while gas cutting the nozzle should be removed

TECHNICAL GUIDE CUTTING

TECHNICAL GUIDE - CUTTING | 05 Correct nozzle size, gas pressure and travel speed will also minimise distortion during cutting. Softening on edges can also occur when flame cutting small strips, eg. 50mm wide x 50mm thick plate. Quench cutting of BISALLOY® steel grades to minimise distortion is not recommended, while cooling in still air is

water Shield Nozzle Swirl ring Electrode tube 30 A

• The torch must not touch the workpiece during cutting. Contact can damage the shield and nozzle, and affect the cut surface. Plasma set-up tips Follow carefully each step in the Daily start-up procedure described earlier in this section. Purge the gas lines before cutting. Maximize the life of consumable parts

What is the difference between a cutting nozzle and a ... - Quora

A welding nozzle has a single hole in it where the oxy-acetylene mix exits and burns. That flame is adjusted with the 2 appropriate knobs on the handle. A cutting torch has the same single hole in the middle of the tip but it has a ring of small h...

Guidelines for Gas Welding and Cutting - BOC

18.2 Straight Line and Bevel Cutting 53 18.3 Piercing and Cutting Holes 53 19.0 Nozzle Data Section 54 19.1 BOC Welding Tips 54 19.2 BOC 2 Seat Oxy-Acetylene Cutting Nozzles 54 19.3 BOC 2 Seat Oxy-LPG Cutting Nozzles 54 19.4 BOC 3 Seat Oxy-Acetylene Cutting Nozzles 55 19.5 BOC 3 Seat Oxy-LPG Cutting Nozzles 55 20.1 Equipment Care 56

FACTORS AFFECTING QUALITY IN OXY-FUEL CUTTING

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. Cutting speed on a thin plate (less than or equal to 1/2”) is controlled

Gas gives the big assist in laser cutting

Jul 13, 2015 · Thanks to its exothermic reaction, oxygen cutting allows the laser to cut thick material efficiently with relatively low laser power and low gas flow, yet the oxide edge needs to be removed if the parts are headed for welding and (especially) painting.

Why does gas not flow in laser nozzle?

The problem could have to do with assist gas pressure, which an operator can change easily at the controller; or flow rate, which depends on the nozzle orifice diameter. Or it could be that the focal point needs adjustment. Or the beam may not be centered in the nozzle. Or it could be a combination of everything.

Buy Gas Cutting Nozzle India | Gas Cutting Nozzle Types

1. A – Type Nozzle. This type of nozzle is meant for use in a two-seat blow pipe cutting flame. It is supplied as a two piece. It is mostly used with liquefied petroleum gas as the preheating gas. A-type is made with different bore diameter to produce a cutting of desired thickness or width. Below is a table showing the different bore ...

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.

Cleaning oil burner nozzles? — Heating Help: The Wall

May 21, 2009 · Can or should oil burner nozzles be cleaned? I was checking out my oil furnance last night and I noticed an used oil nozzle left on the unit. It occurred to me that since I have access to an ultrasonic cleaner at work, I could try cleaning the nozzle in some 409 or equivalent.

9 Factors Affecting Laser Cutting Quality | MachineMfg

During the cutting process, when the nozzle collides or rubs against the workpiece, the nozzle is easily deformed. When the perforation occurs in the hole or the cutting workpiece can not be cut through, the nozzle is prone to melting and the nozzle mouth is blocked, which will affect the cutting quality.

Filling Gas Tank | Chevy Tahoe Forum | GMC Yukon Forum ...

As such, I reverted to inserting the nozzle into the tank probably half way and before the the little wires started. When I topped off the tank just a tad after the pump cut off automatically (probably a bad habit I need to get out of), a bit of the gas came out of the tank and ran down the side of the truck.

fiber laser cutting machine, laser cutting machine, metal ...

The following is a specific relationship between nozzle and cutting quality. 1. When the center of the nozzle is different from the laser center, the effect on the cutting quality: Affect the cutting part. When the assist gas is injected, the gas volume distribution is uneven, so the cut portion is more likely to have a molten side while the ...

How much nitrogen assist gas is needed for laser cutting?

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.

I can't get the gas tank to fill. The nozzle keeps shutting ...

Aug 06, 2016 · I can't get the gas tank to fill. The nozzle keeps shutting off and I'm out even at half a tank. I know I saw on line before how to fix this, but I can't seem to find those posts anymore.

What should I know about gas cutting nozzles?

There are certain factors to check while buying a gas cutting nozzle. 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:

Laser Cutting Science of burr-free laser cutting

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.

What Are The Types Of Gas Cutting Nozzle?

Jun 27, 2019 · To enable proper gas cutting technology, the use and designing of oxy-fuel machine torch or gas cutting nozzles have come into use. There are certain factors to check while buying a gas cutting nozzle. The prime functions should be correctly done by this nozzle - like cutting Oxygen exiting, flame cutting, gas stream blocking, etc.

How to Recognize Damaged Plasma Torch Consumables

Under normal cutting conditions, expect to use two nozzles for each electrode to maintain the highest cut quality. The nozzle should be replaced when the orifice begins to wear out of round on either the outer or the inner bore.

Turning up the power

Jul 12, 2001 · The oxide layer must be removed from parts that are cut using oxygen assist gas to ensure weld integrity. Secondary grinding can be time-consuming, especially on thicker stainless steel from which a significant amount of the oxide-contaminated edge must be removed.

Articles. Laser Cutting Process Secrets Revealed

The gas jet flowing through the cutting nozzle removes the molten mass away from the kerf. The machine, CNC driven, moves the cutting head over the metal sheet following the pre-programmed pattern (G-Code), cutting the work-piece from the sheet.

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.

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

The cutting material is kept at a stable distance from the nozzle during the cutting process to prevent splash bounce when cutting. The diameter of the nozzle determines the airflow shape, the gas diffusion area and gas velocity entering the incision, thus affecting the removal of the melt and the cutting stability.

How Do I Properly Remove a Seized Gas Nozzle?

The machine can be used to back out the gas cup. Whenever a gas nozzle is removed to be cleaned or replaced, the threads of the chrome water-cooled nozzle should be inspected and cleaned as well, and chased with a nozzle thread chaser tap if necessary. Forcing the gas nozzle back onto the water-cooled nozzle will cause the threads to gall.

Tips on Improving Plasma Torch Consumable Life

The plasma gas pressure setting must remain as close to the prescribed cutting charts as possible. If the pressure is increased by more than 5 psi, the electrode will wear significantly faster. If the pressure is more than 5 psi lower, the nozzle orifice will rapidly become out of round and reduce cut quality.

Oxygen Cutting of Metals: 5 Processes | Metallurgy

The velocity of cutting oxygen jet is also a critical factor in achieving a desired quality cut as lower velocity may not be adequate to remove the slag, molten metal, and the gaseous products like CO, CO 2, SO 2 formed by the reaction of oxygen with carbon and sulphur in steel, while higher jet velocity may cause roughness on the cut edges ...

Laser Cutting Quality Control (With Proved Solutions ...

The gas consumption depends on the nozzle diameter and air pressure. When the cutting pressure is below 0.5MPa, it is low pressure, and above 2MPa is high pressure. Usually, the auxiliary gas and the laser beam are ejected coaxial, which can protect the focusing lens from being polluted while blowing away the bottom slag at the cutting zone.

SC-07 Safety code for Gas cutting & Gas Welding

of un-burnt gases while performing gas cutting or heating by gas and gas welding jobs. 2. SCOPE 2.1 This Safety Code provides safety guidelines in carrying out gas cutting or heating by gas and gas welding work at site while taking up fabrication, maintenance and manufacturing jobs in iron & steel industry.

Nozzles Cutting Nozzles - Rapid Welding

Cutting Nozzles Cutting Nozzles ANM Cutting Nozzles Ordering Information Nozzle type ANM / ANME using 6.3mm x 10m fitted hose with resettable flashback arrestors in new condition. Pressure & consumption rates are based using the nozzle size listed next to it cutting the thickest material in the metal thickness column.

Abrasive Jet - an overview | ScienceDirect Topics

A catcher is used for a stationary AWJ nozzle and movable workpiece setup while a settling tank is used when the workpiece is held stationary and AWJ nozzle is moved. Visual examination of the AWJM process has revealed that material is removed by a cyclic penetration process where work material is removed by erosion through cutting wear at top ...

How big of a nozzle do I need for a welding nozzle?

Nozzle type PNM / PNME using 6.3mm x 10m fitted hose with resettable flashback arrestors in new condition. Pressure & consumption rates are based using the nozzle size listed next to it cutting the thickest material in the metal thickness column. PNM-E Cutting Nozzles Ordering Information

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