Faucet and manufacturing method thereof

A faucet, comprising:

• a metal liner that is prefabricated and has a cavity;
• and
• a metal valve body, that is produced through high-pressure die casting and covers the metal liner, wherein the metal liner is made of a different material than that of the metal valve body;
• wherein the metal liner is placed in a die casting mold and is completely overmolded by the metal valve body through the high-pressure die casting;
• wherein, prior to the high-pressure die casting, a liner filler is injected into the cavity of the metal liner and formed therein to support the metal liner, and after the high-pressure die casting, the liner filler is removed from the cavity, such that the metal liner has a smooth inner surface, and wherein the metal liner is configured such that water flowing through the faucet contacts only the metal liner without contacting the metal valve body;
• wherein an outer surface of the metal liner and a corresponding inner surface of the metal valve body constitute a metallurgical bonding interface, and a shear strength of the metallurgical bonding interface is not less than 30 Mpa;
• wherein the metal valve body comprises a water inlet valve body and a water outlet valve body that are integrally formed;
• wherein an end of the water inlet valve body facing away from the water outlet valve body is configured for support positioning and water intake;
• the water outlet valve body is in a bent connection with the water inlet valve body;
• the metal liner comprises a water inlet pipe section and a water outlet pipe section that are integrally formed;
• and the water inlet pipe section is arranged corresponding to a junction between the water inlet valve body and the water outlet valve body, and the water outlet pipe section is arranged corresponding to the water outlet valve body.