月: 2023年3月

What Is a Storage Rack?

A storage rack is designed for side-by-side container storage, widely used to efficiently organize, store, and retrieve items. It optimizes vertical space usage, crucial in environments like warehouses and distribution centers. Organizing items in containers on these racks streamlines finding and retrieving necessary items, enhancing work efficiency. Note the importance of adhering to weight limits to prevent overloading and potential rack failure.

Applications of Storage Racks

Storage racks serve multiple roles in various settings:

1. Warehouse/Logistics Center

Crucial for inventory management and goods storage, racks with adjustable shelves maximize space and streamline logistics processes.

2. Retail Store

Utilized for product display and inventory organization, aiding in the management of seasonal and sale items.

3. Factory

Organizes parts and materials for production lines, enhancing manufacturing speed and efficiency. Also, key for storing maintenance components.

Principle of Storage Racks

Storage racks are simple yet effectively designed systems comprising frames, shelves, and accessories to facilitate organized storage and easy retrieval.

1. Frame

The structural foundation, consisting of vertical supports and horizontal cross beams, ensures stability and supports the load.

2. Shelf

Horizontal platforms for storing items, often adjustable to accommodate various item sizes.

3. Accessories

Includes wheels for mobility, and optional hooks and drawers for enhanced organization.

Choosing a Storage Rack

Consider the following when selecting a storage rack:

1. Material

Choose based on durability and environment; options include plastic, wood, and metal, with the latter often preferred for its strength and outdoor suitability.

2. Number of Tiers

Determines storage capacity and height; select based on goods quantity and ceiling height.

3. Storage Volume

Ensure the rack accommodates the size and volume of items intended for storage.

4. Accessories

Assess available accessories like hooks, drawers, and dividers for improved storage efficiency.

What Is Flame Retardant Tubing?

Flame retardant tubing is designed to resist ignition and prevent the spread of fire. It is crucial for enhancing safety by withstanding high temperatures without significant degradation. These tubes are particularly valuable in environments where there’s a high risk of fire, ensuring that pressure resistance is carefully managed to avoid excessive pressure at elevated temperatures.

Applications of Flame Retardant Tubing

Flame retardant tubing is utilized across various sectors for its safety features:

1. Automotive Industry

Used in engines, fuel supply, and brake systems to mitigate fire risks, enhancing vehicle safety.

2. Aircraft Industry

Employed in fuel supply and electrical wire protection, crucial for maintaining safety in harsh operational environments.

3. Electrical/Electronic Equipment

Protects internal wiring and circuits in high-power devices, preventing malfunctions and fires.

4. Industrial Field

Essential in petrochemical and manufacturing processes for reducing fire hazards.

5. Disaster and Crime Prevention Measures

Used in firefighting equipment within buildings and public facilities to minimize fire damage.

Principle of Flame Retardant Tubing

Flame retardant tubing incorporates several key principles:

1. Use of Flame-Resistant Material

Made from materials like PVC with added flame retardants or fluoropolymers, offering inherent resistance to flames.

2. Self-Extinguishing

Designed to extinguish flames automatically, preventing the spread of fire.

3. Preventing Flame Propagation

Prevents flames from traveling through the tubing, minimizing fire spread.

4. Resistance to High Temperatures

Maintains structural integrity even under high temperatures, ensuring functional safety during a fire.

5. Chemical Resistance

Resists corrosion and deterioration by chemicals, allowing for versatile applications.

Types of Flame Retardant Tubing

Diverse types of flame retardant tubing cater to specific needs:

1. Polyvinyl Chloride (PVC) Flame Retardant Tubing

Flexible and heat-resistant, suitable for electrical wiring and automotive applications.

2. Fluororesin Flame-Retardant Tubing

Offers exceptional heat and chemical resistance, used in aerospace and semiconductor manufacturing.

3. Silicone Flame Retardant Tubing

Features high durability and is used in the medical and food industries for equipment protection and insulation.

4. Aluminum Composite Flame Retardant Tubing

Combines resin and aluminum foil for enhanced fire resistance, commonly used in construction and vehicle wiring.

What Is a Manual Hydraulic Pump?

A manual hydraulic pump is a manually operated hydraulic pump used to transmit rotational power through a flat belt. This system allows for the transfer of rotational motion from an engine or motor to various mechanical parts, enabling different rotational movements. Flat belts, characterized by their flat, rectangular cross-section, are valued for their simplicity and ease of installation without needing to dismantle the pulley. 

Applications of Manual Hydraulic Pumps

Manual hydraulic pumps are used in various applications:

1. During Power Outages or for Auxiliary Purposes

For operating water gates, firefighting equipment, and flood prevention plates when electrical power is unavailable.

2. Small Hydraulic Equipment

For manual jacks, spreaders, hydraulic cutters, and other small-scale hydraulic operations.

3. Channel Switching

For managing water flow in drainage systems, irrigation channels, and hydroelectric power generation.

4. Greasing

For applying grease to machinery, generators, and large vehicles, thanks to the pump’s high maximum working pressure and compatibility with viscous fluids.

Principle of Manual Hydraulic Pumps

Manual hydraulic pumps operate based on Pascal’s principle and the lever principle, enabling efficient power transmission through manual force. The design allows for high-pressure generation with minimal effort, leveraging mechanical advantages for ease of use.

How to Choose a Manual Hydraulic Pump

When selecting a manual hydraulic pump, consider the following factors:

1. Material

Choose based on wear and corrosion resistance; common materials include steel, aluminum, and reinforced plastic.

2. Dimensions

Consider the pump’s size and operational capacity, affecting its suitability for specific applications.

3. Installation Method

Ensure compatibility with the intended use, focusing on the ease of installation and operation.

What Is a Lever Handle?

A lever handle is a type of handle used to operate a door or gate via a latch mechanism. Common in homes, commercial facilities, and vehicles, lever handles are favored for their ease of operation and often include a built-in locking mechanism for improved security. Available in various designs, they can complement the interior aesthetics of any space. However, considerations should be made for durability in high-use or harsh environments, and accessibility for individuals with physical limitations.

Uses of Lever Handles

Lever handles serve various functions across different settings:

1. Housing

Used on entrance and interior doors to ensure privacy and security within residential spaces.

2. Commercial Facilities

Facilitate access management in offices and restaurants, sometimes featuring advanced locking systems for enhanced security.

3. Public Facilities

Bar-type and push-bar lever handles ensure easy operation in emergencies, managing access and security for large crowds.

4. Vehicles

Designed for ease of use, they operate doors and trunks, contributing to passenger safety by enabling secure door operation.

Principle of Lever Handles

Lever handles function by securing or releasing a door through a latch mechanism, consisting of a latch bolt, handle, and latch mechanism.

1. Latch Bolt

Engages with the door frame to lock the door upon closing and retracts to release the door when operated.

2. Handle

The component used to manually operate the door, designed for ergonomic use.

3. Latch Mechanism

Controls the interaction between the handle and latch bolt, retracting or extending the latch bolt as necessary.

Types of Lever Handles

Diverse lever handle types cater to various operational and security needs:

1. Electronic Latch

Operated electronically, often found in public buildings and homes, unlocking via PIN code.

2. Cam Latch

Utilizes a cam for operation, known for its resistance to vibrations and minimal rattling.

3. Slide Latch

Features a sideways sliding mechanism to operate the door, common in internal doors and cabinets.

4. Draw Latch

Operated by pulling, typically used on double doors, named for its pulling (drawing) action.

What Is a Wire Container?

A wire container, also known as a mesh pallet, net basket, or palletina, is a box-shaped container featuring a mesh structure on all or some sides. These containers are used for storing and transporting a wide range of items. They are lightweight yet durable, offering reduced transportation costs and a long lifespan. The mesh design allows for free air and water circulation, making them ideal for sensitive cargo like food and medicine by preventing moisture and mold.

Uses of Wire Containers

Wire containers are utilized across various industries due to their ventilation and durability:

1. Food Industry

For transporting and storing fresh ingredients and refrigerated products, ensuring they remain at the correct temperature and minimizing spoilage.

2. Logistics

For moving products between factories, warehouses, and stores, providing ventilation to prevent moisture and mold, and enabling easy stacking and forklift transportation.

3. Agriculture

For transporting agricultural products, maintaining freshness, and preventing premature deterioration. Their lightweight nature facilitates easy handling.

Principle of Wire Containers

The mesh structure enhances ventilation, reducing moisture and foreign odors, important for food and medicine storage. They are lightweight, facilitating easy movement and reducing transportation costs, while allowing visibility of contents for better inventory management.

How to Choose a Wire Container

When selecting a wire container, consider material, casters, volume, and mesh coarseness:

1. Material

Choose between plastic, for its lightweight and rust resistance, and metal, for its high load capacity and durability, ensuring it has a suitable coating.

2. Casters

Consider adding casters for mobility, keeping in mind space constraints due to added height.

3. Volume

Select a size based on the cargo’s dimensions and weight to ensure efficient loading.

4. Mesh Coarseness

Choose mesh coarseness based on the cargo’s size to prevent small items from slipping through or being unstable.

What Is a Hand Tap (Bit)?

A hand tap (bit) is a tool used to form female threads for screwing in various bolts by cutting.

It is used to make a hole drilled as a pre-drilled hole, and threads are formed by manual cutting. A hand tap comes in sets of three and is used in order from No. 1 to No. 3 to finish the threads.

There are various types of hand taps. Typical types include point taps, spiral taps, hand taps, and pipe taps.

In the case of these types of taps, the thread shape is formed by cutting by screwing the various types of taps into a pre-processed hole. There are two types of pre-holes: through holes and stop holes. The tap to be used may differ depending on the pre-processed hole to be machined.

Uses of Hand Taps

Hand taps are widely used in metalworking. Screws are often used to fasten a metal part to another part. In such cases, hand taps are used to form the female threads that tighten the screws.

Hand taps are basically used by hand, but that does not mean that they cannot be used for machining. However, hand taps are not suitable for mass production or automated machining because they cannot discharge chips and hold them in.

Principles of Hand Taps

There are three types of hand taps for manually cutting threaded holes: No. 1, No. 2, and No. 3, depending on whether they are used in the first, middle, or top position, or in what they are called. They are used in the following order to form a female thread.

1. First (No. 1) Tap

The No. 1 tap is the first tap to be used on a pre-drilled hole. The tip is thin and the cutting edge of the tip, which is the part that bites into the hole, is cut to 9 teeth.

2. Medium (No. 2) Tap

The medium (No. 2) tap is mainly used to feed the threads machined by the preceding tap. For this reason, the tapered shape is used for the first 5 threads from the tip.

3. Raise (No. 3) Tap

Raise (No. 3) taps have only 1.5 threads on the cutting edge of the tip. Even a stop hole can be machined deep into the hole, which is not possible with the tip and middle taps.

The tap is designed to machine one pitch of a screw per revolution. First, the tip of the first (No. 1) tap bites into the hole, and the tap follows the tip of the first tap. Usually, the tap is turned only one revolution and then turned back one-quarter of a turn, so that the tap does not cut all the way through the hole at once.

Other Information on Hand Taps

1. How to Use a Hand Tap

Hand taps are manual operation, so it is important to tap straight into the hole. When biting the tip of the first (No. 1) tap, care must be taken to ensure that the tap is not at an angle, as a bent tap tip will follow the threads of the tap.

In the order of the tap number, follow the depth of the cut of the tap, and process the tap without forcing it. Also, apply cutting oil when machining. Cutting oil reduces the frictional resistance of the tap and enhances the evacuation of chips, allowing for smoother cutting.

2. Hand Tap Handles

This tool allows manual drilling of threaded holes by attaching a handle to a tap drill. It is turned and processed little by little while using tapping oil.

The hand tap’s handle must be selected to match the size of the tap. Use of an incorrectly sized handle may cause the tap to spin and break.

3. Spiral Tap

A spiral tap has a spiral (twisted) groove, and chips are discharged along the groove. Since chips are discharged to the outside and do not accumulate in the tapped hole, spiral taps are used for the tapping of stop holes.

Since it is used for machining stop holes, it is necessary to machine to a specific position and is not often used manually. For manual machining, the No. 1 or No. 2 hand taps are used.

What Is a Portable Lift?

A portable lift is a mechanical device designed for lifting and moving objects in workplaces such as construction sites and warehouses. It facilitates working at heights and handling heavy objects efficiently without the need for scaffolding, allowing workers to operate from a stable platform. Proper training, knowledge of safety devices, emergency stop features, and regular maintenance and inspection are crucial for safe operation.

Applications of Portable Lifts

Portable lifts serve various purposes across different industries:

1. Warehouse

In warehouses, portable lifts like pallet lifters are essential for loading, unloading, and moving goods, as well as for accessing high shelves. They enhance logistics efficiency and reduce physical strain on workers.

2. Construction Site

At construction sites, portable lifts are vital for lifting materials and equipment and for providing access to elevated areas, thereby improving safety and operational efficiency.

3. Power Line Maintenance

Portable lifts are employed for maintenance tasks on power lines and communication facilities, where working at height poses significant risks. They enable efficient inspection and repair work.

4. Forestry and Agriculture

In forestry and agriculture, portable lifts are used for tasks such as timber felling and fruit harvesting, providing access to high places.

Principle of Portable Lifts

Portable lifts, capable of handling loads up to approximately 1,500 kg, are constructed from durable materials like iron and stainless steel, or aluminum for lighter models. They convert energy into movement or force, enabling the lifting of loads to predetermined heights. Hydraulic systems and electric motors are commonly used as power sources.

Types of Portable Lifts

Diverse types of portable lifts cater to specific needs:

1. Pallet Lifter

Used for lifting and transporting pallets and heavy loads, typically featuring a hydraulic system for raising the load platform. Essential in warehouses and distribution centers.

2. Aerial Work Platform

A lift that elevates a platform for workers, used on construction sites and for maintenance tasks to provide safe, efficient access to heights.

3. Boom Lifter

Features an extendable boom for height adjustment, facilitating access to remote locations. Utilized in construction, communication tower maintenance, and event staging.

4. Hand Lifter

A manually operated lift, including manual cranes and pallet jacks, suited for small-scale operations and maneuvering in tight spaces. Known for its portability and affordability.

What Is a Small Binding Screw?

A binding head machine screw is characterized by a flat underside of the head, a rounded top, and a trapezoidal cross-sectional shape. They stand out from other round-headed screws such as pan-head and truss screws by having a head diameter that is larger than a pan-head screw but smaller than a truss machine screw.

A machine screw is a screw with a relatively small nominal diameter head, typically featuring slotted or cross-recessed drive parts.

Usage of Small Binding Screws

Small binding screws are designed for fastening objects with internal threads. Unlike other screws, they do not require a tapered counterbore on the fastened object, allowing the screw head to protrude slightly. Due to their large head diameter, small binding screws provide a significant contact area, preventing indentation under surface pressure. They are chosen over truss screws when a smaller head diameter is needed, serving a general purpose similar to pan-head machine screws. Their rounded head also offers an aesthetically pleasing appearance for visible applications.

Common uses include securing parts in home appliances and fastening power cord screws in outlet plugs.

Principle of Small Binding Screws

Small binding screws function by screwing directly into tapped holes, eliminating the need for nuts. Tightening is achieved using a Phillips or flathead screwdriver inserted into the head’s slot or cross-recess. Notably, the length measurement of small binding screws excludes the head height, aligning with the convention for pan head screws and hex bolts, contrasting with countersunk screws where head height is included.

Types of Small Binding Screws

Small binding screws are categorized based on the head’s hole shape and material strength classification:

1. Hole Shape of Machine Screw Head

Head designs include slotted (minus hole) for flathead screwdrivers and cross-recess (plus hole) in H (Philips) or Z (Pozidriv) shapes, each requiring specific tools. The Z type is designed to minimize cam-out during tightening.

2. Material and Strength Classification

Materials include steel, stainless steel, and brass. The choice of material and strength depends on the application’s requirements, with standards ensuring compatibility and performance.

Other Information on Binding Machine Screws

1. Standards for Binding Machine Screws

Specifications are governed by various standards, including ANSI/ASME standards, covering slotted, cross-recessed, and other head types. These standards dictate the screws’ dimensional and mechanical properties, ensuring their suitability for a wide range of applications.

2. Thread Nominal and Length

Nominal sizes range from M2 to M8, with recommended lengths from 3 (4) to 60mm. Specific length ranges depend on the thread size.

What Is a Corner Protector?

A corner protector is typically used by attaching an angular piece to corners. These protectors come in a variety of materials, including polyvinyl chloride (PVC), resin, aluminum, stainless steel, and other metals. They are available in L-shaped and U-shaped designs. Corner protectors can be affixed to building materials and furniture with exposed corners to safeguard them. They are also used to cover and conceal joints at corners.

Uses of Corner Protectors

Corner protectors are used to shield the corners of materials like wood in various applications. In construction, they are utilized in building sewers and residential structures. They help camouflage joints at the corners of exterior building walls and are sometimes used for interior decoration. Metal corner protectors with holes can be fastened with screws or bolts for connecting components during furniture assembly.

Principles of Corner Protectors

Corner protectors serve a range of purposes and are made from various materials, including plastic, metal, and PVC. Metal corner protectors are often used in large construction projects, like furniture assembly, due to their strength. They are especially useful in areas needing additional support and are frequently employed to reinforce connections. In Japan, where earthquakes are common, they are often used to secure furniture to prevent tipping.

L-shaped corner protectors are primarily used as anti-tipping fittings, secured with bolts and nuts. They are commonly installed on light to medium weight racks to prevent furniture and racks from toppling over. Vinyl chloride materials are soft and provide cushioning upon impact, making them suitable for safety applications in places like factories where they serve as shock-absorbing materials. Depending on the product, they can be affixed to the corners of pillars using double-sided tape.