Method for producing a subassembly for a domestic appliance, and subassembly

Abstract

In a method for producing a subassembly for a household appliance, at least one of a first rail and a separate second rail is cleaned by a mechanical and/or chemical cleaning operation. Subsequently the first and second rails are connected to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.

What is claimed is: 
     
         1 . A method for producing a subassembly for a household appliance, said method comprising:
 cleaning at least one of a first rail and a separate second rail by a mechanical and/or chemical cleaning operation; and   subsequently connecting the first and second rails to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.   
     
     
         2 . The method of  claim 1 , wherein the at least one of the first and second rails is the first rail, and further comprising coating the first rail with a layer comprising silicon oxide and/or silicon dioxide after the first rail has undergone the mechanical and/or chemical cleaning operation and before being connected with the second rail. 
     
     
         3 . The method of  claim 1 , wherein the at least one of the first and second rails is the second rail, and further comprising coating the second rail with a layer comprising silicon oxide and/or silicon dioxide after the second rail has undergone the mechanical and/or chemical cleaning operation and before being connected with the first rail. 
     
     
         4 . The method of  claim 1 , wherein the at least one of the first and second rails is the second rail, and further comprising, prior to undergoing the mechanical and/or chemical cleaning operation, mounting the second rail to a further component of the subassembly embodied as a retaining device; and cleaning the second rail together with the retaining device by the mechanical and/or chemical cleaning operation. 
     
     
         5 . The method of  claim 4 , further comprising coating the second rail together with the retaining device with a layer comprising silicon oxide and/or silicon dioxide. 
     
     
         6 . The method of  claim 3 , further comprising:
 prefabricating a rolling element device with a rolling element cage and rolling elements arranged thereon; and   attaching the rolling element device at least in subcomponents to the second rail after the second rail has been coated and before the first rail is connected to the second rail.   
     
     
         7 . The method of  claim 6 , further comprising, after the rolling element device has been attached on the second rail, push-fitting the first rail onto the second rail such that the rolling element device is arranged in an intermediate space between the first and second rails to thereby allow displacement of the first and second rails relative to one another via the rolling element device. 
     
     
         8 . The method of  claim 1 , wherein the mechanical cleaning operation includes a blasting process. 
     
     
         9 . The method of  claim 8 , wherein the blasting process is at least one process selected from the group consisting of an ice blasting process with blasting medium additive, a carbon dioxide pellet blasting process, a carbon dioxide snow blasting process, an ultrasound method, a plasma method and a laser cleaning process. 
     
     
         10 . The method of  claim 1 , wherein the chemical cleaning operation is a process using liquid carbon dioxide, alkaline solutions, calcium carbonate and/or chemical stripping. 
     
     
         11 . The method of  claim 1 , further comprising using a plasma process for coating the at least one of the first and second rail with a layer comprising silicon oxide and/or silicon dioxide after the at least one of the first and second rails has undergone the mechanical and/or chemical cleaning operation and before the first and second rails are connected to one another.