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Overview of process flow
Overview of process flow

Overview of process flow

Hot rolling (extrusion of seamless steel tubes): round tube blank → heating → piercing → three roll cross rolling, continuous rolling or extrusion → pipe stripping → sizing (or reducing) → cooling → blank tube → straightening → hydrostatic test (or flaw detection) → marking → warehousing.

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Stainless steel needle tubes for manufacturing medical devices Stainless steel tubes for medical devices
Stainless steel needle tubes for manufacturing medical devices Stainless steel tubes for medical devices

Stainless steel needle tubes for manufacturing medical devices Stainless steel tubes for medical devices

The use environment of 304316 stainless steel pipe fittings for medical devices is very special. The disinfectant in the hospital is very corrosive to metal products. Therefore, there are certain standards for material selection. Generally, 18% chromium+8% nickel 30418% chromium+10% nickel 316 stainless steel can ensure that the devices are more resistant to corrosion and have a longer service life.

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Application of industrial pipeline
Application of industrial pipeline

Application of industrial pipeline

Industrial pipelines are widely used in industrial and mining enterprises, public institutions and other industries, and are distributed in urban and rural areas. Part of the industrial pipelines belong to pressure pipelines (the pipelines under the supervision of the technical quality department of the State Market Supervision Bureau), which belong to the pressure pipelines with the most types of industrial pipelines' technological processes, the most complex changes in the production and manufacturing environment, the more types of media transported and the more stringent conditions. See Figure 1 for the scope relationship between industrial pipeline and pressure pipeline.

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Requirements for connection of metal pipes
Requirements for connection of metal pipes

Requirements for connection of metal pipes

Before connection, screw the pipe fittings on by hand to check the tightness of pipe threads. After hand screwing, the pipe thread shall have enough assembly allowance for screwing, otherwise, appropriate pipe fittings shall be selected or the thread cutting amount shall be adjusted when machining the thread.

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Processing technology of metal pipe
Processing technology of metal pipe

Processing technology of metal pipe

By screwing the union nut onto the connecting part, the ring cutter can be inserted into the hole cavity of the connecting part, and the hole cavity has a conical surface. The outside of the seal ring is provided with a ring reinforcement at the nut side. The annular stiffener forms a torus at the transition area towards the narrow annular part. The inclination of the torus formed by the reinforcing part of the ring cutter relative to the pipe axis is 45 ° - 90 °. When fully assembled, the axial length of the annular stiffener enables the transfer element arranged on the annular surface to transfer its own negative image structure or itself to the end face of the connecting part. The transfer element has a three-dimensional profile, and its negative image can be transferred to the surface of the connecting part. The negative image is imprinted on the surface of the connecting part by the pressure exerted by the assembler in a manner similar to that of the die.

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Liu Wenjun: Investment in the hometown gives me a sense of achievement
Liu Wenjun: Investment in the hometown gives me a sense of achievement

Liu Wenjun: Investment in the hometown gives me a sense of achievement

In the northeast of the completed area of Dayushan Pump Industrial Park, there is a very quiet enterprise. There is no entry and exit of large vehicles, no placement and operation of large facilities and equipment, and several plants are ordinary and neat. However, when you walk into the factory, you can't help but be surprised, and you can feel more bright in front of you. A picture of vigorous production appears in front of you. This is Liaoning Jinyi Technology Development Co., Ltd., an enterprise with comprehensive strength ranking first in the country in the capillary field.

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2021 Liaoning Network Security Lecture Hall
2021 Liaoning Network Security Lecture Hall

2021 Liaoning Network Security Lecture Hall

The company leaders attached great importance to this study. If an enterprise wants to move forward, network informatization is essential, and network power is a big strategy in the new era and new development stage. Network security is a top priority, deepening information application and serving economic and social development. We should enable high-quality economic development, base ourselves on the new development stage, implement the new development concept, build a new development pattern, speed up the digital transformation of industries, realize the upgrading of the industrial base, modernize the industrial chain, and actively cultivate new models, new forms, and new industries; Accelerate the process of digital industrialization and realize the transformation of new and old driving forces; Give play to the role of data in improving total factor productivity, effectively reduce the transaction costs of the whole society, accelerate the construction of a modern industrial system, and achieve high-quality economic development. We should improve national governance capacity and public service level, accelerate national e-government construction, and build a collaborative and efficient government information resource sharing mechanism and system.

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Warmly celebrate that Liaoning Jinyi Auto Parts Co., Ltd. successfully passed the TS16949 quality system certification!
Warmly celebrate that Liaoning Jinyi Auto Parts Co., Ltd. successfully passed the TS16949 quality system certification!

Warmly celebrate that Liaoning Jinyi Auto Parts Co., Ltd. successfully passed the TS16949 quality system certification!

Warmly celebrate that Liaoning Jinyi Auto Parts Co., Ltd. successfully passed the TS16949 quality system certification!

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TEL

(86429) 4367888

Add：No. 78, Jianye Street, Dayu Mountain Pump Industrial Park, Huludao, Liaoning     

No. 8, Qianjin West Road, Chemical Industrial Park, Yizheng, Jiangsu 
Tel：18641620999   13951046498（WeChat）      E-mail：jinzhouliuwenjun@163.com

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