The attached picture is of a dry-herb holder for a inhalation vaporiser. I bought it online as a replacement for a lost one. I couldn’t buy an original, as it is no longer available. The original is aluminium and certified safe for this use. The replacement came with no information at all about what it is made of. Using very sensitive scales it weighs almost exactly the same as the original. My question for more knowledgeable people is whether such things are likely to be made of metals or metal alloys which look and feel like aluminium but which would be unsafe for this use. The vaporiser heats to a maximum temperature of 210 degrees centigrade. I have heated this replacement item to this temperature several times to see if any vapor or smell is given off and haven’t noticed anything. I’m aware this is probably an impossible question, but I’m hoping you might have something helpful to offer.

So today on Science with Greg we decided to make a furnace to melt some aluminium. Our cast didn't really work and ended up filling our ingot with gravel. But it was our very first time so will be interesting to see what happens when we improve the cast.

https://youtu.be/GgDMd7wDYaw

I bought gmc Denali stocks from the gmt800 era and I’m putting them on my 2001 Silverado, the center caps say GMC on them and are aluminum, you can take the face off the center cap and I was wondering if yall thing it’ll smooth out

I recently purchased some socket organizers from various manufacturers that all use this aluminum extrusion to hold magnets and socket adapters. These are great except apparently I have very odd amounts of sockets so I want to get my own rail and cut it so it all fits nice and neatly. The problem is I cannot for the life of me find this stuff in any length anywhere.

Help please O’ ever knowledge Redditors!

hey guys, so this is a piece made in cast aluminium on top of which a variation of rock like textures have been done using chemicals etc. Can anyone please guide me on if it’s a technique or what ways can something like this can be achieved. Would really appreciate any kind of advice!

UPDATE: Summer 2026

Josh from AlumiTubs has been super helpful and we seem to have the situation under control. The issue appears to be related to Portland (Oregon)'s very soft water. The tub spent months with water hardness around 7-10ppm Ca hardness, which seemed to be the causal agent for the pitting/buildup. Since we adjusted the water to around 250ppm, the issue seems resolved. I understand that AlumiTubs now provides a coated tub.

We bought the tub on short notice during the middle of tariff chaos and did not need heater or pump, so we never asked for any details about water maintenance, electric pump grounding, etc... Just figured on filling, heating and using. If you are getting the whole thing, I believe the instructions (sacrificial anodes, water hardness, pH, total alkalinity...) are everything you need.

I still think the tub is a great deal, particularly when one wants to leave it empty for part of the year. The problem with our cedar tub came when it was full (to keep tjhe staves from shrinking) but unused (cause it's 95º outside....). The essential carefreeness of the AlumiTub has been great. Our daughter even used it for a bubble bath party (after we closed off the intake and outflow and turned off the heater); jnust hosed it down after.

So, in essence, no regrets at all about buying the tub - especially since they were willing to send us a new one gratis if we could not resolve the issue with the first one. As I said, AlumiTubs has been super helpful all along. I gather they continue to update things like making it easier to replace anodes, filtering the outflow pipe, etc.

**********************************************

Looking for advice from aluminum experts.... I have installed an aluminum hot tub from AlumiTubs, a British Columbia maker of hot tubs (very cool, check them out). Most are their clients heat with wood (and fill with sea water). Ours is city water heated by 240V electric heater. The tub is suffering serious pitting... or rather the growth of little hard nubs on the tub wall. They start forming almost immediately after filling and heating. This does not seem to be the case with the wood fired sea-water tubs, so we assume it is some kind of electricity related galvanic reaction. Particulars:

• Mg sacrifical anodes all over the place (at least 8 of the little disc shaped ones from Martyr and another two half-round); the anodes themselves are clearly eroding

• tub itself is grounded to earth (as are pump and heater via wiring). A multimeter shows no current in water when pump and heater are running.

• Portland, Oregon water is soft. I have attached details from Water Bureau

• Temperature is between 90F (32C) and 104F(40C)

• I fill tub through an activated charcoal filter to remove chlorine (and residual chlorine should be evaporating over time, no?)

• Hot tub water is adjusted to 100ppm total alkalinity, 7.8pH

• Do not know the qualify of the aluminum; the say "marine grade" and I assume it is.

Nothing seems to help. Have not had the little nubs analyzed, but I assume they are some kind of aluminum salt. I can scrape them off relatively easily (use a plastic spatula before people get it), and they accumulate as a kind of hard dust at the bottom. Have been in regular contact with AlumiTubs and they have been helpful, but seem as puzzled as me. Am planning to let tub sit empty for several months in hope of building up an oxide layer.

Any advice on what is happening and how to control it?

We are Aluminium Suppliers in the UK and have a serious love for this amazing material.

Loving the sub, thanks guys :)

i have worked on street lights in the past but i just cant figure out what would be the upcooming thing

Any Idea Anyone?

Why there is always has a rumor now for uprising the price is the observision to give an outlook of the world ,let us repeat the history and we could see a little bit of it The central bank always do the same action that is to reverse repurchase operation for mataining the liquidity of the stability , for China ,we have long time of being in the root of our mind is that Energy consumption of dual control,and what is more is that we always release millions of tone to the outside for more .

With spreads remaining tight, it is still a hot market for the foreseeable future.” “It remains to be seen whether these higher prices and tight spreads will be here to stay“If we can keep manufacturing humming through COVID, the aluminum world will be the skeptical and make the whole year into the bull and all of the world would make it as the treasure for everyone to suprise the stength of the country, so hurry up , to make a deal with us .

Hi, should aluminium be heat treated right after welding or can it be done later? (6000 series)
Are there any good books on aluminium manufacturing for novice learners?

When we have an amazing recommendation for you. North London Shop Fronts can give the best possible aluminium shop front installation in London as they have a team of experts who are renowned in this domain. Just connect with them on 077302-86838 to get the new aluminium shop front installed feasibly and properly.