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  • Why does the gas pump keep stopping when my tank isn’t ...

    Question: “Why does the gas pump keep stopping when my tank is not full?” I have owned and worked on and built high performance engines since the 1960’s. Although it is possible that your car’s filler tube is damaged and restricted, that would hav...

  • Oxy-Fuel Torch Tip/Nozzle Design and Selection

    When designing or selecting an oxy-fuel machine torch cutting nozzle/tip one must consider several factors. The following are several, but not all, items to be considered 1) thickness of the steel to be cut, 2) type cutting bore (cylindrical bore or high speed/divergent bore), 3) preheat gas to be used, 4) type cutting to be conducted (shape cutting, bevel cutting, etc.), and 5) characteristics of material to be cut …

  • Basics of Laser Cutting (Knowledge You Must Know) | …

    Fig.1 The laser beam melts the workpiece while the cutting gas blows away the molten material and slag in the incision. Melt Cutting. Fusion cutting is another standard process used in metal cutting, and it can also be used to cut other fusible materials, such as ceramics.. Using nitrogen or argon gas as cutting gas and the air with 2-20 bar pressure blown through the incision.

  • Safety in gas welding, cutting and similar processes

    Safety in gas welding, cutting and similar processes Page 8 of 11 If you flame cut outdoors and the metal is clean and unpainted you will not normally need RPE. Try to work in a position where the wind blows the fume cloud away from you and other people. If you flame cut indoors or in conditions were there is little air movement, the

  • Effect of cutting head nozzle on laser cutting quality and ...

    The cutting head nozzle is installed at the front end of the Oree cutting head to help control the auxiliary gas while protecting the focusing lens. The cutting material is kept at a stable distance from the nozzle during the cutting process to prevent splash bounce when cutting.

  • cutting exam Flashcards | Quizlet

    While cutting thin metal with a tip that is too large, a welder should hold the cutting torch at an angle of _____ to the base metal 15-20 degrees The edges of an oxyfuel gas cut are generally very rough

  • Articles. Laser Cutting Process Secrets Revealed

    The distance between the cutting nozzle and the surface to be cut is controlled by some type of THC (Torch Height Control), usually a capacitive one, so that no contact is made between them. Cut quality is decisively dependent on the nozzle distance: the smaller this distance, the better cut quality we achieve.

  • Oxy-Acetylene Cutting Processes | Metallurgy

    The depth of the groove cut depends upon the nozzle size, speed of progress and the angle between the nozzle and the groove-plate (Fig. 7.5). (4) Oxy-Arc Cutting: In this process, oxygen gas and electrodes are used to cut roughly mild steel, low-alloy steel, stainless steel, copper, bronze, brass, monel, metal etc.

  • Guidelines for Gas Welding and Cutting - BOC

    12.0 Gas Cutting 40 13.0 Oxy-fuel Cutting Procedures 42 13.1 Cutting Attachment Operation 42 13.2 Setting Up 43 13.3 Lighting Up 44 13.4 Closing Down 45 14.0 Oxy-acetylene Cutting Techniques 46 14.1 How it Works 46 15.0 Using the Cutting Assembly 48 16.0 Mild Steel Cutting 49 16.1 Thin Steel 49 16.2 Thick Steel 49

  • Oxyfuel Cutting - Process and Fuel Gases - TWI

    The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0.5mm to 250mm, the equipment is low cost and can be used manually or mechanised. There are several fuel gas and nozzle design options that can significantly enhance performance in terms of cut quality and cutting speed.

  • Dos & Don’ts At the Gas Pump - Maryland

    Mar 16, 1998 · Dos and Don’ts at the Gas Pump, Handout Page 6 New Signage The following warnings are on nozzle scuff guards (the plastic cover on the top of the nozzle) made after April 1, 2003: WARNING n Improper use may cause a hazardous condition n No smoking/extinguish all flames n Avoid static hazard — remain at nozzle n Do not top off n Licensed ...

  • Nozzles Cutting Nozzles - Rapid Welding

    9 rows · Cutting Nozzles Cutting Nozzles ANM Cutting Nozzles Ordering Information Nozzle type ...

  • The Reason Why the Gas Pump Nozzle Is Always Shutting Off ...

    May 05, 2020 · A hole is connected to a pipe inset inside the fuel nozzle. The pipe takes in air. If it stops being able to “breathe,” the resulting vacuum shuts off the flow of fuel to prevent gas from ...

  • SC-07 Safety code for Gas cutting & Gas Welding

    The following points shall be strictly adhered to, while carrying out gas cutting or heating/ welding job: 3.4.1 Preparation i. Gas cutting set shall be properly cleaned / checked and kept in a special trolley for transportation. ii. Nozzle shall be used as per job specification. iii. Nozzle shall …

  • Laser Cutting Science of burr-free laser cutting - Industr

    Mar 01, 2017 · Nitrogen assist gas can reach up to 35 to 50 per cent of the variable costs, so it is important to control the consumption of the gas while laser cutting. Hence, the first cutting parameter that should be considered is to minimise the nozzle diameter.

  • Oxy-fuel welding and cutting - Wikipedia

    Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the United States) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline) and oxygen to weld or cut metals. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903.Pure oxygen, instead of air, is used to increase the ...


    8. Do not arbitrarily change fuel gas type without consulting present supplier to be sure correct torch and nozzles are being used. See “Torch and Cutting Nozzles” section beginning on Page 15. 9. Be skeptical of claims made by proprietary fuel gas suppliers for hotter flame temperature, faster cutting speed or better cut quality.

  • Why You Need to Touch Your Car Before Pumping Gas | Reader ...

    Sep 11, 2019 · PEI has gotten reports of about 200 incidents at the gas pump caused by static electricity since the mid-1990s. But Boorse says there are probably a lot more cases that aren’t reported. While ...

  • Back to basics: The subtle science of burr-free laser cutting

    Jan 25, 2017 · The remaining parameters include the gas pressure, nozzle standoff, commanded laser power-frequency duty, and cutting speeds for various cut contours. Many parameter adjustments are automated on modern systems, including changing the nozzle to a smaller or larger diameter.


    • With rear mounted valves and cutting lever and round handle. • Cutter employs the nozzle mix principle, in which the combustible gas mixing is confined to the cutting nozzle. This results in a cutter which is highly resistant to backfire and flashback. • A wide …

  • Turning up the power

    Jul 12, 2001 · As in inert-gas cutting, the assist gas (oxygen) flows through the nozzle orifice and down into the kerf. While a solid flow of assist gas is required to eject the molten material from the kerf, assist gas pressures that are too high tend to cause uncontrollable burning.

  • Buy Gas Cutting Nozzle India | Gas Cutting Nozzle Types

    There is a variety of gas cutting nozzle types in the market. Each is chosen depending on the size, torch type, material, bore diameter, thickness to be cut, and the pressure of oxygen. These nozzles have extensive use in the fabrication industry, each delivering a certain specific cut.

  • Oxygen Cutting of Metals: 5 Processes | Metallurgy

    Oxy-Fuel Gas Cutting: ... Medium carbon steel should be heated to 175-350°C while HSLA (high strength and low alloy) steels require preheat temperature of 315 to 480°C. ... however for cutting material thicker than 25 mm a nozzle one size larger should be used. Flow rates are generally kept at 010 to 0-25 kg of iron powder per minute of cutting.

  • Oxy-fuel cutting; the basics explained | HGG 3D Profiling

    Oxy-fuel cutting: the basics. Before cutting, the cutting torch has to pre-heat the steel to ignition temperature at the starting point. At this temperature of around 960°C (depending on type of alloy), the steel has lost protective properties against oxygen and is still solid. Pure oxygen is then directed through the nozzle at the heated area.

  • How to avoid the top 10 problems in plasma cutting ...

    Feb 19, 2001 · Furthermore, parts must be run at the correct amperage. The amperage should be set to 95 percent of the nozzle's rating. If the amperage is too low, it leads to a sloppy cut. Overpowering will drastically reduce the nozzle's life. 4. Ensure Proper Gas and Coolant Flow. The flow and pressure of gas and coolant should be checked every day.

  • 10 common plasma arc cutting mistakes | Hypertherm

    May 01, 2018 · The same holds true for shields, which should only be replaced if they show signs of physical damage. Often shields can be cleaned of metal spatter and reused. Using the wrong parameters and parts for the job Consumable selection depends on the material and thickness being cut, the amperage and plasma gas used and other arc cutting parameters.

  • cutting knowhow v7 - SheetMetal.Me

    Nitrogen 7 to 8 kgf should be applied for stainless cutting. Air 7 to 8 kgf should be applied for stainless and aluminum cutting . Nozzle Gap Nozzle Gap is the distance between the tip of the nozzle and the material surface. The smaller nozzle gap uses assist gas more efficiently. Oxygen cut Clean cut

  • MIG EXAM Flashcards | Quizlet

    The best alternative for safely cutting into a previously used vessel is to first fill it with what? push, neutral, drag. What are 3 different travel angles called? ... gas nozzle and the end of the electrode. The term stickout refers to the distance between what? generates …

  • What Are The Types Of Gas Cutting Nozzle?

    Jun 27, 2019 · The prime functions should be correctly done by this nozzle - like cutting Oxygen exiting, flame cutting, gas stream blocking, etc. Coming to the various types of gas cutting nozzles available commonly in the market includes: • B-Type Nozzle: This type of nozzle is commonly used in the two-seat blow pipe cutting torches. The two nozzle gas cutter is usually used for LPG based requirements.