qomuniguest خوش آمديد صندوق پستي | جستجو | راهبري | عناوين فعال | پروفایل |

tJQtXXkwonTdQhctT Options
qomuniguest
ارسال شده: 14 تير 1399 14:47:17

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA


مقدمه
بيشتر ادبيات در مورد خوردگي فلزات مايع از فولادهاي ضد زنگ در مورد فلزاتي مانند سديم ، پتاسيم ، ليتيوم و غيره كه به عنوان رسانا خنك كننده فلز مايع در كاربردهايي مانند نيروگاه هسته اي مورد استفاده قرار مي گيرند ، بحث مي كند.
فلزاتي كه مورد توجه بيشتر كاربران صنعتي قرار گرفته احتمالاً آلومينيوم ، مس ، سرب ، قلع و روي براي تجهيزات لحيم كاري مدار الكتريكي و يا در كاربردهاي ريخته گري غير آهني است.
بيشتر اين نوع برنامه ها شامل تماس كوتاه مدت است ، در حالي كه داده هاي جدول خوردگي معمولاً تماس طولاني مدت را در نظر مي گيرند. بنابراين تفسير اطلاعات موجود به طور كلي مورد نياز است.
بسته به موارد زير ، حمله مي تواند پيچيده باشد.

• سطح و تركيب ناخالصي


• چرخه دما و زمان گرمايشي و سرمايشي


• سرعت فلز مايع (تلاطم)

حمله مي تواند يكنواخت (transgranular) يا بين دانه اي باشد ، كه استفاده از داده هاي جدول خوردگي را دشوار مي كند.
مقاومت در برابر آلومينيوم مذاب (Mp 660 ° C)
در شرايط درگير با آلومينيوم بايد از فولادهاي ضد زنگ كه داراي مقاومت در برابر خوردگي محدود در محل ذوب و مقاومت در برابر خوردگي طولاني مدت در دماي 700 درجه سانتيگراد هستند استفاده شود. برخي از اپراتورهاي ريخته گري عملكرد قابل قبولي را از طريق اجزاي ملاقه و همزن پيشنهاد كرده اند. برخي ديگر عمر سرويس را نامنظم و خوردگي به عنوان يك مشكل دانستند.
مقاومت در برابر مس مذاب (mp 1083 ° C)
اطلاعات كمي در دسترس است ، اما حمله مرزي دانه بر روي فولادهاي ضد زنگ قابل انتظار است. انواع فريتي مانند 1.4016 (430) ممكن است گزينه هاي بهتري نسبت به آستنيتيك باشند ، كه معمولا در آلياژهاي مس و مس مذاب به سرعت شكست بخورد.
مقاومت در برابر سرب مذاب (mp 327 ° C)
سرب ، در حضور اكسيژن ، نسبت به سرب پوشش داده شده با يك لايه زغال سنگ به خورده شدن مستعد تر است. در 400 درجه سانتيگراد مي توان برخي از حمله ها به نوع 1.4301 (304) را پيش بيني كرد. نوع 1.4401 (316) و آستنيت آلياژ بالاتر بايد مقاوم باشد.




اگر درجه حرارت به اندازه 900 درجه سانتيگراد باشد ، در صورت جلوگيري از خوردگي شديد ، لايه مهار كننده اكسيداسيون زغال سنگ ضروري است. هرگونه آنتيموان موجود در سرب مي تواند خطر خوردگي را افزايش دهد.
مقاومت در برابر روي مذاب (Mp 419 درجه سانتيگراد)
داده هاي جدول خوردگي نشان مي دهد كه روي در دماي 500 درجه سانتيگراد براي فولادهاي ضد زنگ فريتيك و آستنيتي بسيار تهاجمي است ، اما براي تماس كوتاه مدت ، نوع 316 ذكر شده است كه ارزش در نظر گرفتن دارد. حمله بين دانه اي با وجود روي مذاب مي تواند يك خطر محسوب شود.
انواع آستنيتي موليبدن 6٪ آلياژي بالاتر ، مانند 1.4547 (254SMO) ، نشان داده شده است كه به طور قابل توجهي بهتر از نوع 1.4401 (316) هستند و در صورتي كه هزينه اضافي قابل توجيه باشد ، بايد مورد بررسي قرار گيرد.
مطالعه مقالات بيشتر در رابطه با ورق استيل در وبسايت گروه فلز


Industry Email List
qomuniguest
ارسال شده: 23 مرداد 1399 01:24:30

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I precisely wished to thank you very much again. I am not sure the things I might have carried out without the actual recommendations discussed by you directly on my topic. It had become a very troublesome setting in my circumstances, however , spending time with the very specialised style you processed that forced me to leap over happiness. Im grateful for the information and even believe you really know what an amazing job you are carrying out instructing others with the aid of your blog. Most probably you havent come across all of us.
nike air max 270 http://www.nike270.us

Industry Email List
qomuniguest
ارسال شده: 25 مرداد 1399 04:51:31

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
My wife and i ended up being very fulfilled Ervin managed to do his inquiry while using the precious recommendations he was given from your web site. Its not at all simplistic to simply find yourself handing out concepts which usually many people have been making money from. And we all realize weve got you to thank for this. All the illustrations you made, the easy web site navigation, the friendships you will aid to promote - its many sensational, and its assisting our son and the family imagine that that situation is satisfying, which is certainly unbelievably indispensable. Many thanks for the whole thing!
golden goose sneakers http://www.goldengoosesneakers.org

Industry Email List
qomuniguest
ارسال شده: 27 مرداد 1399 17:35:30

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
My wife and i got very thrilled that Jordan could carry out his survey using the ideas he had while using the weblog. It is now and again perplexing to simply happen to be giving out helpful hints which other folks may have been making money from. We take into account weve got you to be grateful to for this. The most important explanations youve made, the straightforward blog navigation, the friendships you will give support to foster - its got most astounding, and its aiding our son in addition to us understand the matter is pleasurable, and thats rather essential. Thank you for all!
birkin bag http://www.hermesbirkins.com

Industry Email List
qomuniguest
ارسال شده: 2 شهريور 1399 01:37:46

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
Thank you a lot for providing individuals with a very superb possiblity to read articles and blog posts from this website. It really is very excellent and also packed with fun for me and my office fellow workers to search your blog really 3 times per week to learn the fresh items you will have. And definitely, we are actually astounded considering the stunning hints you serve. Selected 3 facts in this post are particularly the most suitable we have ever had.
yeezy shoes http://www.shoesyeezy.us

Industry Email List
qomuniguest
ارسال شده: 4 شهريور 1399 02:48:53

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I not to mention my buddies were found to be looking through the great items located on your web blog then before long got an awful feeling I never thanked the website owner for those tips. My men happened to be consequently stimulated to read them and have now undoubtedly been taking advantage of those things. We appreciate you actually being very accommodating and then for having varieties of cool information most people are really needing to know about. My sincere regret for not expressing appreciation to earlier.
calvin klein http://www.calvinkleinoutlet.us.com

Industry Email List
qomuniguest
ارسال شده: 6 شهريور 1399 04:31:06

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I simply wanted to send a small message to express gratitude to you for those superb tips and tricks you are giving on this site. My incredibly long internet investigation has finally been rewarded with good insight to go over with my best friends. I d admit that we readers actually are undeniably lucky to live in a good community with many perfect people with interesting secrets. I feel rather happy to have encountered your entire webpages and look forward to so many more amazing times reading here. Thank you once more for a lot of things.
cheap jordans http://www.jordansforcheap.us.com

Industry Email List
qomuniguest
ارسال شده: 8 شهريور 1399 07:04:44

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I want to show my thanks to this writer just for rescuing me from this instance. Just after checking throughout the the web and finding concepts which were not productive, I assumed my life was well over. Being alive minus the strategies to the issues youve sorted out by means of your main guide is a serious case, and those which may have in a negative way damaged my career if I hadnt encountered the blog. That capability and kindness in playing with every aspect was tremendous. I dont know what I would have done if I had not encountered such a solution like this. I am able to now look ahead to my future. Thanks for your time very much for this expert and results-oriented guide. I will not think twice to suggest your web blog to any person who needs and wants guidelines about this topic.
golden goose outlet http://www.goldengoosesonline.com

Industry Email List
qomuniguest
ارسال شده: 12 شهريور 1399 05:24:17

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I actually wanted to jot down a brief message in order to express gratitude to you for some of the fabulous guides you are sharing on this site. My considerable internet look up has finally been paid with excellent facts and techniques to talk about with my neighbours. I would mention that most of us site visitors are extremely lucky to be in a perfect community with so many special professionals with valuable tips and hints. I feel somewhat grateful to have discovered the weblog and look forward to some more cool times reading here. Thank you once more for a lot of things.
http://www.balenciaga.us.com

Industry Email List
qomuniguest
ارسال شده: 13 شهريور 1399 23:05:00

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I�d should check with you here. Which isnt something I often do! I get pleasure from studying a post that can make folks think. Additionally, thanks for permitting me to comment!
supreme new york http://www.supreme-newyork.us.com

Industry Email List
qomuniguest
ارسال شده: 14 شهريور 1399 18:09:58

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
qomuniguest
ارسال شده: 14 شهريور 1399 22:36:07

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I�d have to check with you here. Which is not one thing I usually do! I enjoy reading a publish that will make people think. Additionally, thanks for allowing me to comment!
lebron james shoes http://www.lebronjamesshoes.name

Industry Email List
qomuniguest
ارسال شده: 16 شهريور 1399 01:23:09

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I discovered your weblog website on google and examine a couple of of your early posts. Continue to maintain up the excellent operate. I simply further up your RSS feed to my MSN Information Reader. Seeking forward to studying extra from you later on!?
jordan 11 http://www.jordan11retro.us.com

Industry Email List
qomuniguest
ارسال شده: 17 شهريور 1399 01:29:05

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
WONDERFUL Post.thanks for share..more wait .. ?
retro jordans http://www.retrojordanssale.com

Industry Email List
qomuniguest
ارسال شده: 18 شهريور 1399 03:29:07

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
This really answered my drawback, thanks!
off white jordan 1 http://www.offwhitejordan1.us.com

Industry Email List
qomuniguest
ارسال شده: 20 شهريور 1399 03:17:21

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I�d have to check with you here. Which is not one thing I often do! I take pleasure in reading a submit that can make folks think. Also, thanks for allowing me to comment!
air jordans http://www.cheap-airjordans.us.com

Industry Email List
qomuniguest
ارسال شده: 21 شهريور 1399 02:22:05

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
I�d must verify with you here. Which is not something I normally do! I enjoy reading a post that will make folks think. Additionally, thanks for permitting me to remark!
goyard handbags http://www.goyardhandbags.us.org

Industry Email List
qomuniguest
ارسال شده: 22 شهريور 1399 04:37:58

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
very nice submit, i definitely love this web site, carry on it
kobe 11 http://www.kobebasketballshoes.net

Industry Email List
qomuniguest
ارسال شده: 23 شهريور 1399 07:30:55

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
There are some interesting cut-off dates on this article however I don�t know if I see all of them center to heart. There may be some validity but Ill take maintain opinion until I look into it further. Good article , thanks and we would like more! Added to FeedBurner as nicely
goyard bags http://www.goyards.us.org

Industry Email List
qomuniguest
ارسال شده: 25 شهريور 1399 22:56:39

رتبه: Guest
گروه ها: Member

زمان عضويت: 1388-5-1
ارسالها: 812,349
امتيازها: 2,472,061
مکان: USA
The next time I read a weblog, I hope that it doesnt disappoint me as a lot as this one. I mean, I do know it was my option to learn, but I truly thought youd have something interesting to say. All I hear is a bunch of whining about something that you would repair if you happen to werent too busy searching for attention.
supreme clothing http://www.supremesclothingstore.com

Industry Email List
كاربراني كه اين عنوان را مشاهده كرده اند.
qomuniguest


پرش به تالار
شما مي توانيد در اين تالار ارسال کنيد.
شما مي توانيد در اين تالار به عناوين پاسخ دهيد.
شما مي توانيد در اين تالار ارسالهاي خود را حذف کنيد.
شما مي توانيد در اين تالار ارسالهاي خود را ويرايش کنيد.
شما مي توانيد در اين تالار يك نظر خواهي ايجاد كنيد.
شما مي توانيد در نظر خواهي هاي اين تالار شركت كنيد.

Rss اصلي تالار : RSS