It is the dream of most people to be able to have a unique wardrobe of their own and to be able to put in all their favorite clothes. Tailored for customers, reasonable use of every inch of space, custom furniture can meet the different needs of different consumers, deeply praised and loved by customers.
But consumers should be careful when choosing custom furniture, not just being blinded by the gorgeous appearance of the furniture. In fact, the service life of furniture is largely determined by hardware accessories, which directly affect the overall quality and function of custom furniture. Here, Xiaobian reminds everyone: Be careful, "Golden jade is out of it." Buying custom products, hardware accessories is the key!
Tuen Mun 1: Hinge Hardware
The main types of hinge hardware are three kinds of door hinges, drawer guides and cabinet hinges. In order to open easily and without noise, it is better to select the ball bearing in the shaft of the hinge.
The drawer guide rail is divided into two kinds of rails and three rails. When selecting the brightness of the exterior paint and plating, the gap and strength of the load wheel determine the flexibility and noise of the drawer opening and closing. The load-bearing wheel with uniform wear and rotation should be selected. .
The hinges of the cabinet door are divided into two types: detachable type and non-detachable type. In addition to the visual inspection and the smoothness of the hinge surface of the hand hinge, attention should be paid to the reset performance of the hinge spring. The hinge can be opened at 95 degrees, and the hinges are pressed by both sides by hand. Observe that the supporting spring piece is not deformed or broken, and it is very strong and is a quality qualified product.
Tuen Mun II: Locks, handle locks, etc.
Handle materials are zinc alloy, copper, aluminum, stainless steel, plastic, logs, ceramics, etc. In order to match the various styles of furniture, the shape and color of the handle are more colorful and colorful. The handles of electroplating and electrostatic painting have wear-resisting and anti-corrosion effects. In addition to matching with the decoration style of the room, they should also be able to withstand large pulling forces. Generally, the handles should be able to withstand more than 6 kg of pulling force.
Tuen Mun 3: Check the veneer furniture is not strict
Whether it is veneer veneer, PVC or pre-painted paper, it is necessary to pay attention to whether the leather is flat, whether there is drum, foaming or not. Look at the light when you check it, and don't see it when you don't. Particleboard veneer furniture, the ground part must be edged, and the edge banding will absorb moisture, rise and damage. Generally, the corners of the veneer furniture are easy to be tilted up. When picking, you can use your hand to rub the corners. If you get up, you will have problems with the glue.
Concerned about surprises
Tags: three tips for buying furniture hardware accessories
Previous: How to identify the true and false waterproof coatings Next: How should steel doors be maintained and maintained?
Niobium Metals, plate, bar, wire, tube, target
Purity 99.95% min.
Density 8.6 g/cc
SGS certificate
Niobium belongs to the group of refractory metals. Refractory metals are metals that have a higher melting point than platinum (1 772 °C). In refractory metals, the energy binding the individual atoms together is particularly high. Refractory metals have a high melting pointcoupled with a low vapor pressure, high modulus of elasticity and high thermal stability. Refractory metals are also characterized by a low coefficient of thermal expansion. Compared to other refractory metals, niobium has a relatively low density of only 8.6 g/cm3
Niobium is located in the same period as Molybdenum in the periodic table. Its density and melting point are therefore comparable to those of molybdenum. In the same way as Tantalum, niobium is prone to hydrogen embrittlement. The heat treatment of niobium therefore takes place in a high vacuum and not in a hydrogen atmosphere. Both niobium and tantalum also offer a high level of resistance against all acids and good formability.
At -263.95 °C, niobium has the highest transition temperature of all elements. Below this temperature, niobium is superconducting. And what is more, niobium boasts a very special range of properties:
|
Properties |
||
|
Atomic number |
41 |
|
|
Atomic mass |
92.91 |
|
|
Melting point |
2 468 °C / 2 741 K |
|
|
Boiling point |
4 900 °C / 5 173 K |
|
|
Atomic volume |
1.80 · 10-29 [m3] |
|
|
Vapor pressure |
at 1 800 °C |
5 · 10-6 [Pa] |
|
at 2 200 °C |
4 · 10-3 [Pa] |
|
|
Density at 20 °C |
8.55 [g/cm3] |
|
|
Crystal structure |
body-centered cubic |
|
|
Lattice constant |
329.4 · 10-12 [m] |
|
|
Hardness at 20 °C |
formed |
110 - 180 [HV10] |
|
recrystallized |
60 - 110 [HV10] |
|
|
Modulus of elasticity at 20 °C |
104 [GPa] |
|
|
Poisson number |
0.35 |
|
|
Coefficient of linear thermal expansion at 20 °C |
7.1 · 10-6 [m/(m·K)] |
|
|
Thermal conductivity at 20 °C |
52 [W/(m·K)] |
|
|
Specific heat at 20 °C |
0.27 [J/(g·K)] |
|
|
Electrical conductivity at 20 °C |
7 · 10-6 [1/(Ω·m)] |
|
|
Specific electrical resistance at 20 °C |
0.14 [(Ω·mm2)/m] |
|
|
Sound speed at 20 °C |
Longitudinal wave |
4 920 [m/s] |
|
Transverse wave |
2 100 [m/s] |
|
|
Electron work function |
4.36 [eV] |
|
|
Capture cross-section for thermal neutrons |
1.15 · 10-28 [m2] |
|
|
Recrystallization temperature (annealing time:1 hour) |
850 - 1 300 [ °C] |
|
|
Superconductivity (transition temperature) |
< -263.95 °C / < 9.2 K |
|
Niobium Bar,High Purity Niobium Bar,Pure Niobium Round Bars,Pure Niobium Bars 99.95%
Baoji Shengyuan Metal Material Co., Ltd. , https://www.baojisymetal.com