10W Mini Glue Gun Ptc Heating 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
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.
General Safety Information:
1. Check
if the plug cord was in good condition, and if there is stand before plug into
the electrical outlet ; Check if the used glue gun has glue flow through back
of the tunnel;
2. wait
5-10 minutes to allow glue to soften, stand up the glue gun on the table when
not in use;
3. Touch
nozzle to any clean, dry surface you wish to bond, to avoid any impurity stop
the nozzle;
4. If the glue could not flow from the nozzle when
the glue gun start to work, check if the glue gun are heating;
If glue
gun can not be heated, there are following reasons:
If glue
gun can be heated, there are following reasons: Nozzle has been stopped by any
impurity, ask careerman to manage it.
5. Do not use the glue gun
under moist climate, humidity will affect insulation and cause electric shock;
6. Do not touch the nozzle
or melted glue;
7. Do not remove out the melted glue stick from
the tunnel back side, it will damaged the glue gun as well as scalding person
hands.
8. Do not to disassemble or assemble any glue
gun accessories freely, it will cause glue gun do not work properly;
9. Keep out of reach of children and stocked it
beyond any of Children palpable side;
10. Only used for melting glue stick, no other
usage;
11. When in use, there are any glue flow back
from tunnel, stop using immediately, wait for careerman clean the glue;
12. Close the power if the glue gun not in use
after 15 minutes;
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
4. After power,
wait for 5-10 minutes to allow glue to soften
Mini Glue Gun 10W Mini Glue Gun, Mini Glue Gun, Small Glue Gun, Electric Glue Gun Ningbo Kingvos Electrical Appliance Co.,Ltd , http://www.kingvos.com
Heating is one of the important processes of heat treatment. There are many heating methods for metal heat treatment. The first use of charcoal and coal as a heat source, and the application of liquid and gaseous fuels. Electrical applications make heating easy to control and environmentally friendly. These heat sources can be used for direct heating, or by indirect heating of molten salts or metals, or floating particles.
When the metal is heated, the workpiece is exposed to the air, and oxidation and decarburization (ie, the carbon content on the surface of the steel part) often occur, which has a detrimental effect on the surface properties of the parts after the heat treatment. Thus the metal should normally be heated in a controlled atmosphere or protective atmosphere, in molten salt and in a vacuum, or protected by coating or packaging methods.
Heating temperature is one of the important process parameters of heat treatment process. Selecting and controlling heating temperature is the main problem to ensure the quality of heat treatment. The heating temperature varies depending on the metal material to be treated and the purpose of the heat treatment, but is generally heated above the phase transition temperature to obtain a high temperature structure. In addition, the transformation takes a certain time, so when the surface of the metal workpiece reaches the required heating temperature, it must be kept at this temperature for a certain period of time, so that the internal and external temperatures are uniform, and the microstructure is completely transformed. This period of time is called the holding time. When high-energy density heating and surface heat treatment are used, the heating rate is extremely fast, and generally there is no holding time, and the heat treatment time of the chemical heat treatment tends to be long.
Cooling is also an indispensable step in the heat treatment process. The cooling method varies from process to process, mainly to control the cooling rate. Generally, the annealing rate is the slowest, the normalizing cooling rate is faster, and the quenching cooling rate is faster. However, there are different requirements depending on the type of steel. For example, an empty hard steel can be hardened by a normalizing cooling rate.
Metal heat treatment processes can be roughly divided into three categories: overall heat treatment, surface heat treatment and chemical heat treatment. Depending on the heating medium, heating temperature and cooling method, each category can be divided into several different heat treatment processes. The same metal uses different heat treatment processes to obtain different microstructures and thus different properties. Steel is the most widely used metal in the industry, and the steel microstructure is also the most complex, so there are many kinds of steel heat treatment processes.
The overall heat treatment is a metal heat treatment process that heats the workpiece as a whole and then cools it at an appropriate speed to change its overall mechanical properties. The overall heat treatment of steel has four basic processes: annealing, normalizing, quenching and tempering.
Annealing is to heat the workpiece to the appropriate temperature, using different holding time according to the material and the workpiece size, and then slowly cooling, in order to make the internal structure of the metal reach or close to equilibrium, obtain good process performance and performance, or further quench Prepare for organization. Normalizing is to cool the workpiece to a suitable temperature and then cool it in the air. The effect of normalizing is similar to annealing, but the resulting structure is finer, which is often used to improve the cutting performance of materials, and sometimes used for some less demanding parts. As the final heat treatment.
Quenching is to rapidly cool the workpiece after heating and holding it in a quenching medium such as water, oil or other inorganic salts or organic aqueous solutions. After quenching, the steel becomes hard but becomes brittle at the same time. In order to reduce the brittleness of the steel, the quenched steel is subjected to long-term heat preservation at a suitable temperature higher than room temperature and lower than 650 ° C, and then cooled. This process is called tempering. Annealing, normalizing, quenching and tempering are the "four fires" in the overall heat treatment. Among them, the quenching and tempering are closely related, and often used together, they are indispensable.
The "four fires" evolved different heat treatment processes with different heating temperatures and cooling methods. In order to obtain a certain strength and toughness, the process of combining quenching and high-temperature tempering is called quenching and tempering. After quenching some alloys to form a supersaturated solid solution, it is kept at room temperature or a slightly higher temperature for a longer period of time to increase the hardness, strength or electrical magnetic properties of the alloy. Such a heat treatment process is called aging treatment.
An effective and tight combination of pressure processing deformation and heat treatment, the method of obtaining a good strength and toughness of the workpiece is called deformation heat treatment; the heat treatment in a vacuum atmosphere or vacuum is called vacuum heat treatment, which can not only make The workpiece is not oxidized, does not decarburize, keeps the surface of the workpiece smooth after treatment, improves the performance of the workpiece, and can also be subjected to chemical heat treatment by using an infiltrant.
Surface heat treatment is a metal heat treatment process that only heats the surface layer of the workpiece to change its surface mechanical properties. In order to heat only the surface layer of the workpiece without excessive heat being introduced into the interior of the workpiece, the heat source used must have a high energy density, that is, to give a large amount of heat energy to the workpiece per unit area, so that the surface layer or local portion of the workpiece can be short-time or instantaneous. Reach high temperatures. The main methods of surface heat treatment include flame quenching and induction heating heat treatment, commonly used heat sources such as aerobic acetylene or oxypropane, induction current, laser and electron beam.
Chemical heat treatment is a metal heat treatment process that changes the chemical composition, structure and properties of the surface of the workpiece. The difference between chemical heat treatment and surface heat treatment is that the latter changes the chemical composition of the surface layer of the workpiece. Chemical heat treatment is to heat the workpiece in a medium (gas, liquid, solid) containing carbon, nitrogen or other alloying elements for a long time, so that the surface of the workpiece penetrates into carbon, nitrogen, boron and chromium. After infiltration of the elements, other heat treatment processes such as quenching and tempering are sometimes performed. The main methods of chemical heat treatment are carburizing, nitriding and metalizing.
Heat treatment is one of the important processes in the manufacturing process of mechanical parts and tooling. In general, it can guarantee and improve various properties of the workpiece, such as wear resistance and corrosion resistance. It also improves the microstructure and stress state of the blank to facilitate various cold and hot processing.
For example, white cast iron can be obtained by long-term annealing treatment to obtain malleable cast iron, which improves plasticity. The gears adopt the correct heat treatment process, and the service life can be increased by several times or several times than that of the gears without heat treatment. In addition, the inexpensive carbon steel passes through. Some alloying elements have some high-performance alloy steel properties, which can replace some heat-resistant steels and stainless steels; almost all of the tooling tools need to be heat treated before they can be used.
1: Castability (castability): Refers to the ability of a metal material to obtain a qualified casting by casting. Castability mainly includes fluidity, shrinkage and segregation. Fluidity refers to the ability of liquid metal to fill the mold. Shrinkage refers to the degree of volume shrinkage when the casting solidifies. Segregation refers to the chemical composition and microstructure of the metal due to the difference in crystallization between the metals during cooling and solidification. .
2: Forgeability: refers to the ability of a metal material to change shape without cracking during press working. It includes the ability to perform hammering, rolling, drawing, extrusion and the like in a hot or cold state. The forgeability is mainly related to the chemical composition of the metal material.
3: Machinability (cuttability, machinability): Refers to the ease with which a metal material is cut into a qualified workpiece. The machinability is usually measured by the surface roughness of the workpiece after machining, the allowable cutting speed and the degree of wear of the tool. It is related to many factors such as chemical composition, mechanical properties, thermal conductivity and degree of work hardening of metal materials. It is usually a rough judgment of the hardness and toughness of the machinability. Generally speaking, the higher the hardness of the metal material, the harder it is to cut, and the hardness is not high, but the toughness is large and the cutting is difficult.
4: Weldability (weldability): Refers to the adaptability of metal materials to welding. Mainly refers to the difficulty of obtaining high-quality welded joints under certain welding process conditions. It includes two aspects: First, the combined performance, that is, the sensitivity of a certain metal to form a welding defect under certain welding process conditions, and the second is the use performance, that is, certain metal welding under certain welding process conditions. The suitability of the joint to the requirements of use.
5: heat treatment
(1): Annealing: A heat treatment process in which a metal material is heated to an appropriate temperature for a certain period of time and then slowly cooled. Common annealing processes are: recrystallization annealing, stress relief annealing, spheroidizing annealing, complete annealing, and the like. The purpose of annealing: mainly to reduce the hardness of metal materials, improve plasticity, to facilitate cutting or pressure processing, reduce residual stress, improve the homogenization of tissue and composition, or prepare the tissue for the subsequent heat treatment.
(2): Normalizing: refers to a heat treatment process in which steel or steel is heated to 30 to 50 ° C above Ac3 or Acm (the upper critical point temperature of steel) and kept in a static air for a suitable period of time. The purpose of normalizing is to improve the mechanical properties of low carbon steel, improve the machinability, refine the grains, eliminate the defects of the structure, and prepare the tissue for the subsequent heat treatment.
(3): quenching: refers to heating the steel to a temperature above Ac3 or Ac1 (the lower critical temperature of the steel) for a certain period of time, and then obtaining martensite (or bainite) at an appropriate cooling rate. The heat treatment process of the tissue. Common quenching processes include salt bath quenching, martensite quenching, bainite austempering, surface quenching and partial quenching. The purpose of quenching: to obtain the desired martensite structure of the steel, improve the hardness, strength and wear resistance of the workpiece, and prepare the structure for the subsequent heat treatment.
(4): Tempering: refers to the heat treatment process in which the steel is hardened and then heated to a temperature below Ac1, kept for a certain period of time, and then cooled to room temperature. Common tempering processes are: low temperature tempering, medium temperature tempering, high temperature tempering and multiple tempering. The purpose of tempering: mainly to eliminate the stress generated by the steel during quenching, so that the steel has high hardness and wear resistance, and has the required plasticity and toughness.
(5): tempering: refers to the composite heat treatment process of quenching and tempering steel or steel. Steel used for quenching and tempering is called quenched and tempered steel. It generally refers to medium carbon structural steel and medium carbon alloy structural steel.
(6): Chemical heat treatment: refers to the heat treatment process in which a metal or alloy workpiece is placed in an active medium at a certain temperature to infiltrate one or more elements into its surface layer to change its chemical composition, structure and properties. Common chemical heat treatment processes include carburizing, nitriding, carbonitriding, aluminizing, and boronizing. The purpose of chemical heat treatment: mainly to improve the hardness, wear resistance, corrosion resistance, fatigue strength and oxidation resistance of steel parts.
(7): Solution treatment: refers to the heat treatment process in which the alloy is heated to a high temperature single-phase zone to maintain the temperature, and the excess phase is sufficiently dissolved in the solid solution and then rapidly cooled to obtain a supersaturated solid solution. The purpose of solution treatment is to improve the plasticity and toughness of steel and alloy, and prepare for precipitation hardening treatment.
(8): Precipitation hardening (precipitation strengthening): refers to a heat treatment process in which a metal is dispersed in a solute atom in a supersaturated solid solution and/or a solution is obtained by dissolving the particles dispersed in the matrix to cause hardening. For example, austenitic precipitated stainless steel can be subjected to precipitation hardening treatment at 400 to 500 ° C or 700 to 800 ° C after solution treatment or after cold working, and high strength can be obtained.
(9): Aging treatment: refers to the heat treatment process in which the alloy workpiece is subjected to solution treatment, cold plastic deformation or casting, and after forging, at a higher temperature or at room temperature, and its performance, shape and size change with time. If the aging treatment process is used to heat the workpiece to a higher temperature and aging for a long time, it is called artificial aging treatment. If the workpiece is placed at room temperature or under natural conditions for a long time, the aging phenomenon occurs as natural. Aging treatment. The purpose of aging treatment is to eliminate the internal stress of the workpiece, stabilize the structure and size, and improve the mechanical properties.
(10): Hardenability: refers to the characteristics of determining the hardening depth and hardness distribution of steel under specified conditions. The hardenability of the steel is good and poor, and it is usually expressed by the depth of the hardened layer. The greater the depth of the hardened layer, the better the hardenability of the steel. The hardenability of steel depends mainly on its chemical composition, especially the alloying elements and grain size with increased hardenability, heating temperature and holding time. The steel with good hardenability can obtain uniform and uniform mechanical properties of the whole section of the steel and quenching agent with small quenching stress of steel parts to reduce deformation and cracking.
(11): Critical diameter (critical harden diameter): The critical diameter refers to the maximum diameter of the steel when it is quenched in a certain medium, and the core is all martensite or 50% martensite. The diameter can generally be obtained by a hardenability test in oil or water.
(12): Secondary hardening: Some iron-carbon alloys (such as high-speed steel) must be tempered several times before further increasing their hardness. This hardening phenomenon, called secondary hardening, is due to the precipitation of special carbides and/or due to the transformation of austenite into martensite or bainite.
(13): temper brittleness: refers to the embrittlement phenomenon in which the quenched steel is tempered in certain temperature ranges or slowly cooled from the tempering temperature. The temper brittleness can be divided into the first type of temper brittleness and the second type of temper brittleness. The first type of temper brittleness, also known as irreversible temper brittleness, occurs mainly when the tempering temperature is 250-400 ° C. After the reheating brittleness disappears, the tempering in this interval is repeated, no brittleness occurs, and the second type of tempering Brittleness, also known as reversible temper brittleness, occurs at temperatures between 400 and 650 ° C. When reheating and brittleness disappears, it should be cooled rapidly. It should not stay in the interval of 400-650 ° C for a long time or slow cooling, otherwise the catalytic phenomenon will occur again. The occurrence of temper brittleness is related to the alloying elements contained in steel. For example, manganese, chromium, silicon, and nickel have a tendency to temper brittleness, while molybdenum and tungsten have a tendency to weaken temper brittleness.
1
Plug cord into electrical outlet not
properly;
2
Glue gun has been destroyed owing to
inner cord short circuit;
tunnel at back of gun
The heat treatment process generally includes three processes of heating, heat preservation and cooling, and sometimes only two processes of heating and cooling. These processes are connected to each other and cannot be interrupted.