An oxygen acetylene flame is about 6000 degrees F. Considering molten steel to about 2800F, which is pretty freakin hot!
You how much a package of oxygen acetylene torch. You can solder sets of air-conditioning in line, copper water pipe weld silver soldering stainless steel tube welded 4130 chromoly, and even the heat and bend metal 1 inch thick. But oxy-fuel torches can be extremely dangerous if not used correctly. OSHA requires employers to even ensure that workers who use equipment to oxyfuel properly trained and qualified for oxy-fuel welding, cutting, heating, and brazing. (See 29 CFR 1910.252)
In my 30 years and over in the welding field, I am always surprised by the lack of training on the safe operation of gas cutting equipment .. Even experienced welders are often deficient in the use of oxygen acetylene torches, except that they have received practical training where the demonstration skill was required
Safe operation of oxyacetylene equipment requires training, the willingness to follow basic safety guidelines, and understand some basic principles:
o Oxygen cylinders are pressurized to over 2500 psi and can become a projectile if the reverse. Always, always, always keep the cap screwed on when the bottle is not guaranteed.
Bottles o are filled with acetylene gas acetylene gas compressed into a porous material saturated with liquid acetone. They should remain in position vertically to avoid damaging the liquid acetone regulators and restrict the flow of gas. If you have to fix them mail, let them stand for a while before using it.
cylinder o Never carry or store in an enclosed space (i, e, chest car, truck or toolbox) the welding supply stores often have pictures of cars destroyed by the explosion of oxygen cylinders and acetylene carried in the trunk of a car. They even make you sign a waiver if you want to transport the bottles yourself.
o Do not use damaged equipment.
o Always open oxygen cylinders very slowly. Opening them is very fast dangerous and may cause the regulator to explode. Yes I said explode. (If you do not believe me, Google burnout "regulator")
No valves flapper valve or combination use flashback / prevent reverse gas flow and prevent mixing of gases.
o Never use oil on some equipment. Oil in the presence of pure oxygen can ignite easily
o Always bleed the gas and rear screws controller when you're finished with the torch
There are several manufacturers of equipment oxycutting: Victor Smith, and Harris are three major brands and designs their equipment each with different characteristics in mind. Thus of flares of each manufacturer is different. Always follow the manufacturer's instructions.
The first thing to do when preparing to operate an oxyfuel torch is to inspect the equipment. Make sure the bottles are secured to prevent them from falling .. Then inspect hoses to make sure they are not cracked or rotting. Do you feel that the brass connectors to ensure they are all well and ensure the valves are closed cylinders with regulators zero reading.
If the regulators are not reading Zero, one of two things wrong: the gauge or gauges were damaged or the previous user failed to bleed the pressure line. To release pressure, open the appropriate valve on the torch and turn the screw until the needle moves zero. If the needle does not go to zero, the gauge is damaged and should not be used.
If the gauges are determined to work normally the next thing to do is make sure that the screws are supported legislation that you can not feel the spring pressure on them.
Here is a simple ABC, 123 list to use for setup and shutdown of equipment oxy-fuel.
o Wear personal namely the protective shade equipment of 3 to 5 items ANSI eyewear, gloves, etc.
o Inspect equipment for: State General pipes, gauges to zero, check valves, flashlight, chains on bottles
o If the gauges are not reading at zero lines let drain for zero gauge
o If the gauges are damaged replace
o oxygen cylinder valves open very slowly. (This is the most important step on this page)
Tip o Select proper guidelines according to manufacturers
o Use Council table manufacturers to determine pressure settings
o Choose gauges
o lines serving individual
o acetylene valve torch to open a quarter turn and torches
o Increase the acetylene flame high enough to where the soot disappears.
o add oxygen to the fire until blue cones define the creation of a neutral flame.
o Conduct work
o Turn off the flame, turning off gas valves at the torch (manufacturers differ on whether to disable or oxygen acetylene first time.)
O Close the bottles
o lines serving
o Once the gauges are given to zero, back screw regulatory
Back to the torch o storage place
o Secure oxy-fuel equipment for the user following
An extensive 7 module course on oxy fuel cutting torch safety is available free at the welding tips and tricks web site.
For information on Oxygen Acetylene cutting and welding, mig, tig, or stick welding… plus a load of other down and dirty welding information, visit http://www.weldingtipsandtricks.com
 | Dynam E-Razor 250 6 Channel Metalic 3D Brushless Ready to Fly RC Helicopter $349.95 This listing is for the Dynam E-Razor 250 Collective Pitch Helicopter. The Dynam E-RAZOR size 250 Brushless Powered belt 3D model electric helicopter is Ready to Fly & is a full 3D Aerobatic Collective Pitch Helicopter with belt driven tail. It includes head-locking GY192 Gyro, 2 cell 7.4V 850MAH 15C Li-Po Battery & Balancing Charger with AC power adapter and comes complete with a RACON X6 6 channel transmitter. This model is well constructed and it looks great! All components are pre-installed and set-up at factory. The DYNAM E-RAZOR 250 comes with 15A brushless ESC which is matched to a 4800 KV Brushless motor. Product Name: E-RAZOR 250 Item: DY8919 Specification: 1. Type: RTF Electric 3D Heli 2. Transmitter:6CH RTF/ARF RC Helicopter 3. Length: 420mm 4. Height: 161mm 5. Main Rotor Diameter: 438mm 6. Tail Rotor Dianeter: 105mm 7. Gyro: GY192 Head Lock Gyro 8. Battery: 7.4V 850MAH 15C li-polymer 9. Motor: Brushless 4800KV 10. Servo: 7g*4pcs Features: 1.Simplify, compact and high-rigidity frame. let all electric system install easy and nice looking. 2.Use Direct-belt-drive, save power and let helicopter very quiet. 3.Simple, separate servos-frame, let flyer easy install and repair. 4.In main frame, use 3pcs belling, insure to the main shaft concentric and less shake. 5.High-precision tail double-push frame, more smooth and wearable. 6.The separate main gear let flyer install and repair more easy and fast. Instruction Manual FMS Brushless motor 4800KV Servo Weight: 7g Torque:4.8V 1.6kg-cm Speed:4.8V 0.1sec/60° Size(mm): 21.8×11×19.8 |
 | EXI 500-Class Plastic Edition 3D RC Helicopter ARF Kit $399.95 Ultra lightweight frames and metal blade grips with thrust bearings are two examples of the quality features designed into this great helicopter! Plastic Version Kit Includes: EXI 500 Plastic Kit Main Rotor Blades NOT included. This is a kit version, assembly required. (the factory already completed the assembly for the rotor head, tail section, and main frame, you just need to put in the tail boom, main gear, and landing skid Features Electric Power System Simple lightweight design provides an awesome flight performance and extreme 3D capability Rigid Aluminum Frame design Beautiful Factory Painted Fiberglass Canopy Rotor head/tail with thrust bearings Direct to swash CCPM linkage Center of gravity battery tray designed close to the rotor head Tail rotor drive belt system Fully driven tail auto rotation system Tail servo mount boom Complete Rotor Head Complete Tail Assembly Tail-Boom Holder Specifications: Length: 850mm Height: 310mm Main Blade Length: 425mm Main Rotor Diameter: 970mm Tail Rotor Diameter: 200mm Motor Drive Gear: 12T/13T Main Drive Gear: 162T Autorotation Tail Drive Gear: 145T Tail Drive Gear: 31T Drive Gear Ratio: 1:13.5:4.68/1:12.46:4.68 Weight(w/o power system): 935g Flying Weight: Approx 1700g Radio transmitter and electronic equipment required for assembly: Transmitter(6-channel or more, helicopter system) Receiver(6-channel or more) Mini servo (3) Head lock gyro Specialized Tail Servo Pitch gauge 60A Brushless ESC 500 size Brushless motor (1600KV) 22.2V 6S Li-Poly 2100~2500mAh battery 425mm main blade Complete Rotor Head Aluminum Frame and Base plate Complete Tail Assembly |
 | 400DH Outrunner RC Brushless Motor for Electric RC Helicopter 3500 RPM $75 400DH BRUSHLESS MOTOR Maximum Current : 15 Amps KV (RPM per volt) 3500 Weight 46g Shaft Dia. 2.3mm Aurora 400DH : Designed to be glitch free for Helicopters. Provides Amazing performance for the ShoGun / Zoom / Dragonfly and other micro-helis. Works great with a 3 Cell Lipo Battery Over one year of proven service in the field. 400DH Outrunner Brushless Motor 3500 RPM 400DH BRUSHLESS MOTOR: Designed for Radio Remote Controlled Helicopters to be glitch free. Specifications: Current: 15 Amps continuous KV: 3500 rpm per Volt Weight: 46 g Sha ft Diameter: 2.3 mm It also provides Amazing performance for the ShoGun / Zoom / Dragonfly and other micro-helis. Works great with a 3 Cell Lipo Battery. Over one year of proven service in the field. The quality of material is excellent geovisit(); |
 | Walkera DragonFly #37 RC Helicopter Replacement Parts: HM-037-Z-46 brushless motor $56.25 Walkera DragonFly #37 RC Helicopter Replacement Parts: HM-037-Z-46 brushless motor |
You can read more posts here:
Great Planes RC ARF Helicopter Brushless
No comments:
Post a Comment