중국에서 사용되는 코런덤 연마제의 특성과 용도는 표 1-1-3과 같다.
| 코런덤 품종 | 특징 | 사용 |
| 갈색 코런덤 | 갈색 코런덤은 외관이 갈색이며, 주요 화학 성분은 Al₂O₃이며, 함량은 94.5% ~ 97%로 경도가 높고, 인성이 강하며, 입자가 예리하고, 가격 특성이 비교적 낮아 인장 강도가 높은 금속을 연삭하는 데 적합하며, 다른 연마제가 없는 경우 일반적으로 대체하여 사용할 수 있습니다. | 탄소강, 일반 합금강, 가단 주철, 경질 청동 등과 같은 일반 강의 거친 연삭에 널리 사용됩니다. 갈색 코런덤의 2차 연마제는 종종 연삭 쌀 연삭 휠, 수지 절단 연삭 휠, 연마 타일, 사포, 사포 등으로 사용됩니다. |
| 화이트 코런덤 | 화이트 코런덤의 경도는 브라운 코런덤보다 약간 높지만 인성이 약간 떨어지고 절삭시 공작물을 절단하기 쉽고 자체 연삭이 더 좋으며 발열이 적고 연삭 능력이 강하고 효율이 높으며 가격이 브라운 코런덤보다 높습니다. | 고속강, 상업용 탄소강, 담금질강, 합금강 등 경도가 높은 강재의 연삭에 적합합니다. |
| 단결정 코런덤 | 단결정 코런덤 연마제의 입자는 단결정으로 구성되어 있으며, 좋은 다중 프리즘 절삭날, 높은 경도와 인성, 강력한 연삭 능력, 적은 연삭열을 가지고 있습니다. 단점은 생산 비용이 높고 생산 과정에서 폐가스와 폐수가 발생하며 생산량이 낮다는 것입니다. | 단결정 코런덤 연마재는 생산 조건에 따라 제한을 받으며 일반적으로 내열 합금 및 마모되기 쉬운 금속 재료의 연삭에만 권장되는 반면, 스테인리스강, 고바나듐 고속도강, 내열 합금강 및 변형되기 쉽고 타기 쉬운 공작물과 같은 단단하고 인성이 어려운 금속 재료를 연삭하는 데 사용할 수 있습니다. |
| 미세결정질 코런덤 | 갈색 코런덤의 파생품종에 속하며, 외관 색상과 화학성분이 갈색 코런덤과 유사하고, 결정크기가 작고(50~280/μm), 연마입자의 인성이 양호하고, 강도가 높으며, 자체연마성이 양호하다. | 스테인레스강, 탄소강, 볼연삭 주철 등의 연삭에 적합하며 연삭방법은 성형밀링, 절삭연삭, 미세연삭, 중부하연삭에 적합합니다. |
| 크롬 코런덤 | 이것은 장미색 외관, 흰색 코런덤과 유사한 경도, 흰색 코런덤보다 약간 더 높은 인성, 높은 강도, 좋은 연삭 성능 및 높은 연삭 정확도를 가진 흰색 코런덤의 파생 품종입니다. 이 연삭재로 만든 연삭재는 좋은 형태 유지력을 가지고 있습니다. | 적용 범위는 화이트 코런덤과 유사하며, 특히 다양한 도구, 측정 도구 및 계측기 부품의 미세 연삭 및 성형 연삭에 적합합니다. 일반적으로 크롬 코런덤은 화이트 코런덤보다 연삭 특성이 더 좋습니다. |
| 지르코늄 코런덤 | 지르코늄 코런덤은 α-Al₂O₃ 및 Al₂O₃-ZrO2로 구성된 공결정 화합물로, 경도는 약간 낮지만 인성 값이 크고 강도가 높으며 결정 크기가 일반적으로 얇고 내마모성이 우수합니다. | 외국산 지르코늄 코런덤 연마재는 주로 중부하 연삭에 사용되며 내열 합금강, 친 합금강, 오스테나이트계 스테인리스강 연삭에 적합합니다. |
| 소결된 코런덤 | 보크사이트 또는 산화알루미늄 분말의 미세한 물질로 소결되어 있으며, 인성이 좋은 것이 특징이며, 다양한 특수 모양과 크기의 연마 입자로 만들 수 있습니다. |
주로 중부하 연삭 잉곳 연삭 휠에 사용되며 스테인리스강 잉곳 연삭 등에 적합합니다. |
| 검은 강철 옥 | 갈색 코런덤의 파생품종에 속하며 검은색 외관을 가지고 있습니다. Al₂O₃ 함량이 낮고 Fe₂O₃가 일정량(약 10%) 존재하는 것이 특징이므로 경도는 낮지만 인성은 좋습니다. | 주로 제품의 전기 도금 전 연삭이나 거친 연삭과 같은 자유 연삭에 사용되며 코팅된 연마제를 만드는 데에도 사용됩니다. 수지 절단 시트, 연마 블록 등 |
Dabetlive’s sports betting section is pretty good honestly, worth checking out if you’re into that sorta thing. I like to use Dabetlive. You can visit this link: dabetlive
I’ve had some good runs on iwincash. They have a nice selection of slot games and the occasional bonus helps. Why not go and explore: iwincash
Jili17logindownload is a website with useful information. Try it: jili17logindownload
Downloaded the xoso66app last week. Super convenient. Can play on my lunch break now. Plus, it runs smooth. xoso66app
Been playing at 661betcom for a while now, and it’s a great platform. Plenty of games to choose from and easy withdrawals. 661betcom
Dream86bet is another great option to choose from with new games being offered regularly, which is why I like them so much. dream86bet
Saw some friends playing on ae888co and decided to jump in. Hoping to get lucky! Check it out and see if you can win big: ae888co
Giving 5678bet a try! Fingers crossed for some good wins. Looks like they have a good selection of games. Come play with me: 5678bet
Spotted PKWinlogo and decided to see what it’s all about. The logo looked cool, so why not? Check them out and tell me what you think: pkwinlogo
B52.cc is pretty solid, good selection of games and the payouts seem legit. I’ve had a good experience so far. Give it a try and see for yourself. b52.cc
Downloaded the betvnapp the other day. Easy to use on my phone, and the interface is pretty clean. Worth downloading if you’re into mobile betting. betvnapp
Pingback: hello world
Bee ph Casino is on fire Great payouts and fun games If you want to enjoy and win big come here bee ph casino
The vibes in Sprunki – Feed Simon are immaculate! The music is an absolute banger, and the gameplay feels so smooth. Can’t wait to see more from this creator!
Just started playing Sprunki – Feed Simon and I’m already noticing some cool mechanics. Anyone else having trouble with the timing windows? Still, the core gameplay vibes are solid.
Trying out Sprunki Phase 80 right now. That beat drop in the middle is fire! Love how the characters react to the rhythm. Definitely my new favorite phase.
A very reliable site with a lot of exciting options. I feel safe playing here and the rewards are awesome. Go to phsky234 now.
Finally found a login page that actually works without any glitches. Fast access and the interface is super clean. Love using gday9login for my daily sessions.
The slots here are honestly so addictive and the graphics are top notch. I hit a nice little jackpot last night. Give 618cashslot a try if you love spinning.
I really love the VIP treatment here. The bonuses are insane and the payouts are super fast. Best gaming experience so far! phwinvip
Finally found a site where the login is smooth and the slots actually hit. Highly recommended for all slot lovers in the PH. phwinslotlogin
The game variety here is amazing. It feels like a real casino right on my phone. I had a great time winning last night. phwincasino
I’ve been looking for a smooth app like this for a while. The interface is super intuitive and the payouts are actually fair. Highly recommend checking out lndiluckapk if you love gaming on the go!
Finally a platform that doesn’t lag during peak hours. I had a great run last weekend and the withdrawal process was surprisingly fast. Definitely give supwinapp a try.
The login process is seamless and the game variety is impressive. I love how they keep updating the bonuses every week. Just hit the kyasino88login page to get started.
I really enjoy how transparent and player first this casino operates. The slot collection features all my favorite providers and the return rates feel genuinely fair. Customer support is available around the clock and always resolves issues quickly. A refreshing spot for anyone who values honesty and fun. autruebluecasino
I stumbled upon this site by accident and now I cannot play anywhere else. The loyalty rewards stack up quickly and the monthly tournaments keep things fresh. Everything just works the way it should without hidden tricks. bddkwin9
Been chasing this name for a while and it finally delivered on every promise. The registration took two minutes and I was playing my favorite slots right away. Withdrawals are processed overnight and the interface feels premium without any clutter. A genuine step up from the usual spots. th818king
Feels like a cozy corner of a real casino where they actually care about their players. The table games have great limits and the dealers are professional yet warm. I always leave feeling satisfied with the experience. casinosantafeonline
I have been playing here for a few months and the customer support is absolutely top notch. Every withdrawal goes through without any hassle and the game selection keeps me entertained for hours. Highly recommend this spot to anyone looking for a reliable gaming experience vn1bmw
Swerte, eh? Heard some folks talkin’ about it. Anybody else had any luck there? Thinking of throwin’ a few bucks in to see what’s up. Find your luck here: swerte
So, I stumbled on 678bet. It’s alright haha. I was a bit wary, but it seems legit enough for a little risk. The games seem kinda fair and worth risking the cash. Go check it out: 678bet.
Guys, seriously, nohu56 is the real deal. Found some awesome new games I haven’t seen anywhere else. Customer service was quick to respond when I had a question. A+ experience so far. Definitely recommend!
Signing up was hassle free and I love how straightforward the navigation is. Every game loads fast and customer support responds within minutes. It is nice to find a platform that keeps things simple without cutting corners on quality. Highly recommend giving it a try. iboplaylogin
Walking into this site feels like stepping into a royal lounge where players get top tier attention. The game library is massive and every slot runs with perfect graphics on my tablet. I truly enjoy how fair and transparent every spin really is. 1kingcasino
I have been searching for a reliable app that actually works without lagging and finally found it. The interface is so clean and easy to navigate even if you are new to online betting. Deposits go through instantly and I never have to worry about hidden fees. Really happy with my experience so far. bizbetapk
I started testing 8okplaycasino last month and the registration flow is the smoothest I have seen. Bonuses arrive exactly as promised and the game providers keep things fresh. A trustworthy name for anyone looking for stress free entertainment 8okplaycasino
Started as a casual player and now I am hooked on the free games available. The dice options are fresh and I love that I can practice without any pressure. Safe environment and fair gameplay across the board. jokerjewelsdicegratis
As someone who plays regularly I can honestly say this platform respects its users the most. The support team responds in minutes and the banking options cover everything I need. It has quickly become my go to place for quality gaming. pk777betonlinecasino
This place has quickly become my go to for some quality downtime. The slots run smoothly on my phone and I never dealt with lag during my sessions. Withdrawals hit my account faster than I expected. Definitely a refreshing experience for local players. phvaycasino
Been playing online for years and this login page makes everything so effortless. No complicated steps just a quick tap and I am ready to go. I really enjoy the straightforward design and the friendly atmosphere they create for everyone. A solid pick for anyone who values convenience. dk333login
The mobile app download took less than a minute and now I carry my lucky streaks everywhere. It feels like the developers really listen to what players want and keep improving the experience. Download it today and see the magic for yourself at tik999download
ZK777game is worth checking out. Found some hidden gems on there! Has a good selection and something to keep you busy. Cheers zk777game
Anyone know about QK777gameapk? I’m downloading it now, looks interesting! Let’s play together! Get it now at: qk777gameapk
Yo, anyone else tried ee11? I’m just starting out but so far so good. Seems legit and easy to navigate. Thinking of making it my regular stop! Take a peek here: ee11
Loving the live betting options here. The interface is super clean and withdrawals are always on time. Finally found a spot that actually pays out fast. betwaybetika
Finally a platform where I can grab my favorite slot games without any hassle. The wallet features make funding my account a breeze and the game library updates constantly. I always feel right at home when I log in here. slotsuperwallet
I was looking for a spot that brings that wild, festive energy we love, and I found it here. The games jump off the screen and the promotions feel like little gift cards you did not expect. It really captures the spirit of a good celebration every single day. Jump into mxcasloco and let the adventure begin.
Happy to finally find a site that prioritizes player satisfaction. The welcome package was generous and the game filters make navigation a breeze. I love how they handle disputes fairly and keep the community updated on new features. Recommend it to all my friends. myhappycuci
This platform feels like it was built with real players in mind. The interface is super clean and navigating between sections takes seconds. I tried several live tables and the dealers were professional and entertaining. Payouts arrived right on schedule and I felt completely safe throughout. phbwin
I have been hunting for a sportsbook that actually respects its players and I finally found it here. Every match I back feels fairly priced and the live updates keep me glued to the screen. My deposit cleared in seconds and I love how transparent their bonus terms really are. Just visit this page and see why regular players keep coming back. bddarazbet
What a fantastic spot for live dealer games and slots. Everything loads quickly and the graphics are top notch. I appreciate how fair the gameplay is and how transparent the terms are. Just hit a nice win last weekend. vn13wingame
Best slot experience I have had in a long time. The payouts are fair and the game variety is impressive. If you are in the PH, you definitely need to check out 588jlslot right now!
Downloading the dedicated client was straightforward and once installed it runs way smoother than the browser version. I like having everything in one place for slots and live bets and the load times are noticeably faster. Customer service responded quickly when I had a simple question about my first deposit. A trustworthy option for daily play that actually respects your time. bg6666download
What a fantastic place to unwind after a long shift. The live dealer options are top notch and the promotions match my deposit perfectly. I love how easy it is to navigate the lobby and find my favorite games without any confusion. Highly recommend it to anyone looking for a trustworthy spot. taya777onlinecasino
Lately I have been exploring different sports betting platforms and this one really stands out for me. The interface is super clean and I can place my bets on my favorite matches without any hassle. Payouts are always on time and the customer support team is very helpful whenever I need a quick question answered. If you want a smooth and reliable betting experience give it a try and let me know what you think myfly99
I used to skip betting during holidays but this platform made the experience so welcoming that I never want to miss a match again. Honest odds and quick support make every session relaxing. Visit bdluckbd
Easy access and a very user friendly interface. I never have trouble logging in, which is a huge plus for me. singawinlogin
Okay, let’s be real, 1winlogin keeps things simple. The login is quick and painless. I can always find what I’m looking for. It is a solid site. Give 1winlogin a shot 1winlogin!
Down here in Australia we always look for platforms that respect our time and money. This one delivers exactly that with transparent rules and quick payouts. The casino games are top notch and the customer service actually answers on a weekend. aucairnscasino
Heyya i aam forr the first tme here. I came across this board and I to find It
truly useful & it helped me out a lot. I hope to present something afain annd
hslp oters lke you aided me. xnxx