All posts by: NJ Lee

About NJ Lee

Majored in electromechanical engineering, served in aluminum extrusion for 8 years, aluminum equipment for 15 years, currently working as a sales engineer at Brightstar Aluminum Machinery. Rich experience in aluminum extrusion equipment and melting and dross processing fields.

The difference between dry dust collecting system and wet dust collecting system The difference between dry dust collecting system and wet dust collecting system Dry dust collecting system The dry dust removal technology has high dust collection efficiency, and in addition, it has the advantages of convenient management, less land occupation and anti-corrosion features. The […]

Part four: extrusion crack, Aluminum extrusion defect analysis and quality control method Extrusion crack, Aluminum extrusion defect analysis and quality control method Extrusion crack causes and solutions Extrusion crack This is a small arc-shaped crack at the edge of the lateral test piece of the extruded product, and periodically cracks at a certain angle along […]

Casting aluminium chemical composition Casting aluminium chemical composition Chemical Composition ( Mass % ) Alloy Cu Si Mg Zn Fe Mn Cr Ni Sn Pb Ti Al ADC1 1.0 max 11.0 to 13.0 0.3 max 0.5 max 1.3 max 0.3 max   0.5 max 0.1 max 0.20 max 0.30 max Balance ADC3 0.6 MAX 9.0 […]

Aluminum profile sand blasting safe operation process Aluminum profile sand blasting safe operation process Here is the safe operation process for aluminum profiles sand blasting machine: 1. The air tank, pressure gauge and safety valve of the automatic sand blasting machine should be checked regularly. The gas tank discharges dust once every two weeks, and […]

Pulse bag dust collector control process Pulse bag dust collector control process The control process of pulse bag dust collector The bag dust collector has high dust removal efficiency and can effectively caught ultrafine particles of less than 5 microns that are harmful to the human body. In recent years, the bag dust removal technology […]

Design of collection method for melting furnace baghouse dust collector Design of collection method for melting furnace baghouse dust collector Baghouse dust collector collection method design The characteristics of the exhaust gas of the aluminum melting furnace are: The dust is fine and light; The exhaust gas temperature is high (about 200 ° C); The […]

Electrostatic powder coating principle Electrostatic powder coating principle The working principle of Electrostatic powder coating Electrostatic powder coating is based on the principle of high voltage electrostatic corona electric field. The metal guide ring on the spray gun head is connected to the high voltage negative electrode, and the coated workpiece is grounded to the […]

India customer aluminium dross machine and dross cooling machine installation and commissioning work completed India customer aluminium dross machine and dross cooling machine installation and commissioning work completed Aluminium dross machine and dross cooling machine installation and commissioning Dated on 24th September 2019, our technician was back from Kolkata of India last week.  The installation […]

How to identify the quality of casting billets How to identify the quality of casting billets Casting billets quality identifing As the requirement for aluminum profile from the customers is getting higher and higher, aluminum billets materials play important role in extrusion quality. To ensure the quality of aluminum materials, we must first ensure the […]

The preparing work you need to do before shot blasting The preparing work you need to do before shot blasting Shot blasting preparing work 1. Carefully read the drawings, process documents, based on the product, clean the product and then shot blasting; 2. According to the workpiece material to be shot blasted, the purpose of […]

Part one: Extrusion funnel, Aluminum alloy extrusion defect analysis and quality control method Extrusion funnel, Aluminum alloy extrusion defect analysis and quality control method Extrusion funnel causes and solutions Extrusion funnel  At the end of some extruded products, after inspection at low magnification, there is a phenomenon in horn-like in the middle of the section, […]

Wood grain heat transfer process operation procedure   Wood grain heat transfer process operation procedure Wood grain effect sublimation procedure  1. Preparation before production: 1.1 Power supply, voltage, compressed air pressure, furnace top fan operation is normal. Whether the oven temperature can meet the needs, etc., confirm that all equipment can operate normally before the […]

Win reputation with quality and service, create legend with brand and strength Win reputation with quality and service, create legend with brand and strength Brightstar Aluminum Machinery Brand building For aluminum machinery and equipment companies, the market is complicated and changeful.  For traditional manufacturing companies, “by what” survival and development? For the business owner, is […]

Advantages and applications of automatic conveying sand blasting machine Advantages and applications of automatic conveying sand blasting machine Automatic conveying sand blasting machine advantages and application Advantages: 1. The conveying speed of the automatic conveying type sand blasting machine can be digitally controlled by frequency conversion. Fast sandblasting speed and stable quality and simple operation; […]

Vertical aluminum mold scraps extractor wait for the delivery in the workshop Vertical aluminum mold scraps extractor wait for the delivery in the workshop Vertical aluminum mold scraps extractor is the auxiliary equipment for aluminum extrusion dies.  The function is to extract aluminum materials that were hold-up in the dies with the hydraulic pressure, reduce […]

ASTM B179-06 Aluminum alloys chemical composition ASTM B179-06 Aluminum alloys chemical composition ALUMINIUM ALLOYS CHEMICAL COMPOSITION(%) ASTM B179-06 (Si) (Fe) (Cu ) (Mn) (Mg) (Cr) (Ni) (Zn) (Ti) (Sn) (AL) A356.1 6.5-7.5 0.15 Max 0.20Max 0.10 Max 0.3-0.45 – – 0.10 Max 0.20 Max – Balance A356.2 6.5-7.5 0.12 Max 0.10Max 0.05 Max 0.30-0.45 – […]

Aluminum profile aging process Aluminum profile aging process The aging process for aluminum extrusions Aluminum profile frame loading requirements: 1. General curtain wall aluminum profiles, common door and window aluminum profiles, and industrial aluminum profiles must be placed in the same frame; 2. Thermal break curtain wall aluminum profiles, thermal break door and window profiles […]

Aluminum profiles wrapping machine delivery for Kingdom of Saudi Arabia Aluminum profiles wrapping machine delivery for Kingdom of Saudi Arabia Dated on 3rd August 2019, Aluminum profiles wrapping machine was delivered to the Kingdom of Saudi Arabia customer.  The machine was carefully inspected and tested prior to the delivery. We want to ensure that the […]

GBT 15115-2009 Aluminium alloys chemical composition GBT 15115-2009 Aluminium alloys chemical composition ALUMINIUM ALLOYS CHEMICAL COMPOSITION(%) GB/T 15115-2009 GB/T 15115-2009 (Si) (Fe) (Cu ) (Mn) (Mg) (Ni) (Zn) (Ti) (Pb) (Sn) (AL) YL101 (YZAlSi10Mg) 9.0-10.0 1.0Max 0.6Max 0.35Max 0.45-0.65 0.5Max 0.4Max – 0.1Max 0.15 Max Balance YL102 (YZAlSi12) 10.0-13.0 1.0Max 1.0Max 0.35Max 0.1Max 0.5Max 0.4Max […]

JIS H2118:2006 Aluminium Alloys Chemical composition JIS H2118:2006 Aluminium Alloys Chemical composition ALUMINIUM ALLOYS CHEMICAL COMPOSITION(%) JIS H2118:2006 (Si) (Fe) (Cu ) (Mn) (Mg) (Cr) (Ni ) (Ti) (Cd) (Hg) (Pb) (Sn) (Sr) (Cr) (AL)   ADC1(AD1.1) 11.0-13.0 0.6-1.0 1.00Max 0.30Max 0.30Max – 0.50Max 0.30Max – – 0.20Max 0.10Max – – Balance ADC3(AD3.1) 9.0-11.0 0.6-1.0 0.60Max […]

Causes and solution for aluminum profile surface scratches Causes and solution for aluminum profile surface scratches   Aluminum profile surface: scratching, scraping Causes: 1.Impurities on aluminium ingot or segregation of ingot chemical composition When there is a large amount of segregation float on the billets surface, and aluminum billets is not homogenized or the heat treatment […]

Aluminium dross machine and dross cooling machine delivery for Ahmedabad customer of India Aluminium dross machine and dross cooling machine delivery for Ahmedabad customer of India India Ahmedabad customer aluminium dross machine and dross cooling machine delivery Dated on 18th July 2019, Aluminium dross machine and aluminium dross cooling machine loading was done this morning […]

More benefits of molten aluminium direct supply More benefits of molten aluminium direct supply Direct supply of molten aluminium has more benefits, saving more than 100.00USD per ton The direct supply of aluminum liquid is in the state of “aluminum water” from molten aluminium suppliers, instead of the traditional “aluminum ingot” supply to the cast […]

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