. Single crystal diamond and CVD diamond exhibit high thermal conductivity, but their thermal expansion coefficient is too small. On the other hand, carbon fiber composite materials offer directional thermal expansion and thermal conductivity.

Minimum Order: 10 long tons

CMC, S-CMC, HS-CMC series CMC is a sandwich composite sheet with a core material of molybdenum plate and oxygen-free copper plates on both sides. It was invented by Americans in the 1990s to solve the heat dissipation of F22 fighter power devices. This material combines the characteristics of molybdenum's low thermal expansion coefficient and copper's high thermal conductivity. The surface is covered with oxygen-free copper plates, eliminating the need to worry about airtightness. Additionally, the copper-coated surface facilitates electroplating. S-CMC is a multi-layer CMC with better symmetry. HS-CMC is a multi-layer composite sheet with holes in the core molybdenum plate. The central core hole is filled with oxygen-free copper, enhancing thermal conductivity in the Z direction. This unique variety was developed by our company in collaboration with Kyocera for 5G power devices. Our Ceramic Matrix Composite (CMC) can be stamped into sheet parts and even made into multi-boss heat pipe products. The layer thickness ratio of CMC series materials can be adjusted arbitrarily to obtain different thermal expansion coefficients.

Minimum Order: 10 long tons

Diamond Copper/Aluminum Series Copper/Kovar/Copper, Copper/Invar/Copper, and Copper/Steel/Copper series products are similar to CMC and CPC series sandwich composite materials. They combine the high thermal conductivity of copper with the low thermal expansion coefficient of Kovar, Invar, and steel. Although the thermal conductivity of Kovar, Invar, and steel is much lower than that of molybdenum and molybdenum-copper alloy, their prices are lower, and the yield rate of composite materials is higher. Therefore, the cost is much lower than that of CMC and CPC. According to literature reports,copper/Kovar/Copper,copper/Invar/Copper,an , d copper/Steel/Copper products are widely used internationally. We have developed these products for domestic research institutes and supplied them in small batches, but they have not been widely promoted.

Minimum Order: 10 long tons

CMC, S-CMC, HS-CMC series CMC is a sandwich composite sheet with a core material of molybdenum plate and oxygen-free copper plates on both sides. It was invented by Americans in the 1990s to solve the heat dissipation of F22 fighter power devices. This material combines the characteristics of molybdenum's low thermal expansion coefficient and copper's high thermal conductivity. The surface is covered with oxygen-free copper plates, eliminating the need to worry about airtightness. Additionally, the copper-coated surface facilitates electroplating. S-CMC is a multi-layer CMC with better symmetry. HS-CMC is a multi-layer composite sheet with holes in the core molybdenum plate. The central core hole is filled with oxygen-free copper, enhancing thermal conductivity in the Z direction. This unique variety was developed by our company in collaboration with Kyocera for 5G power devices. Our Ceramic Matrix Composite (CMC) can be stamped into sheet parts and even made into multi-boss heat pipe products. The layer thickness ratio of CMC series materials can be adjusted arbitrarily to obtain different thermal expansion coefficients.

Minimum Order: 10 long tons

CMC, S-CMC, HS-CMC series CMC is a sandwich composite sheet with a core material of molybdenum plate and oxygen-free copper plates on both sides. It was invented by Americans in the 1990s to solve the heat dissipation of F22 fighter power devices. This material combines the characteristics of molybdenum's low thermal expansion coefficient and copper's high thermal conductivity. The surface is covered with oxygen-free copper plates, eliminating the need to worry about airtightness. Aditionally, the copper-coated surface facilitates electroplating. S-CMC is a multi-layer CMC with better symmetry. HS- CMC is a multilayer composite sheet with holes in the core molybdenum plate. The central core hole is flled with oxygen-free copper, enhancing thermal conductivity in the Z direction. This unique variety was developed by our company in collaboration with Kyocera for 5G power devices. Our Ceramic Matrix Composite (CMC) can be stamped into sheet parts and even made into multi-boss heat pipe products. The layer thickness ratio of CMC series materials can be adjusted arbitrarily to obtain different thermal expansion coefficients.

Minimum Order: 10 long tons