Views: 9 Author: China Xicheng Publish Time: 2021-07-24 Origin: China Xicheng
PP board welding method: use PP welding gun, adjust the temperature to 180 degrees, after 45 degrees chamfer the PP board, join together, first use the PP welding torch nozzle spot welding connection and fix, use the PP welding rod to weld and fix, use the oblique knife to hold the welding rod Shovel.
Introduction of PP board welding method
This article mainly explains the welding method of PP board. Xicheng Environmental Protection Equipment Co., Ltd. specializes in PP board processing business. It is used for the production of anti-corrosion equipment. Before PP board is processed into equipment, you need to open the material. After setting out according to the size, you need to make the PP board. Welding process, this article mainly explains the PP board welding method. Before welding the PP board, you need to understand what is the PP board, the characteristics of the PP board, the characteristics of the PP welding rod and the use of the PP welding gun.
What is PP board
PP board is also called polypropylene board, which is made by extrusion molding method with polypropylene resin as the main raw material. Acid and alkali resistance, non-toxic, good physical and mechanical properties. PP board processing equipment is mainly used for food packaging, chemical containers and waste gas treatment equipment, water treatment equipment, and aquaculture. It is widely used. The production of PP anticorrosive equipment requires mature plastic welders and good PP board welding methods.
PP sheet size: thickness 0.6-35mm, width within 1500mm, any length or rolls
What is PP welding rod
PP welding rods are inseparable from PP sheet processing. PP welding rods are also known as polypropylene plastic welding rods. A professional PP hot-melt welding gun must be used to heat up to 150-180 degrees Celsius to weld polypropylene plastics. PP welding rod is a kind of parallel linear slender plastic strip, commonly used in double-strand and single-strand. PP welding rods are used in various industries such as plastic welding, plastic chemical anticorrosion, plastic container welding, plastic pipe and plastic pipe fitting welding and electroplating equipment production. PP electrode product characteristics: acid, alkali, corrosion and non-toxic.
PP electrode specifications
Single strand 3*3*5mm/4*4*6mm
Double strand 3.0mm/2.5mm 3mm/4mm
PP welding rods generally have no color, and they are filled with color masterbatch. Generally, they will have natural color, beige gray. Generally, the raw materials of PP welding rods are imported materials. It is the best, and the welding rods that do not add any recycled materials and fillers are not embrittled. With good flexibility, this is the best welding effect between the welding rod and the PP sheet. The scope of application of PP welding rod is relatively wide, and it is also very suitable for PCB equipment, hardware equipment, electroplating equipment, environmental protection equipment, solar photovoltaic cleaning equipment, knife mold, backing board and other industries.
What is a PP welding gun
Another important equipment for PP sheet welding processing is the PP welding torch. The PP welding torch conventionally uses hand-held welding torches and extrusion welding torches. Different welding torches are used according to the welding requirements achieved. For example, ordinary pp duct welding uses hand-held torches. That is, for example, welding the bottom of the barrel and the pressure-resistant container needs to use an extrusion welding torch, no matter which welding torch is used, it must use a pp welding rod.
Hand-held welding guns have a variety of welding nozzles and welding nozzle types
Standard welding tip
Round quick pull welding nozzle
Triangle quick pull welding nozzle
Quick spot welding nozzle
U-shaped hot air nozzle
Explanation of PP board welding method
When welding the PP board, the hand holding the electrode must be strong. According to the different purpose, the angle between the electrode and the welding seam (that is, the direction of the electrode movement) generally has three angles: obtuse angle, right angle, acute angle, and right angle is the opponent. The strength requirement is higher, the welding speed is slower, but the weld seam is stronger, generally used for the front line; obtuse angle is the second, and the acute angle requires lower hand strength, faster welding speed, but lower welding strength, generally used for the periphery Reinforcement.
When welding the PP plate, the air pipe of the welding gun should sway evenly along the welding seam and the welding rod, so that the welding seam and the welding rod can be initially melted to improve the welding strength. More practice is needed to master the specific techniques. Whether the welding seam strength is firm can wait for the welding rod to cool down slightly and see whether it can be torn off as a standard.
PP welding rod is usually used for welding of two kinds of plates and pipes, both of which are not easy to weld. A mature plastic welder, the biggest feature is proficiency. The welding of pp plate requires chamfering and then welding. The welding of pp pipe is like pp pipe. Welding to the flange also need to pay attention to the speed and stability. Pay attention to the welding slurry in the future. The speed is faster, and there will be no welding slurry on both sides of the welding rod. The speed is slow. The welding rod will burn and the welding will not be due to the high temperature of the welding gun. Beautiful.