Abstract: A tensile testing fixture and a tensile testing device with improved specimen tensile stress accuracy are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.

Abstract: A tensile testing fixture and a tensile testing device are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.

Abstract: An injection molding system includes a mold with a mold cavity, an injection device, and a temperature control device. The injection device is capable of injecting a molten material into the mold cavity. The temperature control device includes a heating system and a cooling system. The heating system utilizes hot fluid to increase a temperature of the mold to a predetermined upper temperature when the injection device starting to inject the material. The cooling system utilizes cool fluid to decrease the temperature of the mold to a predetermined low temperature when the material is being solidified in the mold cavity.