The ordinary glass cup is a staple in households, restaurants, and cafes around the world. Despite its simplicity, it encapsulates a range of technical specifications that enhance its functionality and usability.
Material Composition
Ordinary glass cups are primarily made from sodalime glass, which consists of silica, sodium carbonate, and calcium oxide. This composition offers a balance of durability and clarity, making the cups both aesthetically pleasing and practical.
Dimensional Standards
Typically, an ordinary glass cup ranges in capacity from 200 ml to 400 ml, with heights varying from 10 cm to 15 cm and diameters from 7 cm to 9 cm. These dimensions accommodate a wide array of beverages, from water to cocktails.
Thermal Resistance
The glass can withstand moderate temperature changes, but its thermal shock resistance is limited. Ordinary glass cups can handle temperatures up to approximately 70°C to 80°C; however, sudden exposure to extreme temperature variations can lead to breakage.
Weight Specifications
The weight of an ordinary glass cup generally ranges from 200 grams to 350 grams. This weight provides a sturdy feel while maintaining mobility for easy handling.
Surface Finish
Ordinary glass cups often feature a smooth, nonporous surface that is easy to clean and resistant to staining. Many designs incorporate a polished finish, enhancing their visual appeal and comfort during use.
Durability and Safety
Sodalime glass is not as durable as borosilicate glass but is sufficient for everyday use under moderate conditions. It is also nontoxic and dishwashersafe, contributing to its popularity in the food and beverage industry.
Design Variants
The ordinary glass cup comes in various shapes and designs, including straightsided, curved, and tapered models. Customization options, such as screen printing or etching, are common for branding purposes.
Manufacturing Process
Typically produced through the pressing or blowing method, each glass cup is meticulously formed to ensure consistent quality. Quality control measures are implemented to detect flaws, ensuring only defectfree products reach consumers.
In summary, the ordinary glass cup, while ubiquitous, is crafted with specific technical indicators that highlight its utility, safety, and aesthetic qualities. These features make it an essential item in daily life across different settings.