Key insights

• 🔧 Kneading process softens rubber for easier shaping and forming
• 🔧 Chemical addition and shaping with an extruding machine
• 🏗️ Tubes manufactured using air and talcum powder, cooled in water, and shaped using aluminum poles as molds during curing
• 🏗️ Vulcanization in a steam oven boosts tensile strength and elasticity of rubber tubes
• 🏗️ Rinsing rubber tubes to remove talcum powder residue and drying before cutting
• 🏗️ Machine efficiently cuts rubber tubes into elastic bands, producing a large inventory in a short time

Q&A

• How does the cutting machine contribute to the production of rubber bands?

  The cutting machine efficiently cuts the rubber tubes into elastic bands, producing a large inventory in a short time. It is capable of cutting multiple tubes at once with a rotating blade, creating elastic bands of consistent width (1.5 millimeters). The machine can produce half a million rubber bands in an hour, making the process highly efficient and productive.

• How are rubber tubes prepared for cutting in the production process?

  After vulcanization, the rubber tubes are rinsed to remove talcum powder residue and then left to dry before being cut. This rinsing process ensures that the tubes are free of any residual talcum powder, and they are drained and dried thoroughly before being subjected to the cutting machine.

• What is the significance of vulcanization in the production of rubber tubes?

  Rubber tubes undergo vulcanization in a steam oven to increase their tensile strength and elasticity. This process involves exposing the rubber to high heat and sulfur to achieve these desirable properties. Additionally, workers inject air between the tubes and molds to facilitate their removal during this stage.

• What is the purpose of using air and talcum powder during the manufacturing of rubber tubes?

  During the manufacturing of rubber tubes, air and talcum powder are used to prevent collapse while shaping the tubes. The tubes are then cooled in water to set their shape and size. Aluminum poles are utilized as molds during curing to ensure proper shaping of the tubes.

• How is rubber shaped and chemically treated in the production process?

  Rubber is shaped by rolling it into thin pieces and cutting it into small bundles. Sulfur and other chemicals are added to strengthen and make the rubber elastic. An extruding machine is used to shape the rubber into long hollow tubes, providing efficient control over the shaping process and chemical addition.

• What is the purpose of the kneading process in rubber production?

  The kneading process in rubber production serves to soften the rubber, making it easier to form and shape. It generates heat to achieve the desired softness, and the rubber is then rolled into thin pieces, sliced, and bundled for better weight and chemical control.

• 00:22 The kneading process softens the rubber, making it easier to form and shape. The rubber is rolled into thin pieces, sliced, and bundled for easier control of weight and chemical addition.
• 00:58 🔧 Making rubber: adding chemicals, shaping with an extruding machine.
• 01:29 🏗️ Tubes are manufactured using air and talcum powder to prevent collapse, cooled in water, and shaped using aluminum poles as molds during curing.
• 02:00 Rubber tubes are loaded into a steam oven to undergo vulcanization, which increases their tensile strength and elasticity. Workers inject air between the tubes and molds to facilitate removal.
• 02:28 The rubber tubes are rinsed to remove talcum powder residue and then left to dry before being cut.
• 02:55 A machine efficiently cuts rubber tubes into elastic bands, producing a large inventory in a short time.