Hunan Jia Shan Hardware Tech Co., Ltd.
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পণ্যের বিবরণ
উৎপত্তি স্থল: চীন
পরিচিতিমুলক নাম: JIA SHAN
সাক্ষ্যদান: ISO 9001
মডেল নম্বার: কাস্টমাইজড
পেমেন্ট ও শিপিংয়ের শর্তাবলী
ন্যূনতম চাহিদার পরিমাণ: 10
মূল্য: 0.01-11
প্যাকেজিং বিবরণ: প্লাস্টিকের ব্যাগ + চিপবোর্ড শক্ত কাগজ + বেল্ট এবং প্লাস্টিক ফিল্ম সহ প্লাইউড প্যালেট প্যালেট / আপনা
ডেলিভারি সময়: 5-15 দিন
পরিশোধের শর্ত: L/C, D/A, D/P, T/T, ওয়েস্টার্ন ইউনিয়ন, মানিগ্রাম
যোগানের ক্ষমতা: 100000
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প্যাকেজের পরিমাণ:
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100 টুকরা
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রঙ:
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কাস্টমাইজড/সিলভার/প্লেন
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উপাদান:
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ইস্পাত
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থ্রেড পিচ:
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কাস্টমাইজড
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জারা প্রতিরোধ:
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উচ্চ/কাস্টমাইজড
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হেডটাইপ:
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কাঁধের বোল্ট
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বন্দর:
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শেনজেন, গুয়াংজু
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সাধারণ ব্যবহার:
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নির্মাণ, স্বয়ংচালিত, যন্ত্রপাতি
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শেষ করুন:
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প্লেইন/পলিশ
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থ্রেড টাইপ:
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যন্ত্রযুক্ত থ্রেড
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মরিচা প্রমাণ:
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হ্যাঁ
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প্রস্তুতকারক:
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বিভিন্ন নির্মাতারা
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প্যাকেজের পরিমাণ:
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100 টুকরা
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রঙ:
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কাস্টমাইজড/সিলভার/প্লেন
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উপাদান:
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ইস্পাত
|
|
থ্রেড পিচ:
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কাস্টমাইজড
|
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জারা প্রতিরোধ:
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উচ্চ/কাস্টমাইজড
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হেডটাইপ:
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কাঁধের বোল্ট
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বন্দর:
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শেনজেন, গুয়াংজু
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সাধারণ ব্যবহার:
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নির্মাণ, স্বয়ংচালিত, যন্ত্রপাতি
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শেষ করুন:
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প্লেইন/পলিশ
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থ্রেড টাইপ:
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যন্ত্রযুক্ত থ্রেড
|
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মরিচা প্রমাণ:
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হ্যাঁ
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প্রস্তুতকারক:
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বিভিন্ন নির্মাতারা
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1/4-20 316L Stainless Steel Aerospace Shoulder Bolt Precision Fastening Solutions for Aircraft Structureshead
1,Description:
Shoulder screw are also called shaft shoulder screws, stop screws, stop bolts, brake bolts, equal-height screws, etc. The shoulder screw is used in conjunction with the bolt pull rod and is mainly used as a mold accessory to control the opening stroke between the fixed mold seat plate, the runner push plate and the fixed mold template in the three-plate mold.
Because it can be set on the parting surface of the mold, the mold design can be miniaturized. This type of product features high hardness, good toughness, excellent wear resistance and heat resistance. It is suitable for precision molds and can significantly extend their service life. Especially, the thermal deformation of precision molds has been effectively controlled, making it suitable for molds in high-temperature working environments Its standard is ISO 7379. The material of the 12.9 grade plug screw is SCM435 alloy steel, with an overall hardness of HRC40°
The shoulder screw is used in conjunction with the bolt pull rod and is mainly used as a mold accessory to control the opening stroke between the fixed mold seat plate, the runner push plate and the fixed mold template in the three-plate mold.
Because it can be set on the parting surface of the mold, the mold design can be miniaturized. This type of product features high hardness and toughness, as well as good wear resistance and heat resistance. It is suitable for precision molds and helps to extend their service life, especially playing a certain role in controlling the thermal deformation of precision molds. It is applicable to molds in high-temperature working environments.
2,Applications:
Screws are widely used in the industrial field. From large items like spaceships and aircraft to small ones like mobile phones and tables and chairs, they are indispensable. Therefore, they are also known as the "rice of industry".
How important is that tiny screw to an aircraft? According to the data, the Boeing 747There are approximately over 6 million parts in the series of aircraft, and among these parts, fastenersThe proportion accounts for half.There are also quite a few flight safety accidents caused by screw problemsIf experts analyze that one of the reasons for the emergency landing of Sichuan Airlines Flight 3U8633 is very likely to be that the screws of the windshield were substandard or excessive force was applied during installation, which led to cracks in the windshield. It finally falls off.
3,Technical Advantages
Austenitic Stainless Steel (Austenitic Stainless Steel) refers to stainless steel that has an austenitic structure at room temperature. When steel contains approximately 18% Cr, 8% to 25% Ni, and 0.1% C, it has a stable austenitic structure. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is relatively low. It cannot be strengthened through phase transformation and can only be strengthened by cold working. If elements such as S, Ca, Se, and Te are added, it will have good machinability.
The matrix structure of austenitic stainless steel is mainly composed of austenite phase (y phase) with a face-centered cubic lattice structure, and it is non-magnetic. Generally, solution treatment is carried out above 1000℃. It has no phase transformation point. With rapid cooling, a complete austenitic structure can be obtained, which is highly malleable, has excellent processability and corrosion resistance. According to the different alloying methods adopted to stabilize the austenitic matrix, austenitic stainless steel can be divided into two major series: Cr-Ni austenitic stainless steel and Cr-Mn austenitic stainless steel. The former takes Ni as the main austenitizing element and is the main body of austenitic stainless steel. The austenitizing elements of the latter, in addition to Mn, also include N and often contain a small amount of Ni. Therefore, this series is mostly referred to as Cr-Mn austenitic stainless steel. Cr-ni series austenitic stainless steel contains about 18% Cr, 8% to 10% Ni, and generally less than 0.1% C, and has a stable austenitic structure.
This type of steel, in addition to being resistant to corrosion by oxidizing acid media, can also resist corrosion by sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains elements such as Mo and Cu. If the carbon content in this type of steel is less than 0.03% or it contains Ti and Ni, its resistance to intergranular corrosion can be significantly improved. High-silicon austenitic stainless steel has good corrosion resistance to concentrated nitric acid. Due to the comprehensive and excellent overall performance of austenitic stainless steel, it has been widely applied in various industries.
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.
