Due to the lack of national standards for general handles and the general lack of knowledge of quality and quality for general consumers, most of the handles on the market are low-grade goods. Dealers seem to be more willing to enter cheaper bargains, and the last bitter is users. . Therefore, when you buy the door handle, be sure to keep a few more eyes to avoid future troubles.
First, pay attention to materials.
1. Stainless steel material.
Stainless steel pipe should be thick, otherwise it may hit concave. It is recommended to use a two-punch method when buying. If it is a thin tube, it will soon be the same as the hand temperature, while the thick tube will be colder; the thick tube will be tapped with your fingers, and the sound will be crisp and the tube will be dull. For the past few years, Persh Meyer has been using tubes with a wall thickness of 1.2 mm. There are also some unscrupulous manufacturers to trick customers with cement. There are many grades of stainless steel, the price difference is very far, we must try to use the AISI304 stainless steel produced by the regular manufacturers.
2. Brass, zinc alloys, aluminum, etc.
Bai Shimei also chooses brass, zinc alloy and aluminum materials for the production of handles for different process requirements and shapes. Special attention should be paid to the fact that if it is subjected to strong forces, the zinc alloy material cannot be too thin and it is better not to use it for functional accessories. The author for a living quarters of the steel gate security door for statistics, stay three years later, more than 60% of the handle is disconnected from the foot, because the zinc alloy fittings are too thin, but also with poor quality zinc alloy. After all the materials are surface treated, it is difficult to distinguish the materials. Customers must ask clearly.
3. Natural stone, natural wood, plastics, etc.
There are many materials used to pull handles. Each material has advantages and disadvantages. We will not repeat them here. Interested parties may contact me.
Second, the surface technology.
Large handles are used for door faces, and the quality of the surface finish reflects the level of interior decoration. The manufacturing costs of surface processes may sometimes be higher than the cost of raw materials, so the handles with good surface finish will not be too bad. Observing the surface process can be seen from the following:
1. Polished stainless steel should be mirror-like blue and clear, no pitting, trachoma, if the fog is white, it is a lower grade. The brushed stainless steel is to be smooth, and the part that is in contact with the mirror surface should be straight and not hairy.
2. If the surface is electroplated, it depends on whether the color is pure, whether there is electroplating or not.
3. Whether the shape is full or not, good craftsmanship should be clear and angular, with regular lines, no burrs, and broken pockets.
4. Bo Shimei independently designs the polishing material production line. It has a large number of excellent polishing technicians and produces first-rate handles. Electroplating process high standards and strict requirements.
Third, the status of accessories.
1. The quality of the large handle parts is accurate, with poor tolerance and rough processing. Generally, the handles must be disassembled to discern the processing of internal parts. Bo Shimei handle accessories are mainly processed by numerical control equipment. The appearance is fine, and the teeth are full. After the door is installed, the handle is not easy to loosen and is durable.
2. The use of materials for accessories is also important. High quality handle screws and other standard accessories are mostly made of stainless steel, and the pumping connection is copper or stainless steel. After using the inferior handle for a period of time, the interior is heavily rusted, and sometimes it takes a lot of effort to remove the handle from the door.
3. If the customer cannot install the handle because of a screw, it will take a lot of time and money to find such a compatible screw. So Parker's American handle is equipped with one more spare screw and a long screw with a thickness of 10mm-55mm. This is to solve this worries.
Fourth, other aspects.
1. Good handles are generally more formal and have multiple layers of protection, while low-end ones are simple.
2. Can't just look for trademarks or not, but also see if there is any certificate, factory address, telephone number, etc. If there is a problem, you can claim it. Pasquale managed to keep his hand for two years, and the inspection number and other information were all on the certificate.
First, pay attention to materials.
1. Stainless steel material.
Stainless steel pipe should be thick, otherwise it may hit concave. It is recommended to use a two-punch method when buying. If it is a thin tube, it will soon be the same as the hand temperature, while the thick tube will be colder; the thick tube will be tapped with your fingers, and the sound will be crisp and the tube will be dull. For the past few years, Persh Meyer has been using tubes with a wall thickness of 1.2 mm. There are also some unscrupulous manufacturers to trick customers with cement. There are many grades of stainless steel, the price difference is very far, we must try to use the AISI304 stainless steel produced by the regular manufacturers.
2. Brass, zinc alloys, aluminum, etc.
Bai Shimei also chooses brass, zinc alloy and aluminum materials for the production of handles for different process requirements and shapes. Special attention should be paid to the fact that if it is subjected to strong forces, the zinc alloy material cannot be too thin and it is better not to use it for functional accessories. The author for a living quarters of the steel gate security door for statistics, stay three years later, more than 60% of the handle is disconnected from the foot, because the zinc alloy fittings are too thin, but also with poor quality zinc alloy. After all the materials are surface treated, it is difficult to distinguish the materials. Customers must ask clearly.
3. Natural stone, natural wood, plastics, etc.
There are many materials used to pull handles. Each material has advantages and disadvantages. We will not repeat them here. Interested parties may contact me.
Second, the surface technology.
Large handles are used for door faces, and the quality of the surface finish reflects the level of interior decoration. The manufacturing costs of surface processes may sometimes be higher than the cost of raw materials, so the handles with good surface finish will not be too bad. Observing the surface process can be seen from the following:
1. Polished stainless steel should be mirror-like blue and clear, no pitting, trachoma, if the fog is white, it is a lower grade. The brushed stainless steel is to be smooth, and the part that is in contact with the mirror surface should be straight and not hairy.
2. If the surface is electroplated, it depends on whether the color is pure, whether there is electroplating or not.
3. Whether the shape is full or not, good craftsmanship should be clear and angular, with regular lines, no burrs, and broken pockets.
4. Bo Shimei independently designs the polishing material production line. It has a large number of excellent polishing technicians and produces first-rate handles. Electroplating process high standards and strict requirements.
Third, the status of accessories.
1. The quality of the large handle parts is accurate, with poor tolerance and rough processing. Generally, the handles must be disassembled to discern the processing of internal parts. Bo Shimei handle accessories are mainly processed by numerical control equipment. The appearance is fine, and the teeth are full. After the door is installed, the handle is not easy to loosen and is durable.
2. The use of materials for accessories is also important. High quality handle screws and other standard accessories are mostly made of stainless steel, and the pumping connection is copper or stainless steel. After using the inferior handle for a period of time, the interior is heavily rusted, and sometimes it takes a lot of effort to remove the handle from the door.
3. If the customer cannot install the handle because of a screw, it will take a lot of time and money to find such a compatible screw. So Parker's American handle is equipped with one more spare screw and a long screw with a thickness of 10mm-55mm. This is to solve this worries.
Fourth, other aspects.
1. Good handles are generally more formal and have multiple layers of protection, while low-end ones are simple.
2. Can't just look for trademarks or not, but also see if there is any certificate, factory address, telephone number, etc. If there is a problem, you can claim it. Pasquale managed to keep his hand for two years, and the inspection number and other information were all on the certificate.