找回密码注册

QQ登录

只需一步,快速开始

 
 
 
 
查看: 4231|回复: 52

[量产刀] 刀和鋼材,選刀前後都需要了解的東西

[复制链接]

该用户从未签到

发表于 2008-11-6 05:39 | 显示全部楼层 |阅读模式
經過這幾天瘋狂學習,從國外刀友和刀匠之間的交談,鋼材廠商介紹,使用者心得等等中,小弟我做了一些總結,希望可以讓廣大刀友不再迷惑,科學理性的認清手中的刀。順便賺點分,如果加了精,就更開心咯,呵呵。

好,開整……

1.鋼材所扮演的角色:

鋼材是一把刀的靈魂,但他絕對不是唯一影響刀性能的因素。熱處理、刃形和研磨設計、刀柄設計和材料都會影響到刀的性能好壞,即使這些都不太容易衡量。其實一味的追求鋼材的好壞已經不符合現代的潮流了,這些年來,鋼材的差異變得越來越小,光是提高鋼材,已經空間很小了。說道提高刀的性能,提高刀的整體設計可能會比提高鋼材更有效。很多人硬是要對鋼材排列個高低等級什麽的,事實上很不容易,即使是同種鋼材,在不同熱處理的情況下都會有差異,所以,排序不是太現實。

[ 本帖最后由 anti-jilex 于 2008-11-6 17:40 编辑 ]
坩堝和日立.JPG

评分

参与人数 2参与分 +48 收起 理由
liushupu + 47 原创内容
饭太热 + 1 感谢分享创作 1 ..

查看全部评分

该用户从未签到

 楼主| 发表于 2008-11-6 05:40 | 显示全部楼层
2.鋼材要看什麽指標:

看一個鋼材,我們都要去看他的什麽指標呢?有如下一些:強度、韌性、耐磨度和保持性,當然,有時候我們也會去看它的防銹性。下面我一一說明一下這些指標。

強度:承受不形成永久形變的能力指標。鋼材的強度直接與硬度掛鉤,鋼材越硬越強壯[大家不要誤解,這不代表越硬越好]。另外,注意啦!硬度高低絕對不代表耐磨度的高低!舉個例子,硬度為56HRC的S60V比硬度為60HRC的ATS-34要耐磨很多。

韌性:經受衝擊、撞擊而不損壞的能力指標。這對刀來講很重要,在大家用刀砍東西的時候,一定會遇到急停、撞擊、扭扯等等過程,一個韌性不好的刀,即使硬度到了68HRC,砍東西也是會斷的。

耐磨度:就如字面意思,是指耐磨的程度。籠統的說,耐磨度取決于碳化物的數量、種類和分布。碳化物含量高,分布均勻,耐磨度也就高。

保持性:很多人多這項指標有很大的誤解,認為耐磨度和保持性是一回事,其實則不然。正確的說呢,保持性是上述強度、韌性和耐磨度的總和,因不同的具體用處,其中某種或者全部這些指標才會對保持性更顯重要性。簡單的說,保持性好壞因條件而異。舉幾個例子,切紙箱,韌性就顯得格外重要,因為紙板中往往會含有微晶片[其實就是雜質],這是刀子變鈍的主要原因之一;削木頭,強度就顯得重要了,因為一般削木頭時,刀子變鈍都是因為劃和擠壓。在不同的工作環境下,不同指標也就影響到了保持性。

防銹性:其實就是抗氧化能力。在一個會腐蝕的環境下,這一指標也有所幫助,比如防止海水侵蝕生銹等等。據本人了解,防銹能力與鉻的含量、化學組合等等有關,具體原因有興趣的可以私下交流。

通過這些指標的學習,大家也就稍微對鋼材有一個初步了解。很多人經常提出的例如:什麽是最好的鋼材?什麽鋼材比什麽鋼材要好...之類的,希望大家走出這樣的誤區。老外有一個選擇鋼材的理論,是這樣的:在你了解你的刀將要用來干什麽后,再對症下藥選擇鋼材。當然,你要了解所選的鋼材性質。


[ 本帖最后由 anti-jilex 于 2008-11-5 19:47 编辑 ]
cmp.JPG

评分

参与人数 1参与分 +1 收起 理由
饭太热 + 1 感谢分享创作 1 ..

查看全部评分

该用户从未签到

 楼主| 发表于 2008-11-6 05:40 | 显示全部楼层
3.鋼材:

鋼材種類型號實在是太多了,目前拿來做刀的就有N種。在國外的網站上看到 Joe Talmadge 在2002年7月寫的一篇詳細的文章。正想把他翻譯一下,轉給大家的時候,沒想到早已經有人做過了。但是這個人爲什麽硬說是自己的觀點呢?明明一字一句的完全照抄,真TM.....呵呵,好像離題了。

Joe Talmadge大致把他們分成三大類:非不銹鋼、不銹鋼和“大馬士革鋼”[爲什麽加引號,先賣個關子,呵呵,大家都應該看累了,娛樂一下],然後再逐個細分。

因為被那篇原封照搬的文章倒了胃口,沒心情寫下去了,就把部分原文貼一下好了,文法很簡單,不懂查字典,再不懂可以問我。本来我已经翻译了一半了,咳,真太TNND漏气了……
想了一想,還是少做解釋吧,免得沒人看。


[ 本帖最后由 anti-jilex 于 2008-11-5 19:48 编辑 ]
Knife steel FAQ.JPG
硬度表.JPG

评分

参与人数 1参与分 +1 收起 理由
饭太热 + 1 感谢分享创作 1 ..

查看全部评分

该用户从未签到

 楼主| 发表于 2008-11-6 05:40 | 显示全部楼层
非不锈钢:

下面這些都是非不銹鋼,包括碳鋼、高碳鋼、半不銹鋼等等。特別說一下D2,CPM 10V,CPM 3V。D2是非不銹鋼中比較防銹的[半不銹鋼],SPM 10V是坩堝公司最耐磨的鋼材之一,CPM 3V算是總和能力稍好的非不銹鋼,很多人會誤以為他們是不銹鋼,這可不對。其餘像什麽10XX系列的1095啊,冷鋼的碳V啊…………自己看吧。

Non-stainless Steels (carbon, alloy, and tool steels):
D-2:D-2 is sometimes called a "semi-stainless". It has a fairly high chrome content (12%), but not high enough to classify it as stainless. It is more stain resistant than the carbon steels mentioned above, however. It has excellent wear resistance. D-2 is much tougher than the premium stainless steels like ATS-34, but not as tough as many of the other non-stainless steels mentioned here. The combination of great wear resistance, almost-stainlessness, and good toughness make it a great choice for a number of knife styles. Bob Dozier is one maker who uses D-2. Benchmade has begun using D-2 in its Axis AFCK.

M-2:A "high-speed steel", it can hold its temper even at very high temperatures, and as such is used in industry for high-heat cutting jobs. It is slightly tougher, and is slightly more wear resistant, than D-2. However, M-2 rusts easily. Benchmade has started using M-2 in one of their AFCK 710 variations.

A-2:An excellent air-hardening tool steel, it is tougher than D-2 and M-2, with less wear resistance . As an air-hardening steel, don't expect it to be differentially tempered. Its good toughness makes it a frequent choice for combat knives. Chris Reeve and Phil Hartsfield both use A-2.

O-1:This is a steel very popular with forgers, as it has the reputation for being "forgiving". It is an excellent steel, that takes and holds an edge superbly, and is tough (although not as tough as, say, 5160). It rusts easily, however. Randall Knives uses O-1, so does Mad Dog Knives.

W-2:Reasonably tough and holds an edge well, due to its .2% vanadium content. Most files are made from W-1, which is the same as W-2 except for the vanadium content (W-1 has no vanadium).

The 10-series:1095 (and 1084, 1070, 1060, 1050, etc.) Many of the 10-series steels for cutlery, though 1095 is the most popular for knives. When you go in order from 1095-1050, you generally go from more carbon to less, from more wear resistance to less wear resistance, and tough to tougher to toughest. As such, you'll see 1060 and 1050, used often for swords. For knives, 1095 is sort of the "standard" carbon steel, not too expensive and performs well. It is reasonably tough and holds an edge well, and is easy to sharpen. It rusts easily. This is a simple steel, which contains only two alloying elements: .95% carbon and .4% manganese. The various Kabars are usually 1095 with a black coating.

Carbon V:Carbon V is a trademarked term by Cold Steel, and as such is not necessarily one particular kind of steel; rather, it describes whatever steel Cold Steel happens to be using, and there is an indication they do change steels from time to time. Carbon V performs roughly between 1095-ish and O-1-ish, in my opinion, and rusts like O-1 as well. I've heard rumors that Carbon V is O-1 (which I think is unlikely) or 1095. Numerous industry insiders insist it is 0170-6. Some spark tests done by a rec.knives reader seem to point the finger at 50100-B. Since 50100-B and 0170-6 are the same steel (see below), this is likely the current Carbon V.

0170-6 - 50100-B:These are different designations for the same steel: 0170-6 is the steel makers classification, 50100-B is the AISI designation. A good chrome-vanadium steel that is somewhat similar to O-1, but much less expensive. The now-defunct Blackjack made several knives from O170-6, and Carbon V may be 0170-6. 50100 is basically 52100 with about 1/3 the chromium of 52100, and the B in 50100-B indicates that the steel has been modified with vanadium, making this a chrome-vanadium steel.

L-6:A band saw steel that is very tough and holds an edge well, but rusts easily. It is, like O-1, a forgiving steel for the forger. If you're willing to put up with the maintenance, this may be one of the very best steels available for cutlery, especially where toughness is desired. In a poll on the knifemakers email list back in the 1990s, when asked what the makers would use for their personal knife, L-6 emerged as the top choice.

5160:A steel popular with forgers, it is popular now for a variety of knife styles, but usually bigger blades that need more toughness. It is essentially a simple spring steel with chromium added for hardenability. It has good wear resistance, but is known especially for its outstanding toughness. This steel performs well over a wide range of hardnesses, showing great toughness when hardened in the low 50s Rc for swords, and hardened up near the 60s for knives needing more edge holding.

52100:Formerly a ball-bearing steel, and as such previously only used by forgers, it's available in bar stock now. It is similar to 5160 (though it has around 1% carbon vs. 5160 ~.60%), but holds an edge better. It is less tough than 5160. It is used often for hunting knives and other knives where the user is willing to trade off a little of 5160's toughness for better wear resistance. However, with the continued improvement of 52100 heat treat, this steel is starting to show up in larger knives and showing excellent toughness. A modified 52100 is being used by Jerry Busse in his lower-cost production line, and such high-performance knife luminaries as Ed Fowler strongly favor 52100.

CPM 10V:Crucible's somewhat-stain-resistant 10V provides incredible wear resistance with D-2-class toughness. It is an outstanding choice when maximum wear resistance is desired, but not super toughness.

CPM 3V:CPM's incredibly tough 3V gives excellent wear resistance and good stain resistance as well, although when it does stain, it is said to pit rather than surface rust. When maximum toughness is desired, with very good wear resistance, 3V is a great choice.

INFI:INFI is currently only used by Jerry Busse. In place of some of the carbon (INFI contains .5% carbon), INFI has nitrogen. The result is a non-stainless steel that is nevertheless extremely stain resistant (informally reported at close to D-2, or even better), incredibly tough for a high-alloy ingot steel, and with extremely good wear resistance.

Vascowear:A very hard-to-find steel, with a high vanadium content. It is extremely difficult to work and very wear-resistant. It is out of production.

[ 本帖最后由 anti-jilex 于 2008-11-5 17:38 编辑 ]
非不锈钢.JPG

该用户从未签到

 楼主| 发表于 2008-11-6 05:41 | 显示全部楼层
不锈钢:

不銹鋼,其實就是比非不銹鋼防銹能力強,但決不表示不銹鋼就真的不銹。不銹鋼還是會銹的!不銹鋼裡面可就精彩了,裡面有稱霸80年代的440系列,特別是440C,90年代的ATS-34和70年代美國版154CM,當然少不了軸承鋼BG-42以及坩堝到處比拼的S30V等等……



Stainless Steels

420:Lower carbon content (<.5%) than the 440 series makes this steel extremely soft, and it doesn't hold an edge well. It is used often for diving knives, as it is extremely stain resistant. Also used often for very inexpensive knives. Outside salt water use, it is too soft to be a good choice for a utility knife.

420HC:420 modified with more carbon, to be roughly comparable to 440A.

440 A - 440 B - 440C:The carbon content (and hardenability) of this stainless steel goes up in order from A (.75%) to B (.9%) to C (1.2%). 440C is an excellent, high-end stainless steel, usually hardened to around 56-58 Rc, very tough and with good edge-holding at that hardness. 440C was the king of stainless cutlery steels in the 1980s, before ATS-34 took the title in the 1990s. All three resist rust well, with 440A being the most rust resistant, and 440C the least. The SOG Seal 2000 is 440A, and Randall uses 440B for their stainless knives. 440C is fairly ubiquitous, and is generally considered a very good general-use stainless, tougher and more stain resistant than ATS-34 but with less edge-holding and weaker. If your knife is marked with just "440", it is probably the less expensive 440A; if a manufacturer had used the more expensive 440C, he'd want to advertise that. The general feeling is that 440A (and similar steels, see below) is just good enough for everyday use, especially with a good heat treat (we've heard good reports on the heat treat of SOG's 440A blades, don't know who does the work for them). 440-B is a very solid performer and 440-C is excellent.

425M-12C27:Both are very similar to 440A. 425M (.5% carbon) is used by Buck knives. 12C27 (.6% carbon) is a Scandanavian steel used often in Finish puukkos and Norwegian knives. 12C27 is said to perform very well when carefully heat treated, due to its high purity. When done right, it may be a slighter better choice than 440A and its ilk.

AUS-6-AUS-8-AUS-10 (aka 6A 8A 10A):Japanese stainless steels, roughly comparable in carbon content to 440A (AUS-6, .65% carbon) and 440B (AUS-8, .75% carbon) and 440C (AUS-10, 1.1% carbon). AUS-6 is used by Al Mar, and is a competitor to low-end steels like 420J. Cold Steel's use of AUS-8 has made it pretty popular, as heat treated by CS it won't hold an edge like ATS-34, but is a bit softer (and therefore weaker) and tougher. 8A is a competitor of middle-tier steels like ATS-55 and Gin-1. AUS-10 has roughly the same carbon content as 440C but with slightly less chromium, so it should be a bit less rust resistant but perhaps a bit tougher than 440C. It competes with higher-end steels, like ATS-34 and above. All 3 steels have some vanadium added (which the 440 series lacks), which will improve wear resistance and refines the grain for both good toughness, and the ability to sharpen to a very keen edge. Many people have reported that they are able to get knives using steels that include vanadium, like 8A, sharper than they can get non-vanadium steels like ATS-34.

GIN-1 aka G-2:A steel with slightly less carbon, slightly more chromium, and much less moly than ATS-34, it used to be used often by Spyderco in their less-expensive knives. Spyderco has since switched to ATS-55 and 8A, but Benchmade is now using Gin-1 in their less-expensive knives. A very good stainless steel, with a bit less wear resistance and strength than ATS-34.

ATS-34-154-CM:ATS-34 was the hottest high-end stainless in the 1990s. 154-CM is the original American version, but for a long time was not manufactured to the high quality standards knifemakers expect, so knifemakers switched over to ATS-34. CPM is again making high-quality 154-CM, and some companies seeking to stick with American-made products (like Microtech) are using it. ATS-34 is a Hitachi product that is very, very similar to 154-CM. Normally hardened to around 60 Rc, it holds an edge very well and is tough enough even at that high hardness. Not as rust resistant as the 400 series above. Many custom makers use ATS-34, and Spyderco (in their high-end knives) and Benchmade are among the production companies that use it. Contrary to popular belief, both steels are manufactured through the Argon/Oxygen/Decarburization process (AOD), not vacuum remelted.

ATS-55:Similar to ATS-34, but with the moly removed and some other elements added. This steel is a good cutlery steel but a tier behind ATS-34 and its closest competitors (other steels in ATS-55's class might be Gin-1 and AUS-8). With the molybdenum removed, ATS-55 does not seem to hold an edge quite like ATS-34, and reports are that it's less rust-resistant. My guess is that with the moly gone, more chromium is tied up in carbides -- which means less free chromium for rust resistance, and softer chromium carbides replacing moly carbides for less wear resistance.

VG-10:Another vanadium-containing high-end stainless steel. Due to the vanadium content, VG-10 takes a killer edge, just like other vanadium steels like BG-42 and AUS-8. VG-10 is also tougher and more rust-resistant than ATS-34, and seems to hold an edge better.

BG-42:Bob Loveless announced a while back that he's switching from ATS-34 to this steel. Keep an eye out for it, it's bound to catch on, although the higher cost, limited stock-size availability, and added difficulty of manufacturing are holding BG-42's popularity back. BG-42 is somewhat similar to ATS-34, with two major differences: It has twice as much manganese as ATS-34, and has 1.2% vanadium (ATS-34 has no vanadium), so look for significantly better edge-holding than ATS-34. The addition of vanadium and the clean manufacturing process (VIM/VAR) also gives BG-42 better toughness than ATS-34. Chris Reeve has switched from ATS-34 to BG-42 in his Sebenzas.

S60V (CPM T440V) - S90V (CPM T420V):Two steels that hold an edge superbly, world class type edge holding, but it can be difficult to get the edge there in the first place. These steels are made with Crucible's particle metallurgy process, and that process allows these steels to be packed with more alloying elements than traditional steel manufacturing methods would allow. Both steels are very high in vanadium, which accounts for their incredible wear resistance. Spyderco offers at least one model in CPM S60V. Spyderco, one major user of S60V, has cut back hardness down to 55-56Rc, in order to keep toughness acceptable, but that sacrifices strength so there is a tradeoff. S90V is CPM's follow-on to 440V, and with less chromium and almost double the vanadium, is more wear-resistant and tougher than S60V -- and, in fact, is probably more wear-resistant than any other stainless steel used in the cutlery industry. As such, S90V is in the running with steels like BG-42 as among the best general-purpose stainless steels; however, S90V is even more expensive and difficult to work than BG-42, so it's strictly in the realm of custom makers currently.

CPM S30V:The newest stainless steel from Crucible, purpose-designed as a cutlery steel. This steel gives A-2-class toughness and almost-S90V class wear resistance, at reasonable hardness (~59-60 Rc). This mix of attributes is making S30V one of the hottest stainless steels going, with makes such as Chris Reeve switching from BG-42 to S30V. Will this be the new king of general-purpose stainless cutlery steels? We'll know over the next couple of years.

400 Series Stainless:Before Cold Steel switched to AUS-8, many of their stainless products were marketed as being of "400 Series Stainless". Other knife companies are beginning to use the same term. What exactly *is* 400 Series Stainless? I always imagined it was 440-A, but there's nothing to keep a company from using any 4xx steel, like 420 or 425M, and calling it 400 Series Stainless.

[ 本帖最后由 anti-jilex 于 2008-11-5 22:05 编辑 ]
SL.JPG

该用户从未签到

 楼主| 发表于 2008-11-6 05:41 | 显示全部楼层
“大马士革钢”:

現在說一下爲什麽把“大馬士革鋼”上面加引號,因為目前我們見到的這些大馬士革鋼都不是真正意義上的大馬士革鋼。真正的此種鋼已經失傳,目前沒什麽方法製造出來。而我們現在市面上新作出來的這些大馬士革其實就是花紋鋼,混合鋼。甚至把鋼纜砸扁做刀也叫“大馬士革鋼”……………

廢話不多說,就說說現在這些“大馬士革”吧。大部分這類鋼都是用多種不同鋼材,利用鍛造焊接法進行混合。我們常見大麻的刀片上有黑色條紋和亮色條文,其實就是不同鋼材,下面文中也列出哪些是產生亮條文的金屬,哪些是產生深色條文的金屬。


Damascus Steel

Damascus steels are made by forge-welding two or more different metals (usually steels). The billets are heated and welded; to get an idea of the process, see Don Fogg's URL listed in the bibliography. The Damascus is then acid-etched. The different metals etch at different rates, and depth and color contrast are revealed.

Damascus can be made with performance and/or aesthetic objectives in mind. Aesthetically, the choice of materials is important. One shiny steel and one darker steel etch out to show the most striking pattern. If the maker is going more for beauty than performance, he might even go with nickel, which is bright but does not perform as well as steel for cutlery applications. The other factor affecting beauty is of course the welding pattern. Many patterns of Damascus are available today, from random to star to ladder, and a whole lot more.

The following steels will provide bright lines:

&#8226;        L-6 and 15N20 (the Swedish version of L-6) -- nickel content
&#8226;        O-1 -- chromium content
&#8226;        ASTM 203 E -- nickel content
&#8226;        Nickel

The following steels will provide dark lines:

&#8226;        1095
&#8226;        1084
&#8226;        5160
&#8226;        52100
&#8226;        W-2

[ 本帖最后由 anti-jilex 于 2008-11-5 15:19 编辑 ]
Damascus.JPG

评分

参与人数 1参与分 +1 收起 理由
饭太热 + 1 感谢分享创作 1 ..

查看全部评分

该用户从未签到

 楼主| 发表于 2008-11-6 05:41 | 显示全部楼层
很长吧,不知道都看得怎么样了。本人是Strider的爱好者,就从这里进入接下來的话题好了。

Strider建廠至今,沿用了很多鋼材,主要有154 CM、ATS-34、BG-42、S30V. etc。很多Strider 的持有人和準持有人甚至非持有人都對哪種鋼材好比較疑惑。因此,多多少少會有各種疑問的帖子,在這裡,給大家講個小故事:

我在USN 2004年的老貼中,找到了一篇名為“Striders Steels – What’s the dif?”的帖子。這是在Strider剛剛將鋼材轉換為S30V不久的時候,刀迷們就問道,Strider的這些鋼有什麽區別呢?先是一些鐵桿Strider迷跟帖,同時正確的指出鋼材好壞看熱處,Paul Bos的熱處非常令人滿意。就在這時,Mick Strider 跟帖了:


[ 本帖最后由 anti-jilex 于 2008-11-5 15:19 编辑 ]
mick.JPG

评分

参与人数 1参与分 +26 收起 理由
ericf + 26 感谢分享

查看全部评分

该用户从未签到

 楼主| 发表于 2008-11-6 05:42 | 显示全部楼层
他說要是真的想分清楚這些鋼材的區別,唯有去找分子學家鑒定啦,在他看來,這些鋼都一樣。

這話說的讓大家更不滿意了,要是一樣,爲什麽還要換鋼材?在這種呼聲中,Mick 受不了了,繼續回帖:

再簡單介紹了ATS-34和BG-42之後,他認為S30V是一種很好的鋼材,他自己很喜歡。他說S30V是第一個為做刀生產的鋼,結構均勻,與BG-42不相上下,另外還可以省錢。像D2,A2之類的鋼材也就一筆帶過了。最後,Mick和大家打了一個賭,他說,他要在當年刀展之前做出五把一樣的刀,而用五種不同的鋼材,如果有人能分辨出哪個是哪個,Mick就把他的車送給這個人。如果分不出來,就反輸Mick 500美金。呵呵,挺有意思的。


[ 本帖最后由 anti-jilex 于 2008-11-5 15:20 编辑 ]
mick2.JPG

该用户从未签到

 楼主| 发表于 2008-11-6 05:46 | 显示全部楼层
好啦,就說道這裡吧,也不知道有什麽可以總結的,就祝愿各位選刀前,稍微注意一下咯!

[ 本帖最后由 anti-jilex 于 2008-11-5 15:20 编辑 ]
mick and dwyer.jpg
  • TA的每日心情
    开心
    2017-9-20 19:17
  • 签到天数: 5 天

    [LV.2]偶尔看看I

    发表于 2008-11-6 06:36 | 显示全部楼层
    这个帖子好,受教了,嗯,真是很不错的扫盲帖
    呵呵,有射精的潜力啊

    该用户从未签到

    发表于 2008-11-6 08:05 | 显示全部楼层
    顶!
  • TA的每日心情
    无聊
    2013-6-27 13:06
  • 签到天数: 1 天

    [LV.1]初来乍到

    发表于 2008-11-6 08:08 | 显示全部楼层
    温故知新,以前以为明白了,每次看发现还是一支半解,谢谢楼主

    该用户从未签到

    发表于 2008-11-6 08:08 | 显示全部楼层
    提示: 作者被禁止或删除 内容自动屏蔽

    该用户从未签到

     楼主| 发表于 2008-11-6 08:16 | 显示全部楼层

    http://www.cnsohot.com.cn/

    原帖由 弗拉猛哥 于 2008-11-5 17:08 发表
    这个好贴   要好好收藏学习

    并且   楼主起得真早


    我快要睡覺去了。呵呵。
  • TA的每日心情
    开心
    2013-6-27 11:19
  • 签到天数: 1 天

    [LV.1]初来乍到

    发表于 2008-11-6 08:29 | 显示全部楼层
    原帖由 anti-jilex 于 2008-11-6 05:40 发表
    非不锈钢: D2是非不銹鋼中比較防銹的 ...

    首先不銹鋼這個翻譯名詞,不是很正確的,原文是stainless,比較不容易生鏽的意思,而非完全不會生鏽。不過沿用至今,就將錯就錯吧!
    一般的不銹鋼是以含鉻(Cr)量來定義的,12%以上就稱為不銹鋼,因為鉻的含量足夠到均勻分佈在鋼材表面,形成一個保護膜,來防止內部鋼材的氧化。
    D2的鉻含量恰好是12%,不上也不下,所以通常叫作"半不銹鋼",兼具不銹鋼與碳鋼的性能。

    [ 本帖最后由 chungming 于 2008-11-6 08:31 编辑 ]

    该用户从未签到

     楼主| 发表于 2008-11-6 08:36 | 显示全部楼层
    原帖由 chungming 于 2008-11-5 17:29 发表

    首先不銹鋼這個翻譯名詞,不是很正確的,原文是stainless,比較不容易生鏽的意思,而非完全不會生鏽。不過沿用至今,就將錯就錯吧!
    一般的不銹鋼是以含鉻(Cr)量來定義的,12%以上就稱為不銹鋼,因為鉻的含 ...


    系啊乃哦~

    難道我貼的文中不是這么說的嗎?

    “D-2 is sometimes called a "semi-stainless". It has a fairly high chrome content (12%), but not high enough to classify it as stainless. It is more stain resistant than the carbon steels mentioned above, however. It has excellent wear resistance.... "

    [ 本帖最后由 anti-jilex 于 2008-11-5 19:34 编辑 ]

    该用户从未签到

    发表于 2008-11-6 08:51 | 显示全部楼层

    http://www.ahehome.cn/

    学习了。

    该用户从未签到

    发表于 2008-11-6 09:35 | 显示全部楼层
    到了一定境界,钢就不重要了。

    和武功是一个道理。
  • TA的每日心情
    开心
    2017-12-21 17:59
  • 签到天数: 2 天

    [LV.1]初来乍到

    发表于 2008-11-6 10:18 | 显示全部楼层

    http://www.365soso.cn/

    不错不错.听君一席话胜读十年书.大清早就又长知识了

    该用户从未签到

    发表于 2008-11-6 10:23 | 显示全部楼层
    知识帖!
    您需要登录后才可以回帖 登录 | 注册

    本版积分规则

       
    快速回复 返回顶部 返回列表