Surat Edaran Kementerian Agama no. Keputusan Presiden Republik Indonesia No. Para lintas sektor juga melakukan penandatanganan untuk […]. Mohammad Imron, M. Sekretaris Dinas Kesehatan Bondowoso, Kasie. Surveilans dan […]. Assalamualaikum, tretan dan dulur. Survei ini dilakukan untuk mengetahui tingkat kepuasan masyarakat terhadap pelayanan terkait informasi yang ada pada Website dan Sosial Media kami.
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Trending content 10 February Capital markets. What makes Bucharest such a great city for remote working? Conservation agriculture: How Romanian farmers can help protect the environment and gain from it. Brexit: What changes for Romanian citizens starting January Latest Press Releases. Keputusan Presiden Republik Indonesia No. Para lintas sektor juga melakukan penandatanganan untuk […]. Mohammad Imron, M. Sekretaris Dinas Kesehatan Bondowoso, Kasie. Surveilans dan […]. Assalamualaikum, tretan dan dulur.
Survei ini dilakukan untuk mengetahui tingkat kepuasan masyarakat terhadap pelayanan terkait informasi yang ada pada Website dan Sosial Media kami. Caranya dengan men-klik link yang tertera pada poster dan dan isi surveinya. Sampai pagi hari tanggal 10 Mei terdapat beberapa perubahan. Untuk jumlah Orang dalam Pantauan ODP total saat ini terdapat orang, yaitu sudah selesai masa pantau serta dinyatakan tidak ada […].
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Smart Watches. CB Radios. Features Low current leakage. Maintain constant tip temperature. Very thin solder, 0. But you have to "feed" the solder into the joint at the right speed, and unrolling another foot from the roll every couple joints gets old. Good for hand-soldering fine SMT parts. Thick solder, 0. But it is easy to put down too much solder, and seems to melt slower as the solder itself acts as a heat sink. I generally prefer "mid sized" solder, 0. It gives me a balance of controlling how much I put on a joint, without the hassle of feeding the hair-thin stuff.
Electronics flux can be rosin, water-based, or no-clean. All are about the same quality as far as de-oxidizing the copper so a good solder bond can be made. Rosin flux leaves an ugly, sticky residue. Cleaning it off takes either a LOT of water, or a nasty chemical solvent. You shouldn't leave it on, as it is slightly corrosive, and can also be somewhat conductive. This is falling out of usage due to the environmental impact of cleaning. Water-based aka Resin flux is less ugly, not sticky.
The stuff I have used leaves a white film behind. I have heard this film can cause problems with long term reliability. Some people just leave it on, but removal takes only a moderate amount of water. Again, not true. Lead cannot propagate through the skin. It can only be ingested by transference from fingers to food or cigarettes, or through inhalation if atomised. Different fluxes have different levels of activity and will help wetting and coalescence to different degrees.
These are commonly synthetic fluxes that do not "burn off' but remain after the joint has solidified and are inert so do not pose any long-term risk to the circuit from hygroscopic action or ionic contamination. It's a tricky topic to get good information on, but lead-free solder's supposed to be worse for you, overall. The transition to lead-free soldering has reduced strain on the environment, but for the operator, the hand soldering process has become more dangerous.
The lead in the solder is gone, but to get the solder wire to flow properly, substantially more flux must be used. The temperature needed to create a good solder joint using lead-free solder is also higher, causing a stronger reaction within the flux and creating more solder smoke with a greater number of particles.
In addition to particles, solder smoke can contain isocyanates, aldehydes, and other unhealthy substances. Recent research has suggested that the fumes and vapours emanating from lead-free solders may be even more dangerous to workers and the environment than those emitted by traditional lead containing solders And it is these fumes that seem to pose the most immediate risk. Many of these lead-free solders use rosin as a fluxing agent.
The fear is that that the higher temperatures required for lead-free soldering will significantly increase the amount of fume produced. As solder fume is one of the top eight causes of occupational asthma, Britain's Health and Safety Executive is very concerned about workers breathing in fumes from solders containing rosin-based fluxes, also known as 'colophony fume'. Anyone soldering with rosin-based fluxes is at risk of developing asthma.
The use of lead-free solders and components has provided immediate health benefits to electronics industry workers in prototype and manufacturing operations. Contact with solder paste no longer represents the same health-hazard it did before. You also have to worry about tin whiskers.
Sign up to join this community. The best answers are voted up and rise to the top. What are the different types of solder used for? Ask Question. Asked 11 years, 3 months ago. Active 3 years, 4 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes. In general, if you got it at the electronics hobby shop, it's good to use for hobbyist purposes. Improve this answer. And would it be more likely to be using a solder with high melting point temperature for products that are made in mass quantities?
I'm just trying to understand if this is a common thing to see, and if most companies use machine soldering or something I have this guitar pedal that my soldering iron can't desolder easily.. Through hole components are placed by hand and wave soldering attachs them to the board. Russel McMahon provided a good answer about the diffrent types of soldering here: electronics. Diameter of solder Very thin solder, 0. Flux Electronics flux can be rosin, water-based, or no-clean.
The vapor pressure of lead at Here's a chart: powerstream. Helped me picking my wire gauge and flux type too! Hedgehog Nov 6 '10 at Perhaps you can edit this bit. So, if you plan to sell what you are soldering, you may be required to use lead-free solder.
Mar 21 '15 at Organic lead compounds can be absorbed through the skin see is.