Sekisui Dljm Molding Interview Questions and Answers

The number of gates in a mould depends on the design and size of the mould, typically ranging from 1 to 16 or more.

• Number of gates in a mould can vary based on the complexity of the part being produced.

• Common numbers of gates include 1, 2, 4, 8, or 16.

• More gates may be used for larger parts or to ensure even distribution of material.

• The location of gates is important for proper filling and cooling of the mould.

• Gate des...read more

HRTC (Hot Runner Temperature Controller) is a system used in moulds to control the temperature of the hot runner system.

• HRTC helps in maintaining consistent temperature in the hot runner system of the mould.

• It ensures proper flow of molten material and prevents premature solidification.

• HRTC can be programmed to adjust temperature settings based on the specific requirements of the mould and material being used.

• Examples ...read more

The set-up valve pin is a tool used in the set-up process of machinery to ensure proper alignment and positioning.

• The set-up valve pin is a precision tool used to align components during the set-up process.

• It is typically made of hardened steel to withstand wear and tear.

• The set-up valve pin is inserted into designated holes or slots to ensure accurate positioning of parts.

• It helps in maintaining the correct alignment ...read more

Polishing in tool involves using abrasive materials to remove imperfections and create a smooth surface.

• Start by selecting the appropriate abrasive material for the type of tool and desired finish

• Secure the tool in a vice or clamp to prevent movement during polishing

• Apply the abrasive material to the tool surface using a polishing wheel or by hand

• Use a consistent pressure and motion to ensure even polishing

• Inspect the ...read more

Injection molding process is a manufacturing technique used to produce parts by injecting molten material into a mold.

• Molten material is injected into a mold cavity

• The material cools and solidifies to form the desired shape

• Commonly used for producing plastic parts in large quantities

• Used in various industries such as automotive, electronics, and medical devices

Machining working procedure and processes involve cutting, shaping, and finishing materials to create a desired product.

• Machining involves removing material from a workpiece using cutting tools.

• Common machining processes include turning, milling, drilling, and grinding.

• Precision is crucial in machining to ensure accurate dimensions and surface finish.

• CNC machines are commonly used in modern machining operations for inc...read more

Troubleshooting in injection molding machine involves identifying and resolving issues to ensure smooth operation.

• Check for any blockages in the machine's nozzle or mold

• Inspect the temperature settings to ensure they are correct for the material being used

• Verify that the injection pressure and speed are set appropriately

• Examine the cooling system to ensure it is functioning properly

• Monitor the cycle time and adjust as

Defects in engineering refer to imperfections or flaws in materials or structures. Controlling defects involves identifying, analyzing, and implementing measures to prevent or minimize them.

• Identify different types of defects such as cracks, voids, inclusions, and porosity.

• Use non-destructive testing methods like ultrasonic testing, radiography, and magnetic particle inspection to detect defects.

• Implement quality contr...read more

I investigate accidents by collecting evidence, interviewing witnesses, analyzing data, and reconstructing the events.

• Collect evidence from the accident scene

• Interview witnesses to gather information

• Analyze data such as CCTV footage or vehicle black box recordings

• Reconstruct the events leading up to the accident

• Consult with experts if needed, such as accident reconstruction specialists

PPE kit is a set of protective equipment worn to minimize exposure to hazards while working on machines.

• PPE kit includes items like gloves, goggles, helmets, masks, and coveralls.

• It is used to protect the wearer from physical, electrical, chemical, and biological hazards.

• PPE kit is essential to prevent injuries, illnesses, and accidents in the workplace.

• For example, wearing gloves can protect hands from cuts and burns

Understanding technical aspects of molding is crucial for successful management.

• Knowledge of different types of molding processes such as injection molding, blow molding, and compression molding

• Understanding of mold design and material selection

• Ability to troubleshoot molding issues and optimize production processes

• Knowledge of quality control measures in molding operations

• Experience with implementing lean manufacturin

Troubleshooting of molding involves identifying and resolving issues in the molding process.

• Identify the specific issue in the molding process, such as defects in the final product or inconsistencies in the molding cycle.

• Inspect the mold for any damage or wear that may be causing issues.

• Check the temperature, pressure, and speed settings to ensure they are within the recommended range.

• Adjust the parameters based on the...read more