Nickel stainless steel composite fiber felt

Abstract

The utility model relates to the technical field of composite fiber felts, in particular to a nickel stainless steel composite fiber felt. According to the technical scheme, the composite felt comprises composite felt bodies and connecting composite strips, each composite felt body is composed of a stainless steel fiber layer and a nickel fiber layer, a heat preservation sponge layer is fixed between the stainless steel fiber layer and the nickel fiber layer, the connecting composite strips are fixed to the two sides of the composite felt bodies, and the composite felt bodies are fixed side by side through the connecting composite strips. A fixing assembly is arranged between every two adjacent connecting composite strips, each connecting composite strip is of an L-shaped structure, and a gap groove is formed between every two adjacent composite felt bodies. The heat preservation sponge layer is arranged between the stainless steel fiber layer and the nickel fiber layer, the heat insulation capacity of the nickel stainless steel composite fiber felt can be improved, the situation that heat preservation and heat insulation cannot be achieved due to the fact that metal heat transfer is fast is avoided, and meanwhile the nickel stainless steel composite fiber felt is arranged to be of a combined splicing structure so that extension and cutting of different lengths can be conveniently conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of composite fiber felt, in particular to a nickel stainless steel composite fiber felt. Background Art

[0002] Nickel stainless steel composite fiber felt is a special composite material, which is a mixture of nickel fiber and stainless steel fiber. It has good high temperature resistance and corrosion resistance. Nickel stainless steel composite fiber felt is widely used in aerospace, electronic communications, medical equipment and other fields. For example, in electronic products, it can be used to make electromagnetic shielding materials. In the chemical field, due to its corrosion resistance, it is used for the protection of corrosive gas transmission pipelines. This special composite material plays an important role in some special environments and special needs.

[0003] However, since both nickel and stainless steel are hard materials, the plasticity of the nickel-stainless steel composite fiber felt is relatively poor and its manufacturing and molding are relatively difficult, which limits its application in flexible materials. At the same time, both nickel and stainless steel have good thermal conductivity, which makes the nickel-stainless steel composite fiber felt may not be ideal in some applications that require thermal insulation performance. Due to the metal material, there are certain troubles in the combination, splicing and cutting of the nickel-stainless steel composite fiber felt. Therefore, according to the above technical difficulties, corresponding improvements are made to the nickel-stainless steel composite fiber felt. Utility Model Content

[0004] The utility model aims to provide a nickel-stainless steel composite fiber felt in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is: a nickel stainless steel composite fiber felt, comprising a composite felt body and a connecting composite strip, the composite felt body is composed of a stainless steel fiber layer and a nickel fiber layer, an insulating sponge layer is fixed between the stainless steel fiber layer and the nickel fiber layer, the connecting composite strip is fixed on both sides of the composite felt body, the composite felt body is fixed in parallel by the connecting composite strip, and a fixing component is arranged between adjacent connecting composite strips.

[0006] Preferably, the connecting composite strip is an L-shaped structure, and gap grooves are provided between adjacent composite felt bodies. The gap grooves at the connecting parts facilitate bending and shaping of the connecting parts.

[0007] Preferably, the fixing assembly includes an interference fit block and a circular positioning column, end grooves are provided at the connection points at both ends of the connecting composite strip, the circular positioning column is inserted into the end grooves, a pair of matching through holes are opened in the middle position of the connecting composite strip, and the interference fit block is inserted into the matching through holes.

[0008] Preferably, the circular positioning column and the interference fit block are both interference fit in the end groove and the matching through hole, which can ensure the stability of the circular positioning column and the interference fit block when inserted into the end groove and the matching through hole.

[0009] Preferably, a pull-out end plate is fixed to the end of the circular positioning column, and the size of the pull-out end plate is the same as the size of the combined cross-section of the connected composite strip.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects: a thermal insulation sponge layer is arranged between the stainless steel fiber layer and the nickel fiber layer, which can increase the thermal insulation capacity of the nickel-stainless steel composite fiber felt and avoid the situation where the metal heat transfer is too fast and thus fails to keep warm; at the same time, a combined splicing structure is arranged to facilitate extension and cutting to different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the composite felt of the utility model;

[0012] Figure 2 This is a schematic diagram of the appearance structure of the connecting composite strip shaft side of the utility model;

[0013] Figure 3 It is a schematic diagram of the cutaway structure of the utility model from above.

[0014] Figure numerals: 1. stainless steel fiber layer; 2. nickel fiber layer; 3. thermal insulation sponge layer; 4. connecting composite strip; 41. end groove; 42. matching perforation; 5. circular positioning column; 51. pull-out end plate; 6. interference fit block; 7. clearance groove; 8. composite felt body. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Example

[0017] like Figure 1-3 As shown, the utility model proposes a nickel stainless steel composite fiber felt, including a composite felt body 8 and a connecting composite strip 4, the composite felt body 8 is composed of a stainless steel fiber layer 1 and a nickel fiber layer 2, an insulating sponge layer 3 is fixed between the stainless steel fiber layer 1 and the nickel fiber layer 2, the connecting composite strip 4 is fixed on both sides of the composite felt body 8, the composite felt body 8 is fixed in parallel by the connecting composite strip 4, a fixing component is arranged between adjacent connecting composite strips 4, the connecting composite strip 4 is an L-shaped structure, and a gap groove 7 is arranged between adjacent composite felt bodies 8.

[0018] The fixing component includes an interference fit block 6 and a circular positioning column 5. End grooves 41 are provided at the connection points at both ends of the connecting composite strip 4. The circular positioning column 5 is inserted into the end grooves 41. A pair of matching through holes 42 are provided in the middle of the connecting composite strip 4. The interference fit block 6 is inserted into the matching through holes 42. The circular positioning column 5 and the interference fit block 6 are located in the end grooves 41 and the matching through holes 42 and are both interference fit. A pull-out end plate 51 is fixed to the end of the circular positioning column 5. The size of the pull-out end plate 51 is the same as the cross-sectional size of the connecting composite strip 4 combination. Inserting the circular positioning column 5 into the circular end groove 41 can ensure that the connecting composite strip 4 combination cannot be pulled forward and backward and cause breakage. Then the interference fit block 6 is inserted into the interface in the matching through hole 42 to fix the connecting composite strip 4, ensuring that the connection of the connecting composite strip 4 cannot be broken due to vertical pulling, thereby achieving the fixation of the adjacent composite felt bodies 8.

[0019] In this embodiment, the thermal insulation sponge layer 3 is first fixed between the stainless steel fiber layer 1 and the nickel fiber layer 2 to form a composite felt body 8, and then the connecting composite strips 4 are fixed to both sides of the composite felt body 8 to form a composite felt that can be spliced ​​and combined. In this case, since the thermal insulation sponge is arranged between the stainless steel fiber layer 1 and the nickel fiber layer 2, the thermal insulation performance can be significantly improved, and it can be widely used in thermal insulation applications. In addition, since the gap grooves 7 are arranged on the front and rear sides of the connection between adjacent composite felt bodies 8, it is convenient to bend and shape, thereby improving its shaping ability. In addition, by utilizing the combination between adjacent connecting composite strips 4, the composite felt bodies 8 can be quickly completed. During the splicing process, the L-shaped connecting composite strips 4 are combined to form a rectangular structure, and circular end grooves 41 are formed at both ends of the connection. At this time, the circular positioning column 5 is inserted into the circular end groove 41 to ensure that the connecting composite strip 4 combination cannot be pulled forward and backward and cause breakage, and then the interference fit block 6 is inserted into the interface of the matching perforation 42 to fix the connecting composite strip 4 to ensure that the connection of the connecting composite strip 4 cannot be broken due to vertical pulling, thereby achieving the fixation of the adjacent composite felt body 8. The operation is relatively simple. On the contrary, by pulling out the circular positioning end plate 51 and pulling out the interference fit block 6, the quick cutting of the connection of the composite felt body 8 can be achieved.

[0020] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A nickel-stainless steel composite fiber felt, comprising a composite felt body (8) and a connecting composite strip (4), characterized in that: The composite felt body (8) is composed of a stainless steel fiber layer (1) and a nickel fiber layer (2); a thermal insulation sponge layer (3) is fixed between the stainless steel fiber layer (1) and the nickel fiber layer (2); the connecting composite strips (4) are fixed on both sides of the composite felt body (8); the composite felt body (8) is fixed in parallel via the connecting composite strips (4); and a fixing component is provided between adjacent connecting composite strips (4).

2. The nickel-stainless steel composite fiber felt according to claim 1, characterized in that: The connecting composite strip (4) is an L-shaped structure, and gap grooves (7) are provided between adjacent composite felt bodies (8).

3. The nickel-stainless steel composite fiber felt according to claim 1, characterized in that: The fixing assembly comprises an interference fit block (6) and a circular positioning column (5); end grooves (41) are provided at the connection points at both ends of the connecting composite strip (4); the circular positioning column (5) is inserted into the end grooves (41); a pair of matching through holes (42) are provided in the middle of the connecting composite strip (4); the interference fit block (6) is inserted into the matching through holes (42).

4. The nickel-stainless steel composite fiber felt according to claim 3, characterized in that: The circular positioning column (5) and the interference fit block (6) are both interference fit in the end groove (41) and the matching through hole (42).

5. The nickel-stainless steel composite fiber felt according to claim 3, characterized in that: A draw-out end plate (51) is fixed to the end of the circular positioning column (5), and the draw-out end plate (51) has the same size as the combined cross-sectional size of the connected composite strip (4).

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