Japan Chalk Industry Co., Ltd. located in Misato City, Saitama Prefecture in Japan. Japan Chalk Industry has been making chalk for over 80 years. Today I will show you the process by which calcium carbonate chalk and gypsum chalk are made. Let's take a look together. Process of making calcium carbonate chalk 8 types of calcium carbonate paste Defective calcium carbonate chalk paste and water Mixer 30 minutes After resting for a day, calcium carbonate chalk is processed. The extruder- cut calcium carbonate chalk is dried for one day. Process of making gypsum chalk Gypsum will harden naturally when mixed with water. Pour into the mold After 5 minutes, remove the hardened gypsum chalk from the mold. Daiichi Daiichi Rubber Co., Ltd., located in Otaru, Hokkaido, Japan. Daiichi Rubber Co., Ltd. has been making rubber boots for over 87 years. Today I will show you the process of making rubber boots. Let's take a look together. The raw materials are natural rubber and synthetic rubber. Put the two rubbers in the machine and knead them calender roll machine Spread the kneaded rubber into a plate shape The process of making the bottom of rubber boots Stamp out the bottom of rubber boots with a waffle machine. To prevent slipping on snowy roads, rubber containing iron is inserted. Line the mold and glue it. make the body of rubber boots Vulcanization can
The rubber is not yet soft and durable. Put the rubber boots in the vulcanization can
It is processed into durable rubber boots by applying heat and pressure. Water leak inspection Finish pavement test Nichinen Co., Ltd. is located in Ageo City, Saitama Prefecture in Japan. Nichinen mass-produces more than 17 million butane gas annually. Today I will show you the process by which butane gas are made. Let's take a look together. Align the direction of the process for making the body of the gas cylinder Inspection of scum leakage Nakaya Co., Ltd. is located in Sanjo City, Niigata Prefecture. Manufacturer of replaceable blade saws and saw sharpeners. Today I will show you the process by which a saw is made. Let's take a look together. Pressing Grinding Saw blade forming Remove debris with water pressure. Dressing inspection Check size and size Process of splitting the saw blade alternately left and right Print product name, product number, logo, etc. Cut off the cutting edge and the base of the blade to allow the blade to move smoothly. Apply anti-rust oil. with handle Packaging Trial cutting Tsubame Bussan Co., Ltd. located in Tsubame City, Niigata Prefecture Founded in 1751 in Tsubame City, Niigata Prefecture.
In 1911, we became Japan's first cutlery maker and have continued the family business for the 11th generation to this day Today I will show you the process by which forks are mass produced. Let's take a look together. First, let's look at the process of molding cutlery (spoon and fork). 160,000 pieces of cutlery are manufactured every month Material cutting (mass cutting)
We cut the plate according to the size and design of the product Using a ground die, punch out from the plate according to the shape of the cutlery Roll out thinly to about 1.5mm This process is [Hanuki].
This is the process of making a fork blade by punching out the half-cut head using a die This is [Eoshi].
This process creates patterns and changes in thickness on the handles of cutlery. This is an important process in determining the design This is [Haoshi].
The final process of molding the fork. By pressing the head of the cutlery with a mold, it becomes a three-dimensional shape from a plate shape grinding mechanical polishing Washing inspection packaging shipping
