Znanje o korištenje lemljenje glača i lemljenje željezo rad standardi
A: understand the soldering željezo, lemljenje željezo željezo je the most commonly used tools in zavarivanje.
1. Role: is the conversion of electric energy into toplinska on the zavarivanje point part of the grijanje zavarivanje. Whether the zavarivanje a large part of the work is to see how the control of it. General speaking, the the greater the power of the soldering iron, the heat, the high the temperature of the soldering iron head.
2. The common power of soldering iron: 20W; 25W; 30W; 40W; 60W; 100W.
3. Lemljenje željezo grijanje oblik: endotermno; vanjsko toplina.
4. Commonly used soldering iron auxiliary supplies: soldering iron stand, tin sucker, tweezers, electrostatic hand ring, diagonal pliers, absorbent sponge.
Drugo: the use of soldering iron precaution
1. The preparatory work before using the soldering iron.
Lemljenje željezo to use prije te kosina, specifična metoda is: the lemljenje željezo vola gorjela vruće, to be just able to melt the lem, with the tin line even coated in the head the the soldering željezo, so the head of the soldering iron uniformly ate on a layer of kositar. (Napomena: the newly kupljeno lemljenje željezo in grijanje proces dim je a normalna reakcija)
2. Master the correct operating držanje.
Can ensure the the physical and mental health of the operator, reduce labor injury. In order to reduce the solder grijanje hlapljive kemijske tvari on the harm of people, reduce the inhalation of of harmful gases, in general, the soldering iron to nose distance should be not than 20cm, obično 30cm is appropriate.
3. Before using the soldering iron, you should check whether the voltage is consistent with the nominalno voltage of the soldering iron.
4. The lemljenje željezo treba biti uzemljeno i dobro uzemljeno.
5. Use the lemljenje željezo sa elektrostatski ruka prsten, i elektrostatski ruka prsten to be well uzemljenje. (Napomena: statično uzemljenje linija i željezo uzemljenje linija must be odvojeno)
6. After the soldering iron is energised, it can not be knocked, rastavljeno i instalirano it električno grijanje part dijelovi proizvoljno.
7. The soldering iron should be kept dry and should not be used in excessively humid or rainy environment.
8. When remove the head of the soldering iron, switch off the power supply.
9. After switching off the power supply, use the residual heat to put a layer of tin on the head of the soldering iron to protect the head of the the soldering ;
10. When there is a a black oxide layer on the soldering iron head, you can wipe off the oxide on the the absorbent spužva, and odmah on the tin. (Do not use a knife to scrape)
11. The sponge is used to collect the tin slag and tin bead oksids, and it is appropriate to pinch it with your hand just with with your hand just without water.
12. Lemljenje željezo treba ne be energised for a long time and not used, so that it is easy to make the soldering iron core to accelerate the oksidacija and burn off, shorten its life, also the head of the soldering iron due to longed heating and oksidacija, and even be " burned to death " 42 5 " eat tin ".
Tri: lemljenje
Solder is a kind of fusible metal, it can make the component leads and printed circuit board connection points connected together. Tin (Sn) is a soft, malleable silver-white metal, melting point of 232 degree , stable chemical properties at room temperature, not easy to oxidise, no loss of metallic luster, strong resistance to atmospheric corrosion. Lead (Pb) is a softer light greenish-white metal, melting point of 327 degree , high purity lead atmospheric corrosion resistance, chemical stability, but harmful to humans. Tin in a certain proportion of lead and a small number of other metals can be made into a low melting point, good mobility, strong adhesion to the components and wires, high mechanical strength, good electrical conductivity, not easy to oxidise, corrosion resistance, good, bright and beautiful solder joints solder, generally known as solder. Solder according to the amount of tin can be divided into 15 kinds, according to the amount of tin and impurities
The chemical sastav of the tin content and nečistoće are divided into S, A, B three grades. Hand soldering commonly used wire solder. (There also now commonly used environmentally friendly olovo lemljenje)
Flux can općenito be podijeljeno into in inorganic flux, organski flux and smola flux, can dissolve the removal of oksidi on the surface of the metal, i in the the zavarivanje grijanje paket
Surrounding the surface of the metal, so that it is izoliran from the air, to prevent oksidacija of the metal when grijana; can reduce the surface tension of the melted solder, which is conducive to the wetting of the solder. (Rosin is a natural smola flux)
