首頁 » VTD PVD Laser Arc 雷射鑽石鍍膜設備
2013/10/21

Laser Arc 雷射鑽石膜 ta-C 可以沈積厚硬質塗層 > 20 μm

典型的PVD硬塗層,如反硝化,氧化物和碳沈積的物理氣相沉積(PVD),通常是在塗層厚度達10微米以內的沉積。然而,對於特殊應用,硬質塗層在Dickenbe範圍>20微米是相當不簡單的。例如,有些特殊的機器零配件或特殊用途工具,使用壽命跟效能需要可以顯著的提升。這時候需要一個更強的膜層厚度跟膜層的特殊結構性以達到目的。

 

在物理氣相沉積 (PVD) 工藝中產生厚層的要點是要有效增長的膜層, 但是不累積殘疾膜層存在的缺陷(例如,顆粒在電弧塗層,它被設置在塗覆流程的工藝中)。還有一點就是不要去影響膜層結構的融入。

 

這種解決方案的起點是,若膜層是用不同的材料覆蓋,在微觀結構中的缺陷的增長讓未中斷生長缺陷的想法。因此,多層結構為Defektunterdrückung是特別有用的。多層不同的研究顯示了,你想要什麼結構,存在中的缺陷,並停止生長,實現了後續的流平性和同質化的多層結構(圖1)。通過最小化的各個層的厚度下降到納米尺度(納米層)的層結構(圖2)是另一種可能的均勻化。

 

(圖1)CrN/TiN的多層結構


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2013/10/09

Diamor® coated sliding components in oil free environments



Diamor® coated gears for dry running gearboxes (Company Harmonic Drive AG) © Fraunhofer IWS Dresden
 

There are many applications of wear surfaces that do not allow the presence of lubricants for function, hygienic or other reasons. Here low friction wear protective coatings offer a serious alternative. Low friction and nonstick properties are paramount. Carbon based coatings are predestined for such applications. The hardest of DLC coatings, ta-C, presents the best solution.

 

The performance of various DLC coatings was compared within the EU project “Oil-free powertrain”. The superior performance of Diamor® coatings for such applications was clearly demonstrated. An industrial application was tested that involved the non-lubricated running of a drilling head gearbox. A lifetime of 5 x 107 load cycles was achieved.


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2013/10/08

ta-C Diamor® Coating on Cutting tools and knives

Diamor® coatings prove advantageous on cutting tools when processing very abrasive materials (e.g. graphite) and materials with a high tendency to stick to the tool surface (e.g. aluminum). Coated tools allow higher processing speeds, longer uptime and better cutting quality.

 


Diamor® coated end mills for machining aluminum © Fraunhofer IWS Dresden


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2013/10/08

ta-C Diamor® 鑽石塗層的應用

IWS開發 ®Diamor 雷射鑽石PVD氧化膜層是由從四面體非晶碳(非晶碳)。這種塗層非常耐磨,而且具非常低摩擦性能。它們非常適合作為超耐磨塗層工具,如零部件潤滑的需求和無潤滑的工作條件。 


ta-C Diamor®塗層外表面的油泵轉子 ©德累斯頓的Fraunhofer IWS
 

利豐行事業有限公司 www.li-fung.biz

 

歡迎來到利豐行的世界,首先恭喜您來到這接受新的資訊讓產業更有競爭力,我們是提供精密表面處理的代理商,應對廠商高品質的表面處理需求,我們可以協助廠商滿足您對產業的不同要求,我們有能力達到非常卓越的表面處理品質,這是現有相關技術無法比擬的,表面處理技術皆集中於去毛邊, 去毛刺, 導角, 精密研磨,拋光, VTD PVD工具鍍膜, 光學鍍膜 optical coating, 金屬濺鍍 metallization,absolute chemie 精密CVD/PVD退鍍工藝和 EMAG Precision Electrochemical Machining 精密電化學加工技術 (ECM / PECM) 取代放電加工), EMAG 硬車削/乾式車削 hard turning, Koepfer 滾齒(齒輪加工製造) 技術, Reinecker, KARSTENS 內外圓研磨外圓+內圓曲面磨削, Naxos-Union曲柄軸研磨, 凸輪軸, KOPP非圓研磨, SW中心加工機, EMAG 雷射焊接, 自動化設備.。我們成功的滿足了各行各業的要求,包括:精密需求高的軸承盒、射出成型的模具、高壓空氣閥、航太零配件、超高硬度的切削刀具、醫療配件及汽車用精密五金等等。我們的產品涵蓋了從桌上型到工業級的生產設備;從微細零配件到大型五金配件;從小型生產到大型量產;從半自動到全自動整合;我們的技術可提供您連續生產的效能,我們整體的服務及卓越的技術,恭迎您親自體驗.


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2013/09/30

TA-C塗層製作的基礎知識

類金剛石碳塗層(DLC)通常是與類金剛石碳原子聚合的一個顯著部分的碳塗層。除了類金剛石結合的碳(sp3 hybridized bonds)的其餘部分的碳原子鍵合主要是類石墨(sp2 hybridized. sp3/sp2 聚合鍵的氫含量在塗層中的比例是很重要的屬性。某些DLC塗層中產生的烴類氣體,從而總是包含一定量的氫氣。據Jacob/Moeller/Robertson大多數DLC塗層類型,可區分使用某種類型的相圖。





由於它們的合成過程中的性質,從固體石墨,非晶碳塗層不含有顯著量的氫。TA-C塗層的SP 3分數範圍從50%到90%取決於製造條件。因此,TA-C塗層是最接近的DLC塗層接近晶金剛石的屬性。
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2013/09/26

Filter-Laser-Arc Technology


Vacuum arc evaporation inherently emits droplets or particles. Using pulsed discharge currents (such as implemented with the Laser-ArcTM technology) reduces this effect but cannot completely suppress it. This results in particle induced growth defects and large coating roughness, which are not acceptable for some applications. Thus IWS engineers developed technologies to filter the carbon plasmas and separate out most droplets and particles. Plasma filtering enables the deposition of ta-C coating with significantly reduced defect densities. These coatings can be used without additional lapping steps even for demanding applications.


A plasma filter was developed especially for the Laser-ArcTM technology and the coating module LAM 500. The filter replaces the adapter flange, which usually connects the source chamber to the coating machine. In filtered operation the technology deposits smooth ta-C coatings of low defect densities, which significantly outperform unfiltered coatings. The deposition rate is reduced by about 40% compared to unfiltered deposition.

VTD為德國真空鍍膜技術的佼佼者,其前身為東德的研究機構,技術開發人員就有二千多位,近來更是提供歐盟在太空貓頭鷹計畫中領先的真空光學鍍膜技術,而畫下鍍膜技術新世紀的里程碑,相信其在真空鍍膜的領域上,能為您帶來更有效益的生產方式及品質。




Schematic view of the LAM 500 plasma source for generating carbon plasmas with particle filter  © Fraunhofer IWS Dresden
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2013/09/25

ta-C 雷射鑽石膜 Diamor® 在凸輪軸的實例

Diamor® coated exterior surface of an outer oil pump rotor © Fraunhofer IWS Dresden Read more: http://www.li-fung.biz/VTD_NEWS7.html

VTD為德國真空鍍膜技術的佼佼者,其前身為東德的研究機構,技術開發人員就有二千多位,近來更是提供歐盟在太空貓頭鷹計畫中領先的真空光學鍍膜技術,而畫下鍍膜技術新世紀的里程碑,相信其在真空鍍膜的領域上,能為您帶來更有效益的生產方式及品質。


 
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2013/07/11

PVD Arc 沈積所產生的微粒droplet現象去除

模具通常使用PVD Arc System (物理氣相沉積, 電弧式系統) 作為延長工具壽命和提升硬度。但也會產生模具表面微孔現象及靶材微粒(droplets)覆著。經由特殊拋光製程可以去除微粒和微孔拋光, 使得在模具使用時可以增加冷却液及潤滑油的覆著進而增加壽命。此種提昇的效果也有以在切削刀具上見到。

實例:
Roughness measurements before and after processing in a drag finishing machine
Example 1: deep drawing die

Before:                           
before removal
 

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2012/08/28

微火花塗覆技術:「自我再生」不銹鋼刀刃


不銹鋼×MSC
航空航太領域的金屬部件通常都使用焊接、噴鍍(將材料高溫熔化後向金屬噴塗)、電鍍等塗裝工藝。但是,在焊接時,目標以外的位置也會熔化,無法保持原本的形狀。而噴鍍和電鍍容易剝落,如果不做好遮罩,還會沾染其他地方。而MSC的放電極其微小,對周圍的影響小,而且是與基材熔化混合在一起形成塗層,所以不易產生上述問題。加工全部可以實現自動化,無需熟練的技術人員,能大幅削減成本。

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2012/01/10

刀具鍍層-超硬薄膜被覆材

超硬薄膜被覆:

硬質合金表面以TiC,TiN,TiCN,Al2O3…等硬質陶瓷被覆數μm者,可以比WC系超硬合金更高的速度使用,也可比陶瓷更高的進刀量切削。其被覆方式有CVD法(化學蒸著法)及PVD法(物理蒸著法)。

被覆方式:

 

被覆法 CVD法(化學蒸著法) PVD法(物裡蒸著法)
介紹 利用氣體化學反應,以約1000°C左右的溫度被覆。 將被覆層的主要成分金屬蒸發離子化,與氣體反應而在負極處理的母材(約500°C左右)被覆TiN等方法。
優點 1.母材可以全面均一被覆。                    2.由於處理溫度,所以被覆層和母材的密著強度高。
3.相異的被覆層可以很容易的僅以氣體切換
4.由於可以以大量地被覆處理,所以處理成本低。
1.處理溫度低,所以幾乎沒有熱變形
2.被覆粒子微細瑣已可已在銳利的刀尖直接被覆。
3.在被覆層壓縮應力作用,所以有利強度。
4.安全且無公害所已無需排氣處理設備
缺點 1.在接近母材表面易生成脫碳等變質層。
2.由於處理溫度高所以容易起尺寸變化及變形。
3.在被覆層容易產生聲熱應力,由於母材的種類伴隨著拉應力在表面發生龜裂。
4.由於生成HCl等,所以必須排氣處理。
1.母材與被覆層密著性小,所以於不適用大剪斷力作用處及要求大耐磨耗性之處。
2.迴轉不易所以必須賦與母材迴轉機構,對孔內部均一被覆也不易。
3.母材附加電壓的場合多,所以需要保持試料及裝配裕鍍,處理能力受限,很輕易地提高成本。

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2011/10/13

VTD: 比類鑽膜 DLC更硬, 更優越的SUPER HARD CARBON FILMS – DIAMOR®

VTD: 比類鑽膜 DLC更硬, 更優越的SUPER HARD CARBON FILMS – DIAMOR®

http://www.li-fung.biz/VTD_NEWS7.html

VTD為德國真空鍍膜技術的佼佼者,其前身為東德的研究機構,技術開發人員就有二千多位,近來更是提供歐盟在太空貓頭鷹計畫中領先的真空光學鍍膜技術,而畫下鍍膜技術新世紀的里程碑,相信其在真空鍍膜的領域上,能為您帶來更有效益的生產方式及品質。



VTD Vakuumtechnik Dresden GmbH and Fraunhofer IWS Dresden are pleased to announce a new development: the DREVA 600-LAM PVD hard material coating plant.

An innovative system for depositing a new generation of DLC coatings on tools and components.
Jointly developed by Fraunhofer IWS Dresden and VTD Vakuumtechnik Dresden GmbH.

Diamor® carbon coating: ultra-hard, amorphous, free from hydrogen (Diamor® is the Trade name of Fraunhofer)

The new laser-arc module - the DREVA 600-LAM's key technological component - enables this Diamor® coating free from hydrogen.
With its new plant, VTD GmbH from Dresden consistently carries on the modular design of the DREVA series which is based on technological flexibility.
Six docking stations from the DREVA 600's basic system enable short-term conversions to and from arc coating or sputtering processes and combinations thereof as well as the integration of the laser arc module. This provides flexibility for an ideal coating in each individual application.

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2011/02/24

Smooth nanostructured ultrahard carbon coatings

Fraunhofer Institute for Material and Beam Technology (IWS)

Dr. Andreas Leson
Fraunhofer IWS Dresden Department PVD- and Nanotechnology

 

Smooth nanostructured ultrahard carbon coatings for friction reduction and improved energy efficiency

 


Coatings with a low friction coefficient are becoming more and more important since they are a valuable tool for the improvement of energy efficiency. Among them especially very hard carbon coatings ? commonly known as diamond like coatings (DLC) ? have attracted a lot of interest due to their unique properties. Often a plasma enhanced CVD process (PECVD) is used for the deposition of DLC resulting in a considerable amount of hydrogen content. We have developed a different deposition process which is based on a pulsed arc controlled by a laser (laser arco). The resulting coatings are free of hydrogen and show superior properties as compared to conventional DLC coatings. E. g. the hardness typically is even higher by a factor up to three and the coefficient of friction can be considerably reduced further. Especially the friction reduction has become important since it improves the energy efficiency of automobiles. These coatings ? known as ta-C or diamor coatings ? have an extremely wide range of applications in the automotive industry, the equipment manufacturer industry and all other branches where wear and friction is a concern. The laser arco process has been further developed with respect to industrial needs during the last years and is now highly productive and thus well suited for mass production especially due a new filtering option in order to produce smooth films. The talk will give an overview on amorphous carbon coatings with a special focus on ta-C coatings and their friction behaviour.


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2011/02/12

Diamond-like carbon (DLC 類鑽膜) vs. ta-C

Diamond-like carbon (DLC) exists in seven different forms[1] of amorphous carbon materials that display some of the unique properties of diamond. They are usually applied as coatings to other materials that could benefit from some of those properties. All seven contain significant amounts of sp3 hybridizedcarbon atoms. The reason that there are different types is that even diamond can be found in two crystalline polytypes. The usual one has its carbon atoms arranged in a cubic lattice, while the very rare one (lonsdaleite) has a hexagonal lattice. By mixing these polytypes in various ways at the nanoscale level of structure, DLC coatings can be made that at the same time are amorphous, flexible, and yet purely sp3 bonded "diamond". The hardest, strongest, and slickest is such a mixture, known as tetrahedral amorphous carbon, or ta-C. For example, a coating of only 2 μm thickness of ta-C increases the resistance of common (i.e. type 304) stainless steel against abrasive wear; changing its lifetime in such service from one week to 85 years. Such ta-C can be considered to be the "pure" form of DLC, since it consists only of sp3 bonded carbon atoms. Fillers such as hydrogen, graphitic sp2 carbon, and metals are used in the other 6 forms to reduce production expenses or to impart other desirable properties.[2][3] The various forms of DLC can be applied to almost any material that is compatible with a vacuum environment. In 2006, the market for outsourced DLC coatings was estimated as about 30,000,000 € in theEuropean Union.



http://www.li-fung.biz/VTD_NEWS7.html

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2011/02/09

VTD: 比類鑽膜 DLC更硬, 更優越的SUPER HARD CARBON FILMS – DIAMOR®

http://www.li-fung.biz/VTD_NEWS7.html 

 

VTD為德國真空鍍膜技術的佼佼者,其前身為東德的研究機構,技術開發人員就有二千多位,近來更是提供歐盟在太空貓頭鷹計畫中領先的真空光學鍍膜技術,而畫下鍍膜技術新世紀的里程碑,相信其在真空鍍膜的領域上,能為您帶來更有效益的生產方式及品質。

 


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