PQF mill, the world’s most advanced continuous steel pipe rolling equipment
PQF mill, the world’s most advanced continuous steel pipe rolling equipment
PQF mill is the latest and advanced steel pipe rolling mill to improve product quality, reduce cost and improve economic benefits.
From the perspective of technology, PQF mill has the following advantages compared with MPM mill.
(1) Closed-type pass design makes rolling more stable
The roll frame of the PQF continuous pipe rolling machine adopts the three-roll closed-type pass design, as shown in FIG. 1.
Fig. 1
In the rolling process, the metal deformation is stressed in three directions at the same time, so that the metal deformation is more uniform in the same section. The three rollers are arranged in 120 degree angles, and the front and rear stand rollers are arranged in 60 degree angles each other, to ensure the mandrel in the groove better alignment, so as to make the rolling process more smooth and stable.
(2) Unique mandrel circulation system and fewer holes in the spare mandrel
After the end of rolling, the mandrel stops. After the tube is extracted from the mandrel by the tube stripper, the mandrel is not sent back, but runs forward. After the tube stripper is put through, the mandrel is pulled out and then sent back, cooled and lubricated.
It retain the original advantage of MPM process, that is high precision characteristics of wall thickness. On the premise of better wall thickness precision than MPM, It reduces the mandrel line to be rolled (non-rolling) time, thus effectively shortens the rolling cycle, speeds up the rolling rhythm, and the fastest speed can reach 24s per piece.
The three-roll geometry can be adjusted to a larger range under the same mandrel without large tolerance effect.
As a result, the range of the wall thickness that can be rolled on the mandrel of one specification is increased, which greatly reduces the number of mandrel specifications (by 50%) and the frequency of tool replacement, and the production organization is also more flexible.
(3) It can improve the quality of steel tube and wall thickness precision, rolling thinner wall thickness steel tube.
Because of the small difference of linear velocity between the bottom and the edge of the roll pass of PQF continuous rolling pipe mil, the pass with smaller opening can be adopted, therefore, the metal deformation of the rolled piece is more uniform when the pipe is rolled by PQF continuous rolling pipe mill, and the transverse flow of the metal is less, which is better than that of the steel tube rolled by the two-roll MPM continuous rolling pipe mill in the following four aspects:
- wall thickness tolerance significantly improved;
- the surface of the pipe is much smoother;
- the D/S value of finished pipe can be increased without affecting the quality;
- mandrel continuous rolling pipe technology enters the field of small diameter steel pipe production;
Using the three-roll closed-type pass design, metal deformation on the same cross section is uniform, three roll can be simultaneously or separately adjusted under single drive and separate servo hydraulic pressure, realizing the roll gap adjustment model, so as to improve the wall thickness accuracy and reduce the wall thickness difference between end and the central part of the waste pipe.
The 120 degree angle arrangement of the three rollers ensures a better alignment of the mandrel in the pass, which results in a significant improvement in the tolerance of the wall thickness of the wasted tube after rolling.
Three roll sealing groove design, reducing the rolling roll bending moment, can achieve uniformity and stability of metal deformation, and rolling pressure, especially peak pressure decreases. Cracks and concave defects caused by uneven deformation in the process of rolling, has been basically eliminated, that means it can make rolling thin wall pipe and high grade varieties, such as rolling of 159 mm x4.0 mm, 463.0 mm x4mm thin wall steel tube, etc.
English
العربية
Nederlands
Français
Deutsch
Italiano
日本語
한국어
Português
Русский
Español
ไทย
Tiếng Việt
merci pour le partage.
Excellent article, thank you. Tommi Chancey Khichabia
Foi divertido ler seu artigo. Carolan Selby Grishilde
La lecture de votre article a été très agréable. Demetria Morgun Katey
My brother suggested I might like this blog.
He was totally right. This post actually made my day.
You can not imagine just how much time I had
spent for this information! Thanks!
Hello my friend! I want to say that this article is amazing, great
written and come with almost all important infos. I would like to peer more
posts like this .
For the reason that the admin of this web site is working, no hesitation very
soon it will be well-known, due to its feature contents.
What’s up i am kavin, its my first time to commenting anywhere, when i read this
piece of writing i thought i could also create comment due
to this brilliant piece of writing.
Wonderful blog! I found it while browsing on Yahoo News.
Do you have any tips on how to get listed in Yahoo News? I’ve been trying for a while but I never seem to get there!
Cheers
Keep this going please, great job!
Great article.
It’s wonderful that you are getting ideas from this post
as well as from our argument made at this time.
Saved as a favorite, I like your web site!
I’ve been browsing on-line more than three hours lately, yet I by
no means found any attention-grabbing article like yours. It’s
beautiful worth sufficient for me. In my view, if all website owners
and bloggers made good content material as you probably did, the net can be much more helpful than ever before.
I’m really loving the theme/design of your blog.
Do you ever run into any internet browser compatibility issues?
A couple of my blog audience have complained about my site not working correctly in Explorer but
looks great in Chrome. Do you have any ideas to help fix this problem?
Appreciation to my father who informed me regarding this
web site, this webpage is in fact amazing.
Very nice post. I just stumbled upon your weblog and wished to say that I’ve
truly enjoyed browsing your blog posts. After all I will be
subscribing to your feed and I hope you write again very
soon!
It’s in fact very complex in this active life to listen news on TV,
thus I only use web for that purpose, and take
the most recent information.
Inspiring quest there. What happened after? Take care!
Hi there, You’ve done a great job. I will definitely digg it and personally
recommend to my friends. I’m confident they’ll be benefited from this website.
Hi friends, good paragraph and pleasant urging commented here, I
am genuinely enjoying by these.
If some one desires to be updated with latest technologies therefore he must be visit
this website and be up to date every day.
Great post. I was checking continuously this weblog and I am impressed!
Extremely helpful info specially the ultimate phase :
) I care for such info much. I was seeking this particular
info for a very lengthy time. Thanks and best of luck.
It’s in fact very difficult in this full of activity life to listen news on TV, therefore I only use
the web for that purpose, and take the newest news.
Howdy I am so delighted I found your site, I really found you by mistake, while I
was researching on Yahoo for something else, Anyways I am
here now and would just like to say kudos for a incredible post and a
all round thrilling blog (I also love the theme/design), I
don’t have time to go through it all at the minute but I have saved it and also added your RSS feeds, so when I
have time I will be back to read a great deal more, Please do keep
up the great work.
I love your blog.. very nice colors & theme. Did you
design this website yourself or did you hire someone to
do it for you? Plz reply as I’m looking to
design my own blog and would like to find out where u got this from.
cheers
I really like your blog.. very nice colors & theme.
Did you design this website yourself or did you hire someone
to do it for you? Plz reply as I’m looking to construct my own blog and would like
to know where u got this from. many thanks
It’s an amazing piece of writing in support of all the online viewers; they will obtain benefit from it I am sure.
Spot on with this write-up, I really believe that this web site needs much more
attention. I’ll probably be returning to see more, thanks for the information!
Hi there, I discovered your website by way of Google while searching for a comparable
matter, your web site came up, it seems to be great.
I have bookmarked it in my google bookmarks.
Hi there, just become alert to your weblog thru Google, and
located that it is truly informative. I am going to
be careful for brussels. I will appreciate if you proceed this in future.
A lot of other people will likely be benefited from your writing.
Cheers!
Hi, all is going nicely here and ofcourse every one is sharing data,
that’s genuinely excellent, keep up writing.
It’s remarkable in support of me to have a website, which is good designed for my
experience. thanks admin
Howdy! Would you mind if I share your blog with my myspace group?
There’s a lot of people that I think would really enjoy your content.
Please let me know. Cheers
Outstanding story there. What occurred after?
Good luck!
I like the helpful info you provide to your articles. I will bookmark your blog and
test once more here frequently. I am relatively sure I’ll
be told lots of new stuff right right here! Good luck for the
next!
Do you mind if I quote a couple of your posts as long as I provide
credit and sources back to your site? My blog is in the exact
same area of interest as yours and my users would really benefit from
some of the information you present here. Please let me know
if this alright with you. Many thanks!
You really make it seem so easy with your presentation but I find this
matter to be really something that I think I would never understand.
It seems too complex and extremely broad for me. I’m looking forward for your next post,
I’ll try to get the hang of it!
It’s remarkable for me to have a site, which is helpful
for my experience. thanks admin
of course like your website however you need to test the spelling on several
of your posts. Many of them are rife with spelling problems and I
to find it very troublesome to tell the truth however I’ll certainly come again again.
Greate article. Keep writing such kind of information on your blog.
Im really impressed by your blog.
Hello there, You’ve performed an incredible job.
I’ll definitely digg it and in my opinion suggest to my friends.
I am confident they will be benefited from this web site.
Wow, this post is good, my younger sister is analyzing these
things, therefore I am going to convey her.
Attractive part of content. I simply stumbled upon your blog and in accession capital to assert
that I acquire in fact loved account your weblog posts.
Anyway I’ll be subscribing on your feeds and even I success you
get entry to persistently rapidly.
This blog was… how do I say it? Relevant!!
Finally I’ve found something that helped me. Kudos!
Write more, thats all I have to say. Literally,
it seems as though you relied on the video to make
your point. You definitely know what youre talking about, why waste your intelligence
on just posting videos to your site when you could be giving us
something enlightening to read?
My relatives every time say that I am wasting
my time here at net, however I know I am getting experience every day by reading such fastidious content.
Fastidious answers in return of this issue with real arguments and describing everything on the topic of that.
What’s up, after reading this amazing piece of writing i am
as well happy to share my familiarity here with colleagues.
Hey very nice blog!
Hello There. I found your blog using msn. This is an extremely well written article.
I’ll be sure to bookmark it and return to read more of your useful information. Thanks for the post.
I’ll definitely comeback.
I would like to thank you for the efforts you’ve put in penning this site.
I’m hoping to check out the same high-grade content by you in the future as well.
In fact, your creative writing abilities has inspired me to get my own, personal blog now 😉
Sweet blog! I found it while browsing on Yahoo News.
Do you have any tips on how to get listed in Yahoo News?
I’ve been trying for a while but I never seem to get there!
Appreciate it
What i don’t understood is in truth how you are no longer really a
lot more well-appreciated than you may be right now. You’re
so intelligent. You realize thus considerably on the subject of this matter, made me individually
imagine it from so many varied angles. Its like men and women are not interested unless it’s one
thing to do with Woman gaga! Your individual stuffs great.
At all times maintain it up!
I wanted to thank you for this great read!! I absolutely enjoyed every bit of it. I have you book marked to check out new stuff you post…
Hello just wanted to give you a quick heads up. The words in your content seem to
be running off the screen in Ie. I’m not sure if this is a formatting issue or something to do with
internet browser compatibility but I figured I’d post
to let you know. The style and design look great though!
Hope you get the problem resolved soon. Thanks
Tremendous things here. I’m very glad to see
your article. Thank you a lot and I’m having a look ahead
to contact you. Will you kindly drop me a e-mail?
Great items from you, man. I have remember your stuff prior to and you are simply extremely fantastic.
I actually like what you have received right
here, certainly like what you’re saying and the way by
which you assert it. You are making it entertaining and you still care for
to stay it smart. I can’t wait to read far more
from you. This is really a tremendous web site.
I have read so many articles or reviews concerning the blogger lovers
except this piece of writing is truly a nice piece of writing, keep it up.
We’re a group of volunteers and starting a new scheme in our community.
Your website offered us with valuable info to work on. You’ve done an impressive job and our entire community will be
thankful to you.
Hi, this weekend is fastidious designed for me, because this time i am reading this
fantastic informative article here at my residence.
This is a really good tip particularly to those fresh to the blogosphere.
Short but very accurate information… Many thanks
for sharing this one. A must read article!
You actually make it seem really easy together with your presentation but I in finding this matter to be actually one thing which
I feel I would by no means understand. It seems too complex and extremely extensive for me.
I’m looking forward in your next post, I will try to get the dangle of it!
Thank you for the auspicious writeup. It in truth was
a enjoyment account it. Glance advanced to more delivered agreeable from you!
By the way, how could we communicate?
Sweet blog! I found it while browsing on Yahoo News.
Do you have any tips on how to get listed in Yahoo News?
I’ve been trying for a while but I never seem to get there!
Cheers
A person necessarily lend a hand to make severely articles I would state.
That is the first time I frequented your website page and
to this point? I amazed with the analysis you made to make this actual post extraordinary.
Wonderful activity!
I just like the valuable info you supply for your articles.
I will bookmark your weblog and test again here frequently.
I am rather sure I’ll be informed lots of new stuff right here!
Good luck for the next!
You should take part in a contest for one of the greatest sites on the web.
I most certainly will recommend this site!
Excellent article. Keep writing such kind of information on your site.
Im really impressed by it.
Hello there, You’ve performed an incredible job.
I’ll certainly digg it and in my view recommend to my friends.
I am confident they will be benefited from this website.
Oh my goodness! Impressive article dude! Thanks, However
I am having troubles with your RSS. I don’t understand the reason why I am unable to join it.
Is there anyone else getting the same RSS problems?
Anyone that knows the answer can you kindly respond?
Thanks!!
Woah! I’m really enjoying the template/theme of this website.
It’s simple, yet effective. A lot of times it’s hard to get that “perfect balance” between usability and
visual appeal. I must say you’ve done a amazing job with this.
Also, the blog loads very fast for me on Firefox. Outstanding Blog!
Hi there! This is my first comment here so I just wanted to give a
quick shout out and say I really enjoy reading your blog
posts. Can you suggest any other blogs/websites/forums that cover the same topics?
Appreciate it!
Hi there to all, the contents present at this web site
are actually awesome for people knowledge, well, keep up the nice
work fellows.
Wow, wonderful blog layout! How long have you been blogging for?
you make blogging look easy. The overall look of your web site is fantastic,
as well as the content!
I really love your site.. Pleasant colors & theme. Did you create this amazing site
yourself? Please reply back as I’m wanting to create my own personal
blog and would like to know where you got this from or exactly what the
theme is named. Cheers!
Every weekend i used to pay a quick visit this site, as i want enjoyment, for the reason that this this web site conations in fact good
funny data too.
I must thank you for the efforts you’ve put in penning this website.
I’m hoping to see the same high-grade blog posts from you in the
future as well. In fact, your creative writing abilities has motivated me to get my own, personal site
now 😉
Nice response in return of this query with firm arguments and
explaining all about that.
I am trying to start a formal, influential blog and I want to make sure it is professional. Since I have little to no blogging experience, I am trying to save some time by asking you..
I think what you published was actually very reasonable.
However, think on this, what if you added a little content?
I ain’t saying your content isn’t good., however
suppose you added a headline that makes people desire more?
I mean PQF mill, the world’s most advanced continuous steel pipe rolling equipment | IMRI Steel is kinda plain. You could look at Yahoo’s home page and note how they create
news headlines to grab people to click. You might add a video or
a related picture or two to grab readers excited about what you’ve got to say.
Just my opinion, it would make your website a little bit more interesting.
Hey there, I think your blog might be having browser compatibility issues.
When I look at your blog in Firefox, it looks fine but when opening in Internet
Explorer, it has some overlapping. I just wanted to give you a quick heads
up! Other then that, wonderful blog!
The content bring great value for readers. I can’t stop reading news in this site everyday basketball legends
I would like to thank you for the efforts you’ve put in writing
this blog. I’m hoping to see the same high-grade blog posts
from you later on as well. In fact, your creative writing abilities has inspired me to get
my own website now 😉
It’s amazing designed for me to have a web page, which is helpful
in favor of my know-how. thanks admin
Useful information. Fortunate me I found your web site accidentally, and I am shocked why this twist of fate
didn’t came about in advance! I bookmarked
it.
Thank for your writting! I have read through some similar topics! However, your article gave me a very special impression, unlike other articles. I hope you continue to have valuable articles like this or more to share with everyone!
fantastic points altogether, you simply won a
new reader. What would you suggest about your post that you just made some days ago?
Any sure?
The information you have provided in this article is very significant.
Hi my loved one! I wish to say that this post is amazing, nice written and include
approximately all significant infos. I’d like to peer more posts like
this .
I’m still learning from you, while I’m trying to achieve my goals. I certainly enjoy reading all that is written on your blog.Keep the stories coming. I enjoyed it!
Hey there! I’m at work browsing your blog from my
new iphone! Just wanted to say I love reading through your blog and look forward to all your posts!
Keep up the excellent work!
Thank you a lot for sharing this with all of us you actually realize what you
are talking about! Bookmarked. Kindly additionally consult with my website =).
We may have a link trade arrangement between us
Hi there to every one, the contents existing at this
website are actually awesome for people knowledge, well, keep up the nice work fellows.
What’s up, just wanted to mention, I enjoyed this article.
It was helpful. Keep on posting!
Excellent way of explaining, and pleasant piece of writing to obtain information concerning my presentation focus, which i am going to deliver in college.
My brother suggested I might like this web site.
He was once totally right. This publish actually made my
day. You can not consider just how a lot time I had spent for this
information! Thanks!
Good web site you have here.. It’s difficult to find quality
writing like yours nowadays. I seriously appreciate people like you!
Take care!!
An outstanding share! I’ve just forwarded this onto a co-worker who has
been conducting a little research on this. And he actually ordered
me lunch simply because I discovered it for him…
lol. So let me reword this…. Thank YOU for the meal!!
But yeah, thanx for spending the time to talk about this issue here on your web site.
Hi to every single one, it’s genuinely a good for me to pay a visit this website, it includes helpful Information.
I have to thank you for the efforts you’ve put in writing this website.
I really hope to check out the same high-grade blog posts by you later on as
well. In truth, your creative writing abilities has motivated me to get my own website now 😉
I’ve been surfing online greater than 3 hours these days, yet I by no means discovered any interesting
article like yours. It is beautiful worth sufficient for me.
Personally, if all web owners and bloggers made just right content as you probably
did, the web can be much more helpful than ever before.
I pay a quick visit each day some sites and information sites to read articles, except
this blog presents quality based content.
This paragraph gives clear idea designed for the new users of blogging,
that genuinely how to do blogging and site-building.
you are really a excellent webmaster. The website loading speed is incredible.
It seems that you’re doing any distinctive trick. Also, The contents are masterwork.
you’ve performed a magnificent task on this subject!
Hello there! Would you mind if I share your blog with my zynga group?
There’s a lot of folks that I think would really appreciate your content.
Please let me know. Many thanks
I would like to thank you for the efforts you’ve put in penning this website.
I’m hoping to see the same high-grade content by you later on as
well. In fact, your creative writing abilities has inspired me to get my own, personal site now
😉
Your style is so unique compared to other people I’ve read stuff from.
Many thanks for posting when you have the opportunity, Guess I’ll just bookmark this page.
Hello to all, how is everything, I think every one is getting more from
this web site, and your views are pleasant in favor
of new visitors.
Howdy! I realize this is sort of off-topic but I had
to ask. Does building a well-established website like yours require a massive
amount work? I’m brand new to operating a blog however I do write in my diary daily.
I’d like to start a blog so I can share my own experience and thoughts online.
Please let me know if you have any recommendations or tips for new aspiring
blog owners. Appreciate it!
My brother recommended I might like this website.
He was entirely right. This post truly made my day.
You cann’t imagine just how much time I had spent for this info!
Thanks!
This is the right web site for anybody who wants to understand this topic.
You understand so much its almost hard to argue with you (not that I actually will need to…HaHa).
You certainly put a fresh spin on a topic that’s been discussed for decades.
Wonderful stuff, just excellent!
Having read this I believed it was really enlightening.
I appreciate you finding the time and effort to put this content together.
I once again find myself personally spending a lot of time both reading and leaving comments.
But so what, it was still worth it!
This is a great tip especially to those new to the blogosphere.
Brief but very accurate information… Thank you
for sharing this one. A must read article!
Aw, this was a very nice post. Spending some time and
actual effort to create a good article… but what can I say… I put things
off a lot and don’t manage to get nearly anything done.
Wow, this article is pleasant, my sister is analyzing these things, therefore I am going to convey her.
I got this website from my friend who told me on the
topic of this site and at the moment this time I am visiting this web site and reading
very informative posts at this place.
What a information of un-ambiguity and preserveness of valuable familiarity on the topic of unexpected
emotions.
Having read this I thought it was rather informative.
I appreciate you spending some time and energy to put this
informative article together. I once again find myself personally spending
way too much time both reading and leaving comments. But so
what, it was still worthwhile!
What i do not realize is in truth how you’re not actually much
more well-favored than you may be right now.
You’re so intelligent. You realize therefore significantly when it comes to this matter, produced me personally imagine it from a lot of numerous angles.
Its like men and women are not involved until
it is something to do with Lady gaga! Your individual stuffs great.
At all times take care of it up!
I need to to thank you for this fantastic read!! I absolutely loved every bit of it.
I’ve got you saved as a favorite to check out new stuff you post…
Do you have a spam issue on this blog; I also am a blogger,
and I was wondering your situation; we have created some
nice practices and we are looking to swap strategies with others, why not shoot me an email if interested.
Howdy! This is my 1st comment here so I just wanted to give a quick shout out and tell you I
really enjoy reading your articles. Can you recommend any other blogs/websites/forums that
cover the same topics? Appreciate it!
I am really impressed with your writing abilities as well as with the
structure in your blog. Is that this a paid subject matter or did you customize it yourself?
Either way stay up the excellent quality writing, it’s uncommon to look a nice blog like this one today..
Appreciate the recommendation. Will try it out.
Great post.
Simply want to say your article is as astounding. The clarity in your post is simply nice and i could
assume you’re an expert on this subject. Fine with your permission allow me to grab your feed to keep updated with forthcoming post.
Thanks a million and please keep up the rewarding work.
For the reason that the admin of this web site is working, no uncertainty very shortly
it will be renowned, due to its feature contents.
Thanks very nice blog!
Great web site. Lots of useful info here. I am sending
it to some pals ans additionally sharing in delicious.
And obviously, thank you for your sweat!
Everyone loves what you guys tend to be up too. This kind of
clever work and reporting! Keep up the superb works guys I’ve added you guys
to blogroll.
Very nice post. I just stumbled upon your blog and
wanted to say that I’ve truly enjoyed surfing around your blog posts.
In any case I’ll be subscribing to your rss feed and I hope you write
again soon!