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UNG Wireless network constant humidity machine for showcase
Model:
UNG-airtech.com target='_blank'>UNG-S900
The impact of humidity and temperature in the museum's display environment on cultural relics
Many artworks in museum collections are made of humidity-sensitive materials, and their size and material change with the humidity and temperature in the air. This is especially true of fibrous paper, organic leather, fur, feathers and bones. Among the two factors of humidity and temperature, humidity plays a more important role in structural changes. Humidity, especially relative humidity, affects the changes in the size of humidity-sensitive materials and consequently their strength. Wooden objects, such as a large painted wood carving or a piece of wooden furniture, when placed in an environment with stable relative humidity and normal temperature, will reach a certain degree of balance with the environment after a period of time (months or years).
The utensils will crack and deform. However, when the environmental temperature and humidity are properly adjusted and controlled, these defects or deformations will become stable. At this time, if the utensils are moved or exposed to an environment with different relative humidity, such as in a packing box, the wood will undergo a new dynamic process of absorbing or releasing moisture. The result of this change is that the moisture contained in the wood will expand or shrink the wood mesh, which will cause warping, cracking or other conditions again. For painted sculptures or furniture, the end result of exposure to a constantly changing relative humidity environment is peeling of surface paint or the destruction of certain wooden structures. The control of relative humidity is the primary factor to keep the wood structure stable.
Although it is necessary to control the relative humidity in order to maintain a stable appearance and structure, it should be noted that there are some external environmental restrictions. The higher the relative humidity, the faster the growth of mold and the decrease in the strength of the utensils. When the relative humidity is too low, the utensils will become brittle due to dryness. Sudden changes in relative humidity are the most harmful, increasing cracking, flaking and structural strain. This situation is currently common in museum warehouses and showrooms.
Ironware, copperware, silverware and their alloys must be stored in a controlled dry environment, preferably with a relative humidity lower than 25%RH, in order to minimize the corrosion or oxidation of their surfaces. Sudden changes in temperature in the surrounding environment, such as cooling, will cause condensation on the surface of the utensils and produce rust. Copper and its alloy products will react with carbon dioxide in the atmosphere to form a corrosive layer (such as copper carbonate); but when it exists in a humid climate, the bronze disease mentioned above may occur. If not handled in time, this situation can exist stably under low relative humidity (stored in the
UNG showcase constant humidity machine).
UNG developed the UNG-S900 dedicated electronic humidity machine for the preventive protection of museum cultural relics, which can provide a stable temperature and humidity for cultural relics to be stored in the micro-environment conditions of display.
Product name: Wireless network constant humidity machine for
UNG showcase
Model:
UNG-S900
