Hardware tools (TOOLS & HARDWARE) refer to the general term for various metal devices made of iron, steel, aluminum and other metals through physical processing such as forging, rolling, and cutting. Hardware tools are divided according to the purpose of the product and can be divided into tool hardware, construction hardware, daily hardware, lock grinding tools, kitchen and bathroom hardware, household hardware and hardware parts.
Hardware tools include various manual, electric, pneumatic, cutting tools, auto maintenance tools, agricultural tools, lifting tools, measuring tools, tool machinery, cutting tools, tool fixtures, cutting tools, molds, cutting tools, grinding wheels, drill bits, polishing machines, Tool accessories, measuring tools and cutting tools, grinding tools, abrasives, etc.
Application
In the hardware market, due to the rapid development of production technology and rising labor prices, developed countries in Europe and the United States have transferred the production of common products to developing countries. They only produce high value-added products. And China has strong market potential, so it is more conducive to its development into a major hardware processing and export country. my country's hardware market is mainly distributed in Zhejiang, Jiangsu, Shanghai, Guangdong and Shandong, among which Zhejiang and Guangdong are the most prominent foam injection molds.
Although various hardware tools produced in my country are widely used in various industries and have achieved significant economic benefits. However, its technical level still lags behind similar foreign products. Vigorously develop the hardware tool industry, pay close attention to the development of new products and new processes, accelerate the development of my country's hardware tool industry, and improve economic efficiency and overall technical level.
At present, the leading role in the entire hardware tool industry is not strong. The leading and backbone enterprises in the hardware tool industry do not have obvious advantages in terms of technology and overall industry competitiveness in domestic and foreign markets. Furthermore, technological innovation capabilities are weak and the market structure is too single. The main business of hardware tools comes from foreign trade orders, and the dependence on exports is too high. Under the influence of the economic crisis caused by the international financial crisis, the export markets of these enterprises have shrunk sharply, posing a serious threat to their survival and development, and their brand building has lagged behind. Most hardware tool companies rely on OEM production and lack visibility and core competitiveness.
Therefore, my country's hardware tool industry must increase investment, pay close attention to the development of new products and the promotion of new technologies and new processes, continuously expand the application fields of diamond, improve the overall technical level and market competitiveness of the hardware tool industry, and strive for variety and quality. Survive and develop large-scale injection molding through scientific and technological progress.
Classification
1.Hand tools
Hand tools are a classification of the hardware industry. The hardware industry is divided into hand tools, electric tools, auto maintenance tools, pneumatic tools, welding equipment, abrasive tools, daily hardware, construction hardware, kitchen and bathroom hardware, small household appliances, etc.
Generally used in special environments, such as flammable, explosive, and extremely harsh conditions. It is a consumable product, so the specific purchase quantity and frequency must be analyzed in detail.
2. Power tools
In 1895, the German company Fein manufactured the world's first DC electric drill. The housing is made of cast iron and can drill 4mm holes in the steel plate. Then a three-phase power frequency (50Hz) electric drill appeared, but the motor speed failed to exceed 3000r/min. In 1914, electric tools driven by single-phase series motors appeared, and the motor speed reached more than 10,000 r/min. In 1927, a medium-frequency electric power tool with a power supply frequency of 150 to 200 Hz appeared. It not only had the advantages of a single-phase series motor with high speed, but also had the advantages of a three-phase power frequency motor with a simple structure and reliability. However, it required medium-frequency current for power supply. , use is restricted.
3. Pneumatic tools
Broadly speaking, pneumatic tools are mainly tools that use compressed air to drive a pneumatic motor and output kinetic energy to the outside world. According to their basic working methods, they can be divided into: 1) Rotary type (eccentric movable blade type). 2) Reciprocating type. (Volume piston type) General pneumatic tools mainly consist of the power output part, the working mode conversion part, the intake and exhaust passage parts, the operation start and stop control part, the tool housing and other main parts. Of course, the operation of pneumatic tools must also have an energy supply part, Air filtration and air pressure adjustment parts as well as tool accessories, etc.
4. Hardware accessories
Hardware accessories refer to machine parts or components made of hardware, as well as some small hardware products. It can be used alone or as an assistive device. For example, hardware tools, hardware parts, daily hardware, construction hardware and security supplies, etc. Most of the small hardware products are not final consumer goods. Rather, they are used as supporting products for industrial manufacturing, semi-finished products, tools used in the production process, etc. Only a small number of daily hardware products (accessories) are consumer tools necessary for people's lives.
Selection guide
1. Is there any turbid oil stain on the surface?
When it comes to hardware products, be sure to check whether the anti-rust technology is in place. Gold, silver, copper, iron, and tin are inherently prone to rust, which requires the production of hardware tools to have ultra-high anti-rust technology. When purchasing, you can check whether the product will leave thick oil stains on your hands and whether it will be sticky on your hands. If so, this product is generally unqualified. In addition, it can be identified through the sense of smell. If the product has a pungent odor, there is usually an oversight during the production.
2. Is the steel seal clear?
Hardware products are generally printed with brand words, labels, etc. The font is very small, but most genuine products use steel stamping technology and are embossed before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. The fonts of counterfeit products are relatively blurry. Due to the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand.
3. Is the steel seal clear?
Hardware products are generally printed with brand words, labels, etc. The font is very small, but most genuine products use steel stamping technology and are embossed before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. The fonts of counterfeit products are relatively blurry. Due to the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand.
4. "Prick up your ears" and listen to the sound
Shake the product and listen for any noise. The production conditions of most counterfeit products are backward and they are completely manual workshop-style operations. During the production process, impurities such as sand are inevitably mixed in and hidden in the bearing body, so they will make noise when rotating. This is the biggest difference from genuine brands that strictly implement production standards and use machine operations.
maintenance
1. Tools should be kept centrally by dedicated personnel and should be easy to inspect and repair.
2. When dangerous tools are on loan, protective equipment should be issued at the same time.
3. Various tools should be stored in fixed places.
4. Each tool should have recorded data, including purchase date, price, accessories, service life, etc.
5. Tool borrowing must be registered, and the borrowing data should be kept intact.
6. The number of tools should be inventoried regularly.
7. The storage of tools should be classified.
8. Tools that are more susceptible to damage should have backups.
9. Tool specifications should be standardized as much as possible.
10. Valuable tools should be stored properly to avoid loss.
11. Tool management should establish management and borrowing methods.
12. The tool storage place should avoid moisture and have a good environment.
13. Industrial and commercial scrapping shall be handled in accordance with regulations, and repurchase application shall be made at the same time.
14. Borrowing tools should be done cautiously, quickly, surely and simply.
Precautions
1. Before using the tool, a full-time electrician should check whether the wiring is correct to prevent accidents caused by misconnection of the neutral line and phase line.
2. Before using tools that have been left unused or damp for a long time, an electrician should measure whether the insulation resistance meets the requirements.
3. The flexible cables or cords that come with the tool must not be extended. When the power source is far away from the working place, a mobile switch box should be used.
4. The original plug of the tool must not be removed or replaced at will. When the original plug is damaged, it is strictly prohibited to directly insert the metal wire of the wire into the socket without using the plug.
5. If the tool shell or handle is found to be broken, stop using it and replace it.
6. Non-professional personnel are not allowed to disassemble and repair tools without authorization.
7. The rotating parts of hand-held tools should be protected.
8. Workers should wear insulating protective equipment (insulating shoes, insulating gloves, etc.) as required.
9. The power supply must be equipped with a leakage protector.
10. Overloading is strictly prohibited. Pay attention to the sound and temperature rise. If any abnormality is found, stop the machine immediately for inspection.
troubleshooting
Take the impact drill electric hammer as an example:
Common faults of impact drill electric hammers include: the motor does not run after power is connected; abnormal noise occurs and does not rotate or rotates very slowly after power is connected; the motor rotates but the drill bit does not impact or the impact force is weakened; the reduction box overheats; Ring fire or large sparks occur on the commutator.
We have analyzed these common faults as follows:
1. The motor does not run after the electric hammer is powered on.
Causes: 1. The power supply is cut off; 2. The connector is loose; 3. The switch has poor contact or does not operate; 4. The armature or stator coil is burned out; 5. The stator coil is open circuit; 6. The brush is used up.
Troubleshooting methods: 1. Repair the power supply. 2. Check all joints. 3. Repair or replace the switch. 4. Replace the armature or stator coil. 5. If it is broken at the outlet, it can be re-soldered before use, otherwise it must be rewound. 6. Replace a pair of brushes.
2. The electric hammer makes abnormal noises after being powered on and does not rotate or rotates very slowly;
Causes: 1. The switch contacts are burned out. 2. The mechanical part is stuck or the dynamic and static parts rub against each other. 3. The drill bit bites or hits the steel bar. 4. Special loose nut. 5. A small amount of armature short circuit or open circuit. 6. Chips get stuck when drilling deep holes. 7. The power supply voltage is low.
Troubleshooting methods: 1. Repair or replace the switch. 2. Check the mechanical parts. 3. Stop moving forward or choose another drilling location. 4. Tighten the special nut.
5. Repair or replace the armature. 6. Pull out the drill bit and remove the chips. 7. Adjust the power supply voltage.
3. The motor rotates but the drill bit does not impact or the impact force is weakened;
Causes: 1. There is dust and impurities stuck in the piston sleeve, which blocks the air holes. 2. The O-ring seal on the impact piston is damaged or worn.
Troubleshooting methods: 1. Clean the mechanical parts and clear the air holes. 2. Replace the O-ring seal.
4. The reduction gearbox is overheated;
Causes: 1. There is a lack of grease in the reduction gearbox or the grease is dirty. 2. The transmission part does not fit well or debris falls inside.
Troubleshooting method: 1. Add or replace grease. 2. Check the transmission part or remove impurities.
5. The surface of the casing is overheated;
Causes: 1. Excessive load or dull drill bit. 2. The winding is wet. 3. Improper assembly makes the armature run inflexibly. 4. The power supply voltage drops.
Troubleshooting methods: 1. Reduce the load and sharpen the drill bit. 2. Dry the windings. 3. Check whether the armature is stuck or rubbed against the iron core. 4. Adjust the power supply voltage.
