Hunan Jia Shan Hardware Tech Co., Ltd.
admin@jshardwaretech.com
86-0731 -82919092
جزئیات محصول
محل منبع: چین
نام تجاری: JIA SHAN
گواهی: ISO 9001
شماره مدل: سفارشی
شرایط پرداخت و ارسال
مقدار حداقل تعداد سفارش: 10
قیمت: 0.01-11
جزئیات بسته بندی: کیسه پلاستیکی + کارتن نئوپان + پالت پالت تخته سه لا با کمربند و فیلم پلاستیکی / مطابق با نیاز شما
زمان تحویل: 5-15 روز
شرایط پرداخت: L/C، D/A، D/P، T/T، Western Union، MoneyGram
قابلیت ارائه: 100000
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مقدار بسته:
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100 عدد
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رنگ:
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سفارشی / نقره ای / ساده
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مواد:
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فولاد کربن
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ارتفاع رشته:
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سفارشی
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مقاومت در برابر خوردگی:
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بالا / سفارشی
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نوع سر:
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پیچ فلزی شست
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بندر:
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شنژن، گوانگژو
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استفاده های رایج:
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ساخت و ساز، خودرو، ماشین آلات
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پایان:
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نیکل اندود
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نوع موضوع:
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نخ ماشینکاری شده
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اثبات زنگ زدگی:
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بله
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تولید کننده:
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تولید کنندگان مختلف
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مقدار بسته:
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100 عدد
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رنگ:
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سفارشی / نقره ای / ساده
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مواد:
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فولاد کربن
|
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ارتفاع رشته:
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سفارشی
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مقاومت در برابر خوردگی:
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بالا / سفارشی
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|
نوع سر:
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پیچ فلزی شست
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بندر:
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شنژن، گوانگژو
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استفاده های رایج:
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ساخت و ساز، خودرو، ماشین آلات
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پایان:
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نیکل اندود
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نوع موضوع:
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نخ ماشینکاری شده
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اثبات زنگ زدگی:
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بله
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تولید کننده:
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تولید کنندگان مختلف
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303 SS M5 Thumb Metal Screw Electronics Manufacturing Nickel Plated Circuit Board
1,Description:
2,Applications:
Principles of Hot-Dip Galvanizing
Fundamental Process
Hot-dip galvanizing involves immersing clean steel components into a bath of molten zinc at temperatures typically ranging from 435°C to 465°C. This creates a metallurgical bond between zinc and steel through a series of iron-zinc alloy layers, resulting in a durable protective coating that is integral to the substrate rather than merely surface-adhered.
Metallurgical Bond Formation
Upon immersion, molten zinc reacts with the iron in steel to form distinct alloy layers. The intermetallic compounds—gamma, delta, and zeta layers—grow at the interface through diffusion, creating a gradient from nearly pure steel at the base to nearly pure zinc at the surface. This metallurgical bonding ensures superior adhesion compared to electroplated coatings.
Surface Preparation Requirements
Effective galvanizing demands thorough surface preparation. Steel must be degreased to remove oils, pickled in acid to eliminate mill scale and rust, and fluxed to prevent oxidation before zinc immersion. Proper pretreatment ensures complete wetting by molten zinc and uniform coating formation.
3,Technical Advantages
Characteristics and Advantages of Nickel Plating
Superior Corrosion and Wear Resistance
Nickel plating provides excellent protection against corrosion, oxidation, and wear. It forms a hard, durable surface that withstands harsh environments, making it ideal for marine, chemical, and industrial applications where long-term durability is essential.
High Hardness and Abrasion Resistance
Electroless nickel deposits can achieve hardness values of 500-700 HV, comparable to hardened steel. Heat treatment can further increase hardness to 1000 HV, providing exceptional resistance to scratching, galling, and abrasive wear.
Uniform Coating Distribution
Electroless nickel plating offers outstanding throwing power, depositing uniform thickness even on complex geometries, internal surfaces, and threaded parts. Unlike electrolytic processes, it does not suffer from edge buildup or thin coverage in recesses.
Excellent Dimensional Control
The precise, uniform deposition allows for tight dimensional tolerances, often eliminating the need for post-plate machining. This makes nickel plating valuable for restoring worn components to original specifications.
Superior Lubricity and Low Friction
Nickel-phosphorus alloys provide low friction coefficients and excellent anti-galling properties. This reduces friction in moving parts and prevents seizing between mating surfaces under load.
Available in small packing, carton packing, or pallet configurations to meet your shipping and storage requirements.
Manufactured by JIA SHAN Hardware Company with strict quality control measures and pre-shipment inspection.
ویدیو
