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First, the material characteristics
Zinc alloy composition
Zinc alloy is based on zinc and other elements added to the composition of the alloy. When shopping for zinc alloy concealed handles, to understand its alloy composition. High-quality zinc alloy usually contains aluminum, copper and other elements. For example, the right amount of aluminum can improve the strength and corrosion resistance of the alloy, while the copper element helps to improve the processing performance and appearance color of the alloy.
Generally speaking, the content of zinc in zinc alloys is above 90%, and the proportion of other elements needs to comply with relevant quality standards. If the alloy composition is not reasonable, it may lead to problems such as easy breakage and surface rust.
Judgment of material quality
Appearance Inspection
Observe whether the surface of the handles is smooth, flat, with or without bubbles, sand holes, cracks and other defects. Smooth surface handles are not only beautiful, but also in the process of use is not easy to hide dirt, easy to clean.
Check whether the color of the handle is uniform. If there are different shades of color, it may indicate that the process control in the production process is not good, or the material itself has problems.
Weight perception
Feel the weight in your hand. Generally speaking, heavier zinc alloy dark handles may mean that its zinc alloy density is greater, to a certain extent, reflecting the material’s degree of thickness. However, this is not the only judgment standard, but also need to be combined with other aspects of comprehensive consideration.
Second, process and manufacturing
Casting process
Zinc alloy dark handles common casting process is die casting and gravity casting.
Die casting process
Die casting handles are usually characterized by high precision and complex and diverse shapes. In the die-casting process, the liquid metal is rapidly injected into the mold cavity under high pressure, which can form fine textures and complex shapes. This process is highly productive and can be mass produced.
However, the die-casting process has high requirements for the mold, if the mold quality is not good, it may affect the dimensional accuracy and surface quality of the handles. When shopping, you can check whether the mold line of the puller is flat and whether the size of each part is accurate.
Gravity casting process
Gravity casting relative to die casting, the production of the internal organization of the handles more dense, better mechanical properties. This process produces handles in some of the higher requirements for strength and durability of the occasion is more suitable.
However, the production efficiency of gravity casting is low, the cost is relatively high, so its price may be slightly higher than the die-casting process.
Surface treatment process
Electroplating
Electroplating is a common surface treatment for zinc alloy concealed handles. Electroplating can form a layer of metal protective film on the surface of the handles, such as chrome-plated, nickel-plated and so on. Chrome-plated handle surface bright as a mirror, with good decorative and corrosion resistance; nickel-plated handles are softer in color, but also has a better corrosion resistance.
When shopping, check the quality of the plating layer. High-quality plating layer should be uniform, dense, no peeling, flaking and other phenomena. You can use your fingernail to gently scratch the plating surface, if the plating layer is not obviously off, that is a good quality.
Spraying treatment
Spraying treatment can provide a variety of color choices for the handles, and can form different surface texture, such as frosted texture, matte texture, etc..
Check whether the sprayed surface is flat and the color is firm. You can use a clean cloth dipped in a little alcohol to wipe the surface of the handles, if the color does not fall off, indicating that the spraying quality is good.
Third, size and adaptability
Size specifications
First of all, according to the type of furniture or door used to choose the right size of the dark pull handle. For example, for closet doors, if the door is wider, then you need to choose a longer concealed handles to ensure the convenience of use and aesthetics.
Common zinc alloy concealed handles are available in different lengths such as 50mm, 100mm and 150mm. It is important to measure the thickness of the door or furniture panel to ensure that the mounting screws are of the right length and can be firmly installed on the panel.
Adaptability
Consider whether the concealed handle is compatible with the style of the furniture or door. If the furniture is modern minimalist style, it is suitable to choose the zinc alloy dark handles with simple shape and smooth lines; while for the European classical style furniture, it is possible to choose the dark handles with European classical elements, such as carvings, curved shapes and so on.
At the same time, but also consider the dark handles and the coordination of the surrounding environment. For example, in the kitchen environment, to choose the oil resistance, easy to clean the dark handles, and its color to match the overall color of the kitchen.
Fourth, function and practicality
Grip comfort
When shopping, you can actually hold the pull handle and feel its grip. The shape and size of the handles should be in line with the principle of ergonomics, comfortable to hold, there will be no feeling of pinching.
For example, some concealed handles with round or oval cross-section usually feel more comfortable to hold than those with square cross-section, especially when used for a long time.
Ease of Installation and Removal
Concealed handles should be easy to install and remove. Check the mounting structure of the handles. Generally, concealed handles with screw fixings are more securely mounted, but make sure that the screw holes are accurately positioned and that the screws are easy to tighten.
Some concealed handles may also be equipped with simple installation tools, which will be more convenient for users to install themselves. At the same time, when you need to replace the pull handle, it is also important to be able to easily dismantle.
Fifth, the brand and price
Brand selection
Choose a well-known brand of zinc alloy dark handles can to a certain extent to ensure product quality and after-sales service. Well-known brands (Haisepu) usually have strict production process control and quality testing standards.
You can find out the reputation of the brand by checking the brand’s reputation and user reviews. For example, some brands:Haisepu, which have been deeply cultivated in the furniture hardware industry for many years, tend to produce more trustworthy zinc alloy concealed handles.
Price Consideration
Price is an important factor when shopping. Generally speaking, the price of zinc alloy concealed handles with better quality and exquisite craftsmanship is relatively high. However, don’t judge the good or bad of the handles only by the price.
Low-priced zinc alloy concealed handles may have poor material quality, rough craftsmanship and other problems, while high-priced handles may also have a brand premium. Within the budget, it is important to consider the material, craftsmanship, functionality and other aspects of the handles to choose the most cost-effective products.