Effect of extruder speed, steam pressure temperature, spiral, die hole, hot and cold discharge, etc. on bulk density (moisture content, raw meal production, over-expansion)
1. If the modulation speed is too fast, the residence time in the modulator is too short, the modulation is not enough, and the bulk density is easy to cause the bulk density to exceed the standard; if the modulation speed is too slow, the residence time of the material in the modulator is too long, modulation Excessive puffing, puffed corn appears white, losing nutritional value.
2. If the steam pressure temperature is too high, the corn flour is over-expanded, the expanded corn appears white, and the nutritional value is lost; if the steam pressure temperature is too low, the corn flour is not puffed enough, resulting in high raw meal and moisture content (contact puffing) Machine principle analysis).
3. If the spiral pitch and the pore diameter of the die hole are too large, in the expansion, the pressure is insufficient to cause insufficient expansion, and the raw powder and moisture content are too high (in connection with the principle of the extruder); the spiral pitch and the pore diameter of the die are too small, and the puffing is performed. Excessive medium pressure leads to excessive expansion, and the expanded corn appears white, losing its nutritional value.
4. Puffed corn cold discharge (large fan air volume, long cooling time), the moisture content will be lower; puffed corn heat discharge (small fan air volume, short cooling time), it is easy to lead to excessive moisture content.
20W Glue Guns Features:
1. Versatile
2. Easy
3. Quick
4. Proective Nozzle Cover
5. Trigger Flow Control
6. Bonds instantly
7. High quality
8. High temperature or low temperature
9. New design
10. With switch function
Idea for many applications. Fastening various materials such as paper, cardboard, fabric,wood, lace,trims,leather,metal,glass, tiles, rubber, ceramics and flooring etc.Ideal for hobby and household repair,DIY&craft projects.
Designed and manufactured to the highest of standards to ensure a robust and long life, we hope it provides you with many years of trouble-free, safe and reliable service.
Important Caution:
1． Before use the glue gun, check if the plug cord into electrical outlet properly;
2． When glue gun in first use, the heating element will have small smoke, it is normal situation, but the smoke will disappeared after 10 minutes;
3． After power, not for a long time in standby mode(not longer for 20 minutes), when the suspension of use, unplug first.
4． Avoid to use the glue gun under very hot or very cold environments.
5． Better not work under direct cold wind blowing, it will reduce efficiency and loss power
6． When in continuous using, do not press the trigger with great pressure, and try to squeeze out the un-melted glue, it would damage the glue gun
7． Not applicable for bonding heavy objects or objects needed strong adhesive
8． The quality of glue stick will directly influence the glue gun function and sticking objects quality;
9． If the power cord is damaged, do not replace it by yourself, must ask for professionals to replace it.
10． This tools must b e placed in its position when not in use. And storage before the tools complete cooled.
11． Be careful when using any other electrical appliance with flammable material.
12． Not applicable for a long time in the same place.
13． Do not use an explosive gas atmospheres.
14． Note that heat may be the line of sigh, combustible materials.
15． Do not leave equipment unattended when switched on.
16． This appliance is not intended for use by persons(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
17. Children should be supervised to ensure that they do not play with the appliance.
Using methods
1. Glue gun using voltage is 110-220V AC,50/60Hz;
2. Tip gun forward on stand and place a piece of cardboard under the nozzle
3. Use 7-8mm (mini trigger glue gun), 11-12(big trigger glue gun), insert glue sticks through
tunnel at back of gun
4. After power, wait for 5-10 minutes to allow glue to soften
After glue softens, squeeze trigger to feed glue through glue barrel. Excessive force will damage glue gun. Put down nozzle after work, disconnect the power plug20W Glue Guns, 20W Mini Glue Gun, Regular Glue Gun
Ningbo Kingvos Electrical Appliance Co.,Ltd , http://www.kingvos.com