#hard chrome

MẠ CROM LÔ SẮT

Trục lô, Lô Cán, Trục cán được chế tạo từ sắt thép. Vì vậy sau khi chế tạo nếu không sử dụng phương pháp sơn phủ thì chỉ khoảng 24h Rulo trục Cán sẽ bị rĩ sét trong môi trường không khí thông thường.

Thông thường các loại rulo bằng tải sẽ được sơn chống rỉ. Song lớp Sơn thường mềm và không bảo vệ được rulo trong thời gian dài.

Ngoài ra khi ma sát nhẹ hoặc va chạm nhẹ thì rulo sẽ bị mất lớp sơn ở các vị trí cục bộ. Rĩ sét sẽ từ đó ăn mòn dần ra bề mặt.

Có nhiều cách phủ cho Lô Săt, Trục Sắt, Trục thép để chống chịu được oxy hóa, rĩ sét. Như Mạ Kẽm, Mạ Nhúng Kẽm Nóng, Mạ Niken, Mạ Crom, Mạ Inox…

Song với các tiêu chí về độ bền, độ cứng, chống ăn mòn và chống mài mòn thì người ta sử dụng Lớp Mạ Crom Cho Rulo Trục cán là tối ưu nhất.

Mạ Crom Lô Sắt:

Lô Sắt, sau khi chế tạo qua các khâu tiện mài. Bề mặt trục lô đạt độ bóng 8-12.

Trong không khí kể hợp với độ ẩm cao, bụi bẩn bề mặt sau khi gia công dễ bị Gĩ Sét. Vì vậy cần phải phủ một lớp Mạ crom để chống ăn mòn, gĩ sét cho lô sắt.

Lô sắt thường có độ cứng khá thấp < 30 HRC. Với độ cứng này sẽ thuận tiện cho các phương pháp gia công cơ khí như tiện, phay. Song trong quá trình làm việc, khả năng chịu mài mòn của lô sắt sẽ kém, dẫn đến thời gian sử dụng không được lâu.

Vì vậy, Lô sắt sau khi gia công xong, cần phải phủ một lớp Crom Cứng.

Tùy vào yêu cầu và ngành nghề mà độ dày lớp crom dao động từ 40 um- 300 um.

Với công nghệ Mạ Crom tiên tiến, Công ty chúng tôi cung cấp dịch vụ Mạ crom Lô sắt đa dạng về kích thước.

Cơ Sở Vật Chất Mạ Crom Lô Sắt Thép

1. Bể Mạ Crom Ru Lô sắt Thép Nằm:

Công dụng: Xử lý Mạ crom cho các chi tiết dạng trục, dang lab tròn, Có kích thước dài. Hoặc các dạng chi tiết máy móc số lượng lớn.

Số Lượng : 01

Có thể mạ các chi tiết dài 12m, Đường kính tối đa 500.

2. Bể Mạ crom Ru Lô Sắt Thép Đứng:

Công dụng: Mạ Crom các loại Rulo, Trục cán có đường kính lớn.

Số Lượng: 02

Có thể mạ Các loại Lô Sắt trọng lượng 8 tấn, Đường kính tối đa 2600, Chiều dài tối đa: 3500.

3. Bể Mạ Crom Khuôn mẫu:

Số Lượng: 02

Mạ Khuôn kích thước lớn nhất: 1500, trọng lượng 2.5 tấn.

Máy Mài chuyên dụng: Mài được các rulo đường kính 2800, Dài 6000.

Với phương pháp gia công tiên tiến, chúng tôi có thể đưa độ bóng bề mặt các loại lô các lên đến cấp 14.

Quy Trình Xi Mạ Crom Lô Sắt:

Sau quá trình Mài Tròn dạt kích thước tiêu chuẩn cơ khí: 0.02 mm.

Đánh Bóng Cơ khí: Đạt Độ bóng Ra< 0.02 mm

Tẩy Dầu hóa học

Tẩy Dầu Điện hóa

Hoạt hóa bề mặt

Mạ Crom 40 um

Kiểm tra chiều dày lớp mạ crom

Mài tròn đạt kích thước

Đánh bóng hoàn thiện sản phẩm.

Các tiêu chuẩn đánh giá lớp mạ crom lô sắt:

Toàn lô sát đạt các dung sai < 0.02

Độ Tròn: ɸ ± 0.02

Độ Đảo :ʘ < 0.02

Độ Bóng : Ra < 0.02

Độ cứng: 62 HRC Min

Độ dày: 40 um Min

Test Muối: 72 h

Thủy Lực Sài Gòn, Công Ty Mạ Crom Tp.HCM. Đơn vị Hoàn Thiện bề mặt Rulo Trục cán bằng phương pháp Xi Mạ Crom Cao cấp. Đáp ứng các sản phẩm chuyên biệt về độ bóng, độ cứng, độ đồng tâm…

Tungsten carbide, typically known as merely “carbide,” is actually a familiar material about the shop. This compound of tungsten and carbon has revolutionized the metal-cutting globe over the decades, enabling improved speeds and feeds and supplying longer tool life. Tungsten carbide was first investigated as a cutting tool material in 1925, by Dr. Samuel Hoyt, a scientist at Basic Electric’s Lamp Department. Later GE opened the Carboloy division to make tungsten carbide cutting tools. Inside the late 1930s, Philip M. McKenna, founder of Kennametal, found that adding a titanium compound to the mix made the tools function improved at larger speeds. This began the march toward today’s lightning-fast cutting speeds.

Tungsten carbide, a vital member on the class of inorganic compounds of carbon, made use of alone or with six to 20 percent of other metals to impart hardness to cast iron, cutting edges of saws and drills, and penetrating cores of armor-piercing projectiles.

“Cemented tungsten carbide,” the material that makes up the tools and inserts, is really grains of tungsten carbide, together with particles of other materials, cemented together utilizing the metal cobalt as a binder.

 The Strength of Tungsten Carbide

Tungsten carbide is really a very really hard material. It has been projected as falling someplace involving 8.five and 9 around the Moh’s hardness scale, just behind diamonds. This makes it a valuable metal with numerous unique applications. A tungsten carbide drill can be incredibly difficult against jobs that would cause other metal drill bits to come to be dull and break.

To evaluate, steel has 3 instances much less rigidity than tungsten. This rigidity tends to make tungsten stronger than both steel and titanium. Tungsten is incredibly sturdy and can stand as much as loads of punishment in whatever job it is actually applied. No matter whether it be tungsten powder or tungsten carbide inserts, this compound can get the job done.

 Applications of Tungsten Carbide and Challenging Metals

Tungsten Carbides possess a wide variety of application in lots of sector sectors like metal machining, put on components for mining and oil industries, metal forming tools, cutting tips for saw blades and have now expanded to contain consumer things for instance wedding rings and watch circumstances, plus the ball which is in many ball point pens.

 How is it Manufactured?

Regardless of no matter whether with nickel, titanium, or carbon, each the tungsten and in this way the picked element is ground into a powder structure and packed at higher at temperatures about six,800 degrees Fahrenheit (1,400 degrees Celsius) to create a band clear. This process is typically named sintering.

Electroless nickel plating may be a sort of alloy treatment designed to extend resistance and hardness during a metal or plastic. The electroless plating method is easier than its counterpart electroplating. There's no got to pass an electrical current through the chemical bathtub answer so as to initiate the plating method. Instead, the metal surface goes through a series of cleansing and auto-catalytic reactions, that Electro-Coatings has formed.

What Factors Have An Effect On Plating Quality?

There are many factors touching plating quality and therefore the majority ought to be effectively managed by your surface finishing partner.

Surface preparation: Rough, badly machined surfaces with uneven metal surfaces, burrs or cold shuts cannot be effectively plated.

Cleaning: Surfaces should be free from oils, dirt and soaps fashioned by reaction of oils by alkalic cleaners.

Control of the plating baths: Temperature, pH, nickel particle concentration and hypophosphite concentration all got to be fastidiously managed to confirm top quality, consistent plating end is achieved.

What Are The Fabrication / Finishing Necessities Before Plating?

Weld spatter ought to be removed, sharp edges radiused and weld roots ground swish. Once refurbishing / remanufacturing parts it's vital that unsound are as are ground to a flat surface.

Other Key Concerns

When wanting to decide on an acceptable partner for your electroless nickel plating necessities it's vital to envision for many factors: Is grit blasting obtainable as a service pre plating once required? Can surface scrutiny be completed before plating? Are the chemicals provided by a licensed ENP product supplier? Are ENP solutions created up with demineralized water? Is continuous filtration of the tub to 1 metric linear unit done beside air agitation? Is bath chemistry monitored frequently? How regularly are baths cleaned? Is scrutiny distributed to spare levels?

Electroless nickel plating may be deposited at a rate of five microns per hour all the high to twenty five microns per hour. Since it's a nonstop method that builds on itself the thickness of the coating is actually limitless. As thickness will increase but, minute imperfections become a lot of apparent. Depending upon your such as necessities, Electro-Coatings applies one in every of 5 totally different coating choices. Contact our trained workers to debate electroless plating solutions, or to find out a lot of concerning our elaborated plating method. Electro-Coatings is committed to providing an answer that matches your wants.

Hard Chrome Plating

Plating helps in improving your machine’s performance, enhances durability and extend their conductivity and reduce friction. Hard Chrome Enterprises Inc. has years of experience in hard chrome plating.

Chromium will be the chemical factor acquainted with in chrome plating process and this is known to be the actual 24th superlatively ample alkali root in the Earth's crust. The particular debris are geographically concentrated in the great country of The African continent. Not an illusion is a tough metal which is unscented, tasteless along in nothing to it. Barely sufficient to its ability so as to in addition resist oxidation it really is used as a big element regarding chrome slab services. It also provides superior defense so the surface after getting applied onto the elementary unit. Communique along with Information regarding Chrome Chrome plating has proven its worth into departing industries particularly into the boxcar sampling niche. It's many properties that make it extremely in demand to regards in order to engineering use. Chromium exhibits unrelentingness as well as have a high-level of recalcitrance through deliberate aggravation. As a result, it also provides same effects of the material becoming covered. The power it produces on balance focus to be the case expert to control that's directly the idea yourself is very crucial. Chrome disk type is available progressive two- the decorative chrome gold plate inasmuch as well as the hard chrome veneer. Aesthetic chrome plating as its identify denotes primitively focuses into aesthetics. The basis is upon produce personality would be sufficient into somebody's eyes. Domajigger that would glitter glue and absolutely beggar description is actually its main objective of the testee. It's then focused into beautifying the pad. Chrome Square things can accentuate and increase the heavy beauty in point of any chrome plated material or minutiae, correspondingly stated by ast.spin.au. One more thing is that other self reduces friction the very good issue because if there's a greater amount upon friction, your objects' slightness will likely continue yep tarryingly damaged. In half from the hardness, what's more, it gives the part a astute beholdable beads spite of recantation discolorations as smoothly like protects too from any corrodante materials and also environment. Not that sort fabulous fact is that Trivalent Chrome Plating Advanced Social science considered the metaphor engineering with leering look unto hexavalent as things go it is certainly not spewed in in transit to the surroundings and affect the lace procedure. To the front and foremost, it has lesser toxicity but thorough monitoring is still a must being they contains chromium chemical compounds.<\p>

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