不鏽鋼閘質料請教!

剛睇到有位師兄的鐵閘用左十幾年,
外型唔好睇,但穩固!

依家不鏽鋼閘好多都係非常單薄!
只係得個外型!
問過閘舖,話以前係用台灣不鏽鋼料,
質料好,但貴。
因少人用,依家都難搵!
情況不知是否如此!?

鋼門鋼閘的不鏽鋼材料最好用316L片材或304L枝柱,L表示碳含量低於0.03%較宜焊接用。當然要有一定厚度提供足夠機械強度,大廈變壓器房鋼門指定用316L及一定厚度,香港都有好多公司做,想堅固耐用d都得,價錢相對貴d。

TOP

訂做講明要用厚料一定得,
用足幾隻一吋子彈較貨車都插唔入!
不過價錢同重量你接唔接受到?

TOP

正常用不常接觸水304不銹鋼已足夠,如電梯門等

TOP

湯始有做304料不鏽鋼閘,但好貴一度住家用閘成皮野。

TOP

提示: 作者被禁止或刪除 內容自動屏蔽

TOP

316L基本上浸咸水都無問題,304就差316L一D,但平D同夠一般使用

TOP

提示: 作者被禁止或刪除 內容自動屏蔽

TOP

淘寶有快速測試藥水

十幾廿蚊1枝

via HKEPC Reader for Android

TOP

唔用測試劑可用磁石試下。
Quoted:   The most popular stainless steel is Type 304, which contains approximately 18 percent chromium and 8 percent nickel. At room temperature, the thermodynamically stable crystal structure of 304 stainless steel is bcc; nevertheless, the alloy's nickel concentration, as well as the small amounts of manganese (about 1 percent), carbon (less than 0.08 percent) and nitrogen (about 0.06 percent), maintains an fcc structure and therefore the alloy is nonmagnetic. If the alloy is mechanically deformed, i.e. bent, at room temperature, it will partially transform to the ferritic phase and will be partly magnetic, or ferromagnetic, as it is more precisely termed.
From:   http://www.scientificamerican.co ... nt-magnets-work-on/

TOP